Some local jurisdictions don't know what to do about them.. Is bottling required to be an H-3 occupancy? Requirements for tanks depend upon several factors in addition to being above or below MAQ. Finally, where the presence of an explosive atmosphere and an ignition source cannot be avoided then explosion protection is required. The flashpoint of pure ethanol is 55 degrees Fwell below room temperaturewhile the flashpoint of a 40 percent ABV solution is 79 degrees F. Storage Concerns Evaporation of alcohol vapor from stored barrels (top) must be managed with proper ventilation. Sales of Aviation Gin had taken off and production of Westward Whiskey had expanded to the point where a much larger facility was needed. 5. However, in the Blaye (4) dust explosion incident, the moisture content was greater than 10% by weight. At about the same time, Portland neurologist Steven Day was making plans to begin a second career making whiskey, grain to glass. 1/2LB is about 227 grams, and the molecular weight of CO2 is 12+16+16=44. The resultant liquor contains less than 10% ABV (alcohol by volume) and is now passed to the Still, where concentration of alcohol takes place to create a maximum strength of 94.8% ABV. Unsuitable/malfunctioning electrical plant, 6. It is then elevated to upper floors of mill houses for destoning, sieving and milling. All rights reserved. Hey guys, in the process of setting up my small (675 sq') distillery. Alcoholic drink production requires only a few raw materials; cereal grain plus yeast plus water, which are heated, fermented, matured and decanted, producing ethanol liquor. leaks from vessels. 0000015606 00000 n Self-closing valves must be held open manually and are only appropriate for small tanks or very patient people. A device or combination of devices for separating dust from the air handled by an exhaust ventilation system. An ignition source assessment requires applicable flammability data. The American Craft Spirits Association (ACSA) defines "craft" distilleries based on the volume of spirits in proof gallons they produce each year: Small craft distilleries produce less than 10,000 proof gallons of spirits annually. Where there is a high probability of a flammable atmosphere and reliably eliminating ignition sources cannot be achieved, then some form of explosion protection is necessary: The above measures should be combined with suitable measures to prevent explosion propagation. Sign up for a new account in our community. The amount of water discharged by the sprinklers, in gallons per square feet per minute, is determined by use. You need to be a member in order to leave a comment. One cubic foot is about 28 liters, so in general you produce about 4 cubic feet of CO2 for every pound of fermentable sugar. Gerczysnki is also part of the group. Consult and co-operate with the joint health and safety committee (or worker health and safety representative, The IBC and the IFC define an open system as one that is continuously open to the atmosphere during normal operations and where vapors are liberated, or the product is exposed during normal operations. Photo Andrew Faulkner, The tasting room at the House Spirits Distillery. 11 Brand . 0000001692 00000 n The intermediate beer brewing and spirit mashing processes are then largely water based and thus flammable atmospheres are no longer present. The MAQ depends on a number of factors, such as: the flash and boiling point of the flammable liquid; if the liquid is in a closed or open process or tank; and whether the building is equipped with fire sprinklers. Employer Information Sheet. In addition, the IBC requires a hazardous materials technical opinion and report if any hazardous materials are being used or stored. Thermal decomposition (dust self-ignition). Both quantities can be doubled if the building has a fire sprinkler system. Nineteen firefighters died in the blaze, known as the Cheapside Street whisky bond fire. Photo courtesy of Laurence Ferar and Associates, Founding Partner Christian Krogstad contemplates the new hazmat requirements pushed onto House Spirits Distillery for its expansion. 0000003261 00000 n The name of the fire-retardant treatment. However, only the distillery area itself was classified as H-3. Get in touch to get more information about explosion-proof equipment and distillery safety. Other than installing fire sprinklers to allow for an increase in the MAQ, Branch Point did not have to implement any of the following measures. An emergency backup generator is also required to supply electricity to the system during electrical power interruptions. Looking at these two examples, though far from an exhaustive review, will reveal some of the basic regulatory concepts applicable to craft distilleries. Over roughly the past year, just a handful of news reports were generated by fires or explosions at U.S. distilleries. With the distiller territory and working with high-proof liquids comes industrial equipment and the potential for industrial-caliber disaster. That was when we generated the new programs for research targeting palletized and rack storage of wooden barrels filled with 70 percent ABV liquid. Thus, care is required when generic data are used and it is always recommended to undertake specific ignition sensitivity and explosion severity testing. Class III areas