Arielle Cruz
Alcohol proof is a measure of the potency and intensity of an alcoholic beverage, indicating the amount of ethanol in the drink. In the US, a spirit's proof is twice its alcohol by volume (ABV) percentage. For example, a spirit labelled as 100 proof contains roughly 50% ABV. Spirits above 100 proof are significantly stronger and pack a serious punch. The world's strongest liquor is a Polish rectified spirit with a proof of 192 (96% alcohol). However, the highest-proof alcohol that is legal differs from country to country. In the US, Everclear is one of the strongest commercially available alcohols, with a proof of 190 (95% ABV).
| Characteristics | Values |
|---|---|
| Highest proof alcohol that is legal | 192 proof (96% alcohol) |
| Name of the spirit | Rectified Spirit |
| Country of origin | Poland |
| Brand | Everclear |
| ABV | 95% |
| US proof | 190 |
| UK proof | N/A |
| France proof | N/A |
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What You'll Learn
Everclear: 190-proof, 95% ABV
Everclear is a grain alcohol made in the US with a 95% ABV (190-proof). It is more than twice as potent as standard spirits, and its extreme potency has given it a notorious reputation. It is often consumed in punches, leading to dangerously high blood alcohol content and potentially fatal alcohol poisoning.
Everclear has been at the centre of several controversies, including its role in facilitating binge drinking and sexual assaults on college campuses. Its high flammability has also resulted in numerous documented incidents of catastrophic burn injuries. Due to these safety concerns, the 190-proof version of Everclear is illegal to sell in several US states, including California and New York.
The manufacturer, Luxco, has faced intense criticism and legal action over deceptive marketing practices. In 2025, the company removed explicit fire warnings from Everclear's labels while promoting the product for uses involving ignition sources, such as cooking and flambéing. Several lawsuits have been filed against Luxco, accusing the company of negligence and deceptive practices, and seeking to restore comprehensive fire warnings on the product labels.
Despite the controversies surrounding Everclear, it has become iconic and culturally synonymous with college binge drinking. It inspired the name of a rock band in the '90s and has been featured in various media. However, its high alcohol content and associated risks have led to concerns about its safe consumption and the need for better warnings and regulations.
In summary, Everclear: 190-proof, 95% ABV, is a highly potent alcohol that has gained notoriety for its extreme strength and the risks associated with its consumption. Its high flammability and potential for dangerous blood alcohol levels have resulted in legal and safety concerns, leading to restrictions on its sale in certain regions. The manufacturer has faced criticism for their marketing practices and alleged negligence in warning consumers about the product's risks.
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US measurement: double the ABV percentage
In the United States, the proof of an alcoholic beverage is twice its alcohol by volume (ABV) percentage. For instance, a spirit labelled as 100 proof contains roughly 50% ABV. Spirits above 100 proof are significantly stronger and pack a serious punch.
The world's strongest liquor is a Polish-made vodka called Rectified Spirit, which has a proof of 192 (96% ABV). This is followed by Everclear, a grain alcohol made in the US, which has a proof of 190 (95% ABV). Everclear has a notorious reputation for its extreme potency and has been at the centre of several public safety controversies, including its role in facilitating binge drinking, sexual assaults, and its high flammability, which has led to many documented incidents of catastrophic burn injuries. Due to these concerns, the 190-proof version of Everclear is illegal to sell in several US states, including California and New York.
Golden Grain, which is nearly identical in composition to Everclear, is also illegal in some US states. Other strong alcoholic beverages include Bruichladdich's X4, a single malt with a proof of 184 (92% ABV), and Hapsburg's absinthe blend, with a proof of 179 (89.9% ABV).
It is important to note that the alcohol proof of a spirit does not indicate its quality. There are many high-quality spirits with low proof, and conversely, many substandard spirits with high proof. Additionally, liqueurs, such as Cointreau Orange Liqueur and Baileys Irish Cream, typically have their alcohol content measured in ABV rather than proof, with percentages ranging from 17% to 40% ABV.
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UK: adopted European scale in 1980
The concept of alcohol proof dates back to 16th-century England, where spirits were taxed based on their alcohol content. The UK adopted the European scale for measuring alcohol proof in 1980, replacing the Sikes hydrometer method. This scale, developed by the International Organization of Legal Metrology (OIML), directly indicates the percentage of alcohol in a spirit, so a spirit with 40% alcohol is labelled as 40% ABV.
Prior to 1980, the UK used the Sikes hydrometer, which was introduced in 1816 by the London brewer Abraham Sikes. This device measured the specific gravity of a liquid, which is the ratio of the density of a liquid to the density of water. The Sikes hydrometer was used to determine the proof of liquor, which is twice the alcohol by volume (ABV) percentage. For example, a spirit labelled as 100 proof contains roughly 50% ABV.
