Is Distilled Alcohol Safe for a Gluten-Free Lifestyle

Many gluten-free people wonder if Distilled Alcohol is safe for a gluten-free lifestyle. The answer? It’s complicated.

But in general, the answer is yes, distilled alcohol is generally safe for a gluten-free lifestyle with some exclusions.

I wrote this post because personally, I went through a wild ride of trying to decide if distilled alcohol was actually safe because I was still reacting! Keep reading to find out why…

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What is Distilled Alcohol?

As so eloquently put by the Encyclopedia of Britannica

Distilled spirit, also called distilled liquor, [is an] alcoholic beverage (such as brandy, whisky, rum, or arrack) that is obtained by distillation from wine or other fermented fruit or plant juice or from a starchy material (such as various grains) that has first been brewed.”

Encyclopedia Britannica

Because distilled alcohols are removed from the fermentation components, they are gluten-free.

Essentially, because proteins usually don’t make it through distillation, people living gluten-free don’t need to worry about them, unless of course, they bother you anyways and in that case, your body knows best!

Examples of Distilled Alcohol

  • Brandy
  • Whisky
  • Rum
  • Vodka
  • Gin
  • Tequila
  • Bourbon

How is Alcohol Distilled?

Distilling basically is the process of separating alcohol from other substances (like water).

Alcohols that are distilled start off as diluted versions of themselves and then through distillation become more concentrated.

Again, the Encyclopedia of Britannica breaks down the general summary of the process so eloquently as:

“The principle of alcoholic distillation is based upon the different boiling points of alcohol (78.5 °C, or 173.3 °F) and water (100 °C, or 212 °F). If a liquid containing ethyl alcohol is heated to a temperature above 78.5 °C but below 100 °C and the vapour coming off the liquid is condensed, the condensate will have a higher alcohol concentration, or strength.”

Encyclopedia Britannica

Meaning, alcohol is concentrated through the removal of other substances that aren’t alcohol found in the ferment.

This removal of substances relies on the different boiling points of the fermentation components (think water and alcohol).

Because the boiling point of alcohol is lower than water, you can bring alcohol to a boil and remove it through vaporization while leaving the water behind.

Here’s where things get tricky, depending on the type of distillation process used, the distillation process doesn’t 100% distillate.

When alcohol doesn’t 100% distillate, the original components of the ferment (what is being brewed and then distilled into alcohol) can still be found in the distilled alcohol.

This is why you can’t say that all distilled alcohols are gluten-free alcohols but often most are.

Types of Distillation

Like I mentioned before, there are many types of distillation processes available to use when distilling alcohol. Depending on the distillation process used, the alcohol may not be 100% distilled and thus, may have components of the original ferment (some of which may be gluten) in the alcohol.

Pot Still Distillation

Pot Still Distillation is often used in the production of Scottish and Irish whiskeys and French Brandies. If alcohol is distilled in a pot still, it is likely not 100% distilled and not pure.

Some argue that triple distillation in a pot still provides safe alcohol but even so there is still a chance of some remnants from the original ferment being present.

If this ferment has gluten grains, this means gluten can be left over. Thus, depending on how sensitive to gluten you are, you may still react.

Often single malt whisky and scotch are only distilled in pot stills and are often only distilled twice. Meaning depending on your sensitivity to gluten, you may react to these kinds of distilled alcohols too.

It is important to note, often when trialing these alcohols they are consumed with other additives. When trying to determine if these alcohols trigger you it’s first important to try them with safe add-in/mixes. This is to make sure you aren’t reacting to unsafe cocktail ingredients. Additionally, you should already be aware of how alcohol impacts you to make sure you don’t just have an intolerance to alcohol like me.

Rectification Still Distillation

Continuous Still Distillation

Through the use of a variety of techniques, this process allows for a pure alcohol to be produced. This happens because the alcohol evaporates up through many (we’re talking way more than 3) pot still like plates/columns. These pot still like plates help purify the alcohol.

Arguably a lot more reliable at distilling alcohols, continuous stills should remove all gluten and triggering particles from grain alcohols. This type of distillation is the industry standard which is why most people say distilled alcohols are safe and that gluten doesn’t make it through the distillation process.

Why Distilled Alcohols Aren't All Safe

Because of the different distillation processes equating to different levels of contamination, just because alcohol is distilled doesn’t mean it’s safe. It depends on how it was distilled and how your body reacts.

So just because whiskey, an alcohol derived from wheat, is distilled, doesn’t mean it is automatically safe. You should check in with the manufacturer to see what their distillation process is. Alternatively, if you’re adventurous, though not recommended, you might just go for it and see how you feel.

Additionally, distilled alcohols aren’t all safe because of other additives. Some distilled alcohols add back in the mash after distillation to add a distinct taste.

Mash is a mixture of ingredients used to start and flavor the alcohol in fermentation. When it comes to gluten grain-based alcohols, this mash has gluten in it. Meaning, when you add it back in, it will reintroduce gluten after distillation.

Some Distilled Alcohols that aren’t safe: (not an all inclusive list)

  • Bacardi Rum Silver (noted to add mash back in)
  • Jefferson’s Very Small Batch

Distilled Alcohols that might cause a reaction depending on sensitivity: (not an all inclusive list)

  • Single Malt Scotch (typically pot distilled only twice)
  • Single Malt Whisky ((typically pot distilled only twice)

Additionally, it’s important to be careful of flavored distilled alcohols. Often flavorings can have gluten (for example, sometimes malt or other derivatives are added).


Is distilled alcohol safe for a gluten-free lifestyle? Most science and celiac organizations say it’s celiac-safe. It just depends on how it was distilled, how your body reacts, and what ingredients were added back in after distillation.

But ultimately, in my book, your body has the final say. If you react poorly to alcohols distilled from gluten-containing products, then they obviously aren’t safe for you.

Want more help with gluten-free alcohol? Click here for my tips for ordering drinks at bars.