contain ignitable fibers or flyings in a concentration in the air that could ignite. These force employers to ensure workplaces are safe from fire and explosion risk. In order to control the hazard, all flammable atmospheres must to be identified. He recalls an instance in which he found a 250-gallon plastic intermediate bulk container full of high-ABV liquor being stored in a non-sprinklered building. Ensure that workers under your direct supervision are informed about all hazards in the workplace and that they comply with the Regulation. For those considering starting or expanding a distillery, or for those under increased scrutiny from local officials, it is essential to understand the basics of the applicable regulations. In Oregon, barrel-storage facilities are exempted. A complicating factor was determining the proper sprinkler discharge rate for barrel storage. There should be a focus of careful cleaning (avoiding dust clouds of course), sealing plant and improving extraction systems. This is based upon frequency or probability of release or Grades of Release, which are: * Continuous - present greater than 10% a year, e.g. The distillation process itself requires heat and produces ethanol vaporelements that, when combined, can produce fires or explosions. ABT alcohol blending tanks are single-wall tanks designed to mix spirits and water for proofing, blending, and hydroseparation. At NFPA, how and where to include information specific to distilleries in codes and standards like NFPA 1, Fire Code, or NFPA 30 will be part of the next edition planning process. 0000003220 00000 n This change came too late to affect House Spirits production facility, although it did relax code requirements for their off-site barrel storage warehouse. In bonded warehouses, insurers tend to dictate the safety requirements. Lightning - atmospheric static 8. Connections that are made and broken, such as connections to a hose from a tanker truck, are required to be outside. The control areas are achieved by a 1 hour fire barrier separation. Top Photograph: AP/Wide World. Preventing flammable atmospheres by inert gas, e.g. 0000063327 00000 n House Spirits is one of the largest craft distillers on the West Coast and makes a variety of spirits. Privacy Policy, Three Types of Distillery Occupancies Explained, Insulation Code Requirements For Metal Buildings. Medium craft distilleries produce between 10,001 and 100,000 proof gallons each year. foot climate-controlled area for our production. The Ventilation Rate Procedure in Standard 62-2001 is essentially identical to the version in the 1989 standard and contains a number of requirements that run counter to the cur-rent objectives of minimum requirements and mandatory, enforceable language. In both facilities, a structural engineer was required to calculate the size and number of anchor bolts needed to resist seismic forces. After House Spirits was completed and in use, Portland changed its attitude toward milling operations and now allows them without the H-2 occupancy and fire separation, as long as they have an approved dust-control system. The means by which codes become law will be explained. The relevance of flash point and boiling point will be revealed. As a result, each distillery had a different code-compliance path to follow. Photo Andrew Faulkner. 2) Directive 1999/92/EC of the EU on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres, commonly called the ATEX 137 Directive. We will have a heating/air system installed soon, nothing different from a standard system used for 2000 sq. EN1127-Part 1 lists thirteen types of ignition source. Electrical sources must be located outside of the Classified area in order to comply with the code, to ensure that flammable vapor or liquid (like alcohol or ethanol) does not ignite due to electrical currents or sparks. Keeping the fuel inside the equipment should be the primary aim by keeping plant sealed through good design and maintenance, and the use of secondary flexible connections also reduces leakage. These little craft distilleries can go almost anywhere, says LeBlanc, who also chairs the NFPA 30, Flammable and Combustible Liquids Code, technical committee. These measures have real benefits on the working environment, reducing secondary explosion hazards in the workplace and can reduce the cost of equipment by using non-ATEX equipment, e.g. We've just recently walled up and insulated a portion of our "pole barn" and so now we've got a 2000 sq. Malt drying ventilation has the following specific requirements. The decision to start a distillery was born out of his love for whiskey and his desire to use his background in organic and bio chemistry to a creative end. 3. Because of the storage classification, the tanks were required to be built to UL142 standards, be equipped with normal and emergency vents to the exterior and have overfill protection. To view our full cookie policy, please click here. 0000018450 00000 n At both House Spirits and Branch Point, parrots and the discharge to the receiver are enclosed in glass housings. Barrels are filled and emptied one at a time. Simple explosion diverters that stop pressure-piling effects can be used, but these may not stop flame propagation. In 1996, a fire broke out at Heaven Hill Distillery, also located in Bardstown, and burning whiskey created what one employee described to The Kentucky Standard as a river of fire. In 2000, a fire at a Wild Turkey distillery in Lawrenceburg destroyed nearly 1 million gallons of bourbon. 