The European scale adopted by the UK in 1980 offers a simpler method of indicating alcohol content without requiring conversion to proof. This scale is also used in other countries, such as the United States, where the proof system was introduced around 1848. However, it's important to note that the calculation of proof varies across countries.
While the UK adopted the European scale, France uses a different system called the Gay-Lussac scale, pioneered by the French scientist Joseph-Louis Gay-Lussac. This scale uses degrees Gay-Lussac (°GL) as its unit of measurement, considering alcohol proof equivalent to the ABV percentage.
The highest-proof alcohol available commercially appears to be Everclear, with a proof of 190 (95% ABV). This is more than twice as potent as standard spirits, and its extreme potency has led to controversies and safety concerns, including risks of acute alcohol poisoning and its role in facilitating sexual assaults. Due to its high alcohol content, the sale of Everclear is illegal in multiple US states and carries warnings about its dangerous uses.
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France: Gay-Lussac scale, °GL units
In France, the Gay-Lussac scale, also known as alcohol by volume (ABV), is used to measure the percentage of ethanol (ethyl alcohol) by volume in a solution. The scale was introduced in 1824 to replace the Cartier scale, which was previously used for testing liquor.
The Gay-Lussac scale is calibrated so that 0% represents the level at which the instrument sinks in pure water at 15°C, and 100% represents the level at which it sinks in pure ethanol at the same temperature. This scale provides an accurate measurement of the alcohol concentration in a solution, which is essential for distillers and producers of alcoholic beverages.
The Gay-Lussac scale is often used in conjunction with a thermometer to ensure accurate readings. By measuring the temperature of the distillate, distillers can refer to the Gay-Lussac scale to determine the exact alcohol content. This dual-measurement approach is particularly useful for distillers aiming for precise alcohol concentrations in their products.
In terms of the highest proof alcohol that is legal, it is important to note that the legal status of extremely high-proof alcohol varies by jurisdiction. For example, Everclear, an alcoholic beverage with 95% ABV (190-proof), is available in some parts of the United States but is illegal to sell in others due to safety concerns. With its extremely high alcohol content, Everclear has been associated with risks of acute alcohol poisoning, its role as a facilitator in sexual assaults, and its high flammability, resulting in severe burn injuries.
While Everclear is one of the highest-proof alcohols commercially available, nearly pure alcohol products also exist. These can reach up to 200-proof, which is equivalent to 100% alcohol. However, it is important to note that consuming such high concentrations of alcohol can be extremely dangerous and even life-threatening. Therefore, it is crucial to exercise caution and moderation when consuming any alcoholic beverage, especially those with exceptionally high alcohol content.
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TSA ban: liquors over 140-proof
Liquors over 140 proof are banned from carry-ons and checked luggage by the Transportation Security Administration (TSA). This includes grain alcohol and 151 proof rum. Liquors over 140 proof are deemed to have a high alcohol content, and one of the strongest liquors in the world, Everclear, has been at the centre of safety controversies. With 95% ABV (190 proof), Everclear is more than twice as potent as standard spirits, and it has been linked to acute alcohol poisoning, sexual assaults, and burn injuries due to its high flammability.
Everclear has been described as a “date rape drug” by a University of Virginia President due to its ability to create conditions in which sexual assaults can occur. It is odorless and colorless, and those who have consumed it may not even be aware they have ingested it. The manufacturer, Luxco, has faced intense criticism and legal action for its marketing of the product, which has encouraged uses involving ignition sources. For example, Everclear has been used in cooking, flambéing, and as fuel for fondue pots and candles, which has resulted in numerous documented incidents of burn injuries.
Due to these safety concerns, the 190-proof version of Everclear is illegal to sell in several U.S. states. However, it is still commercially available in some places, and people can drink nearly pure alcohol in the form of Everclear. While a single sip of pure alcohol is not poisonous, consuming larger amounts can lead to dangerous health outcomes.
Overall, the TSA's ban on liquors over 140 proof is likely due to the safety risks associated with high-proof alcohols, including the potential for alcohol poisoning, sexual assaults, and burn injuries.
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Frequently asked questions
The strongest commercially available alcohol is Everclear, which has an alcohol content of 95% ABV or 190 proof.
While Everclear is available in some U.S. states, it is illegal in several, including California and New York. Its sale has also been restricted in other countries.
Everclear has been linked to several incidents of severe burns due to its high flammability. It has also been associated with acute alcohol poisoning and sexual assaults, especially on college campuses.
The method of measuring alcohol proof differs across countries. In the United States, a spirit's proof is twice its alcohol by volume (ABV) percentage. For example, a spirit labeled as 100 proof contains roughly 50% ABV.