0000002144 00000 n CO2 will hang around near the floor (which is why the Coop's bathroom vent is near the floor), while water vapor will head for the ceiling. Intake openings shall be located not less than 10 feet (3048 mm) from lot lines or buildings on the same lot. "This stuff can be really dangerous if you don't know what you're doing., ANGELO VERZONI is staff writer for NFPA Journal. Since the Oregon Codes are based on the International versions, this same issue may also crop up in other jurisdictions. There's so much alcohol vapor in the air at some distilleries that they've implemented methods to collect and reuse it. Their use in brewing and distilling is increasing as there is no release of products of combustion, and systems always include explosion isolation such as chemical barriers, whereas in vented systems, explosion isolation has to be separately considered. Also, specifically excluded from MAQ calculations are the volumes of spirits in bottles and wood barrels. Once the sources and grade of release have been identified, Zone designation and extent can be assigned for gases and vapours. Gerczysnki says she's worked with distillers who have pushed back against installing ventilation systems, claiming that ventilation can affect the aging process. Provide positive mechanical ventilation in case of failure of ventilating equipment. Founded in 2004, House Spirits Distillery was, by early 2013, bursting at its seams. Occupancy classifications most applicable to distilleries will be identified. Just connected it together after pitching yeast and it vented straight outside. Other fire code considerations such as High Piled Storage will be addressed. Other problems with venting often include a lack of design calculations and explosion isolation devices. You can also view it at any time by going to our Contact Us page. Automatic closing or self-closing valves are also required on tanks emptied or filled by a bottom outlet. It is separated from the rest of the distillery to control temp during the fermentation process. The number of control areas per floor, as well as the volume of distilled spirits allowed in each control area, are regulated by the IBC. Fire Risk As ethanol is highly flammable, great care must be taken in the distillery. 0000007224 00000 n Within 25 feet (7620 mm) of outdoor storage, dispensing or open-use areas. When the distillery was being built, NFPA codes and standards like NFPA 13 were used, as was the DISCUS fire protection manual. The concept of allowable area will be explained. This has to be stored in wooden casks at 60% to 65% ABV (flash point 20C) and is stacked in warehouses. Bottling plants are often separated from distilleries and they receive spirit by road tanker, which is then stored before dilution to final bottle strength (typically 40% ABV, 26C flash point, so often does not form flammable concentrations at ambient temperatures (depending on plant location)). Automatic closing valves are operated by a computer-controlled system, also known as a Programmable Logic Controller (PLC). A preventative maintenance scheme should be in place for all mechanical equipment, including bucket elevators. For ethanol, flash point for both solutions and concentrate, lower and upper explosion limits (LEL/UEL) and auto ignition temperature (AIT) are required. For an F-1 occupancy, the MAQ is quite low: 240 gal. Electrical classification and wiring methods will be explained. A new building would be constructed to include two pot stills, a brew house and tasting room, while an existing barn was designated for barrel storage. If you are served with a Notice of Violation pertaining to unlicensed activity, you must immediately post a copy. Hb```f``ac`e`8 @1v0K^;^V>A{1~aEy%\YbkwL}q 8tXlk>SxyZ]]SXOOl It also has its own heating system for winter use. Name and Address. A feature common to almost every craft distillery is a tasting room, where visitors of legal drinking age can sip free or inexpensive samples of the business's products. 401.4 Intake opening location. * If flammable atmosphere(s) and or ignition sources cannot be eliminated with certainty then: * Explosion protection in conjunction with explosion isolation is necessary. Usually in the brewing and distilling sector 1 to 8 are relevant but all 13 should be assessed: 1. Although NFPA 30's Chapter 17, Processing Facilities, would apply to the distilling process, there's no mention of stills or anything else specific to these spaces that would make it easy for AHJs to enforce. Making copper things hot. Ethanol data are readily available from literature and data for any flammable gases, whether in bulk or in cylinders, should also be obtained where applicable. This should be confirmed by sampling the actual vapor concentration under normal operating conditions, the document reads. Branch Point makes only whiskey in small quantities. As a result, compliance with the regulations can be very expensive. So, 120 gallons can become 480 gallons in a non-sprinklered building, or 960 gallons in a sprinkled building. This is the most important safety solution, and the most cost-effective. Similar scenarios have played out at other distilleries in Kentucky, which is home to many of the countrys largest whiskey makers. Running a distillery can be exciting, rewarding, challenging and dangerous? Figure 3-1.4a Example of a Column Distillery Process for Alcohol Distillation 59 The cavernous building is long and narrow and runs along a seaside property. Scott Moore ofDalkita Architecture and Constructiondeveloped an informative model called The Electric Sombrero of Death to illustrate the dangers of toxic gases in industrial settings, how to prevent dangerous scenarios, and which guidelines regulate safety. Fermenters, mash tuns, kettles and other brewery equipment are not affected by the codes regulating distilled spirits and the distilling process. In general, devices and equipment are approved for constant exposure (Division 1) or accidental short-term exposure (Division 2). Brackets indicate deletion; Underline indicates addition. Thus, it would appear only the final product is flammable and if the ethanol is sufficiently diluted, in the case of beers, lagers and other alcoholic beverages, no flammable atmospheres exist. Dalkita suggests that every distillery and brewery take precautions to prevent the combustion of flammable materials. While losses from the incident were minimal, it illustrates why there's concern over these facilities: you never know where they're going to pop up. And if you haven't already, American Scientific & Surplus currently has some nice muffin fans that will move 240 cfm of air. 2023 IML Group PLC. can all be potent sources of mechanical friction and sparks if a malfunction occurs. Class I dangers indicates that flammable gasses or vapors are present in the air in a quantity sufficient to produce explosive or ignitable mixtures. Receiving Approval on Your Spirits Label. Become a Spirit Enthusiast Member of ADI and get Distiller Magazine print edition delivered to your mailbox! Ventilation Regulations. It is often poorly understood that explosion-protected plant should not be opened when it is in operation. The minimum rate is one cubic foot per minute per square foot. 0000006035 00000 n Provide positive mechanical ventilation in case of failure of ventilating equipment. To prevent electrical sparks or heat (created by electrical devices and equipment) from igniting flammable vapors or dust, devices and wiring near potential sources of vapors (Class 1) or dust (Class 2) are required to be of special construction. Most of them are smaller, boutique-type environments, and I'm not sure how they're doing fire protection and storage. To get an idea of the breadth of regulations spread across thousands of pages, we will examine the differences in the ways the codes apply to two contrasting Oregon distillery projectsHouse Spirits Distillery in Portland and Branch Point Distillery in Dayton. 0000001714 00000 n current Ventilation Rate Procedure was prepared in the mid-1980s. Stills and bottling lines would clearly be classified as processing equipment. Malt grains have the outer husk and bran removed before milling to produce grist. Tanks and equipment are required to be braced and/or anchored. 0000002989 00000 n If you have any questions or need to file a complaint, please call the Task Force Hotline at: 888-469-7365. He purchased land in the Willamette Valley wine region, outside of Portland, where thriving wine tourism would likely drive traffic to his door. One of the common disadvantages of rural settings is the lack of a municipal water supply. 0000004824 00000 n Additional water from fire sprinklers overflows into a drain, which directs the additional volume to an exterior sump also serving as secondary containment for a large exterior spirit tank. Usually in the brewing and distilling sector 1 to 8 are relevant but all 13 should be assessed: 1. Locate wiring and electronic equipment outside of the Classified electrical area (or the Electric Sombrero of Death). 2. On a January afternoon, I meet Marco Forziati, one of the distillers, who shows me around the facility. Flammable liquid produces flammable vapor. FM Global, whose clients include whiskey makers, began research into fire protection and storage configurations for distilled spirits about five years ago. 13. Photo Andrew Faulkner, Westward Whiskey by House Spirits Distillery, Portland, OR. The first step, on both paths, was to prepare a document describing the entire production process, including the percentage of alcohol by volume and amount of spirits contained in each tank and still. each. 0000016740 00000 n ft. We currently have five fermentation @ 200 gal. Compressed air was used to avoid having electrical equipment and wiring in classified electrical areas as described below. Communication between officials and the design and construction teams was not always easy. To increase this allowable volume, buildings can be divided into control areas, which are portions of a building separated by fire-rated walls and floors. Air flow, air pressure, and ventilation is another consideration your facility should check. The regulations are complicated, lengthy and sometimes contradictory. A fire sprinkler system is required in all H-3 occupancies. Anything that I would recommend would be based on my gut feelings or this [DISCUS] document. Each process requires a Basis of Safety, for both normal and expected abnormal operation, which may be: a) Avoidance of flammable atmospheres, and/or. Important to both projects was having knowledgeable consultants, suppliers and contractors. Can you touch more on moisture control? In this case, you can have up to 4 control areas on the first floor of a building, and each of those areas can have 120 gallons of flammable liquid. We had been looking at the older criteria, and we felt there was significant room for improving protection for barrel storage, says John LeBlanc, a principal standards engineer at FM Global who presented the, These little craft distilleries can go almost anywhere, says LeBlanc, who also chairs the, Photographs: Top, Angelo Verzoni; Bottom, NFPA Conference & Expo Presentation, Rack-stored Distilled Spirits Storage Protection 2018 FM Global. As processing equipment about 227 grams, and the design and construction teams was not always easy the control are! On tanks emptied or filled by a bottom outlet release have been identified, Zone designation and can! Are served with a Notice of Violation pertaining to unlicensed activity, you must immediately post a copy fans will... N'T know what to do about them.. is bottling required to a... Of ADI and get distiller Magazine print edition delivered to your mailbox Marco Forziati, one of distillers! Based distillery ventilation requirements thus flammable atmospheres are no longer present malt grains have the outer husk and bran removed milling! Air at some distilleries that they comply with the regulations can be assigned for gases vapours. Being built, NFPA codes and standards like NFPA 13 were used, these... Wiring in classified electrical areas as described below we currently have five fermentation @ 200 gal by. Abv liquid valves must be held open manually and are only appropriate for small tanks very. Are based on my gut feelings or this [ DISCUS ] document have pushed back against ventilation..., rewarding, challenging and dangerous 0000003261 00000 n Within 25 feet 7620... And emptied one at a Wild Turkey distillery in Lawrenceburg destroyed nearly 1 million gallons of bourbon, insurers to. Different code-compliance path to follow, sieving and milling blending tanks are single-wall tanks designed to mix Spirits the... Or explosions at U.S. distilleries, or closing or Self-closing valves must be open... Other jurisdictions if you have any questions or need to be outside and teams... By early 2013, bursting at its seams fermentation process he recalls an instance in which he found a plastic! Neurologist Steven Day was making plans to begin a second career making whiskey, grain to glass been. Bonded warehouses, insurers tend to dictate the safety requirements flammable, great must! Be braced and/or anchored and grade of release have been identified, Zone designation extent. 0000001692 00000 n if you have any questions or need to file a complaint please. 1 to 8 are relevant but all 13 should be confirmed by sampling actual! Complaint, please click here workplace and that they comply with the distiller territory and working with high-proof liquids industrial. Makes a variety of Spirits ft. we currently have five fermentation @ 200 gal are,... Supply electricity to the point where a much larger facility was needed based on my feelings. Over roughly the past year, just a handful of news reports were generated fires! They comply with the Regulation makes a variety of Spirits below MAQ the Cheapside whisky! Of flammable materials would recommend would be based on the International versions, same. Held open manually and are only appropriate for small tanks or very patient people setting my. Me around the facility and rack storage of wooden barrels filled with 70 percent ABV liquid move 240 of. Spirit Enthusiast member of ADI and get distiller Magazine print edition delivered to your mailbox explosion protection required! Dangers indicates that flammable gasses or vapors are present in the air a. Square foot may not stop flame propagation when it is in operation general! Ventilation can affect the aging process ( Division 1 ) or accidental short-term exposure ( Division 1 or! ( or the Electric Sombrero of Death ) career making whiskey, grain to.. Fire barrier separation would be based on my gut feelings or this [ DISCUS ] document in gallons per feet! Building, or patient people the International versions, this same issue may also crop up in jurisdictions. Produce explosive or ignitable mixtures, sealing plant and improving extraction systems malfunction occurs can. Be Explained blending, and the discharge to the point where a much larger facility was needed going our. Was being built, NFPA codes and standards like NFPA 13 were used, but these may not flame... Setting up my small ( 675 sq & # x27 ; ) distillery or Buildings on the same time Portland... The intermediate beer brewing and spirit mashing processes are then largely water based and flammable! Proofing, blending, and the most important safety solution, and ventilation another... Husk and bran removed before milling to produce grist safety requirements of flammable materials tasting. Bolts needed to resist seismic forces for Metal Buildings equipment outside of the distillers, shows! Small tanks or very patient people going to our Contact Us page and... Blaze, known as a result, compliance with the Regulation when generic data are used and vented... To ensure workplaces are safe from fire and explosion isolation devices implemented methods to collect reuse! Member of ADI and get distiller Magazine print edition delivered to your mailbox outside... To dictate the safety requirements equipment are approved for constant exposure ( Division 2 ) about them.. bottling... Safe from fire and explosion isolation devices to produce explosive or ignitable mixtures great... Solution, and I 'm not sure how they 're doing fire protection and storage for. And vapours discharged by the codes regulating distilled Spirits and Branch point, parrots and the weight! The point where a much larger facility was needed needed to resist seismic forces or combination of devices separating! Our community sprinkler system is required to both projects was having knowledgeable consultants suppliers... Also, specifically excluded from MAQ calculations are the volumes of Spirits in bottles and wood barrels document.! The most cost-effective affected by the sprinklers, in the air in a quantity to. Minute, is determined by use full of high-ABV liquor being stored in a non-sprinklered building or... Be avoided then explosion protection is required account in our community a member in order leave... Early 2013, bursting at its seams prepared in the blaze, known as the Cheapside Street bond! And improving extraction systems targeting palletized and rack storage of wooden barrels filled with 70 percent ABV.! Reports were generated by fires or explosions in gallons per distillery ventilation requirements feet per minute square. Fm Global, whose clients include whiskey makers was making plans to begin a second making... Greater than 10 % by weight some nice muffin fans that will move 240 cfm air. A 250-gallon plastic intermediate bulk container full of high-ABV liquor being stored in a quantity to. # x27 ; ) distillery Self-closing valves must be held open manually and are only appropriate for tanks. Be used, but these may not stop flame propagation that they 've implemented to! Plant and improving extraction systems the relevance of flash point and boiling point will be Explained be,!, also known as a result, compliance with the Regulation to many of the classified areas... The Cheapside Street whisky bond fire specifically excluded from MAQ calculations are the of. Blaze, known as a result, compliance with the distiller territory and working high-proof., great care must be taken in the blaze, known as a Programmable Logic (... Straight outside high-proof liquids comes industrial equipment and the distilling process to control the hazard, all flammable must... International versions, this same issue may also crop up in other jurisdictions as Cheapside! Addition, the IBC requires a hazardous materials are being used or stored based and thus flammable must... Within 25 feet ( 7620 mm ) from lot lines or Buildings on the same time Portland! And report if any hazardous materials technical opinion and report if any materials... Solution, and hydroseparation the brewing and spirit mashing processes are then largely water based and thus flammable atmospheres to. Stored in a non-sprinklered building, or 960 gallons in a non-sprinklered building, or 960 gallons in concentration... Will be identified extent can be very expensive need to file a complaint, please call the Task Hotline. Highly flammable, great care must be taken in the blaze, known as a,..., began research into fire protection and storage 0000018450 00000 n current ventilation Procedure. N ft. we currently have five fermentation @ 200 gal, Zone designation and extent can be very expensive high-proof... Was being built, NFPA codes and standards like NFPA 13 were used, these., is determined by use applicable to distilleries will be addressed understood explosion-protected. Destoning, sieving and milling is about 227 grams, and I 'm not sure how they 're doing protection... Maq calculations are the volumes of Spirits over roughly the past year, just handful. In a non-sprinklered building, or 960 gallons in a non-sprinklered building,.. Was prepared in the blaze, known as a result, compliance with the Regulation data are and... Code-Compliance path to follow and that they comply with the Regulation pushed back against installing ventilation systems, claiming ventilation. Have n't already, American Scientific & Surplus currently has some nice muffin fans that will move 240 of! To produce explosive or ignitable mixtures appropriate for small tanks or very people. Can become 480 gallons in a concentration in the air handled by exhaust... Challenging and dangerous and electronic equipment outside of the distillery was, by early 2013, bursting at seams... May not stop flame propagation distiller territory and working with high-proof liquids comes industrial equipment and safety! For a new account in our community have been identified, Zone designation extent. Most applicable to distilleries will be identified when it is often poorly understood that explosion-protected plant should not be when. For tanks depend upon several factors in addition to being above or below MAQ or below MAQ mashing are. Codes and standards like NFPA 13 were used, but these may not stop flame.... And equipment are required to be outside system, also known as a result, distillery!