Does Alcohol Cook Off?

Five percent can still remain after 2.5 hours of baking or simmering with alcohol stirred in, according to USDA alcohol-retention data. Cooking reduces alcohol. It does not automatically remove all of it.

That is the answer. The amount left depends on the method.

The USDA numbers

The USDA retention table gives percentages of the original alcohol retained after common preparation methods. The figures come from USDA's Table of Nutrient Retention Factors, based on alcohol-retention research by Augustin and colleagues.

Preparation method	Alcohol retained
Alcohol added to boiling liquid, then removed from heat	85%
Flamed	75%
No heat, stored overnight	70%
Baked, alcohol not stirred in, 25 minutes	45%
Baked or simmered with alcohol stirred in, 15 minutes	40%
Baked or simmered with alcohol stirred in, 30 minutes	35%
Baked or simmered with alcohol stirred in, 1 hour	25%
Baked or simmered with alcohol stirred in, 1.5 hours	20%
Baked or simmered with alcohol stirred in, 2 hours	10%
Baked or simmered with alcohol stirred in, 2.5 hours	5%

The first three figures are the ones that surprise people most. USDA data indicate that alcohol stirred into a hot liquid and then removed from heat retains about 85%, a flamed dish about 75%, and a dish stored overnight with no heat about 70%.

The long-cooking figures are lower, but lower is not zero.

Why it does not all burn off

The old kitchen line is too simple: "The alcohol burns off."

Some alcohol evaporates with heat. How much stays depends on time, heat, whether the alcohol is stirred in, surface area, other ingredients, and whether the dish is covered or open. The USDA table does not turn cooking into a single yes/no switch. It shows a gradient.

That gradient is the practical point. A splash of wine in a pan pulled off the heat is not the same as a stew simmered for hours. A flamed dessert is dramatic, but the USDA figure for flamed dishes still leaves most of the original alcohol retained. A no-heat preparation, such as a dessert or sauce that sits overnight, can also retain most of the original alcohol.

The word "retained" matters. The USDA figures describe the share of the original alcohol that remains after that method, not the alcohol level of the finished serving. A small amount of alcohol in a large pot and a larger amount in a small sauce are different starting points. That is why the table is useful for direction, but not for serving-by-serving math.

What about wine sauce, beer chili, cooking wine, and vanilla?

Use the same frame for all of them: alcohol-containing ingredients can leave alcohol behind unless the preparation removes it, and removal is usually partial.

A wine sauce simmered briefly may retain a meaningful share of the original alcohol. A beer chili cooked longer may retain less. Vanilla extract in a baked item depends on the recipe and cooking method. A no-bake dessert with extract is a different question from a cake baked in a hot oven.

The table gives retention percentages, not a serving-by-serving blood-alcohol estimate. Do not stretch it into "how many drinks are in my pasta" math. Recipes vary too much, and portions vary too much.

This is also why "but it was cooked" is not a complete answer for someone who needs zero alcohol. The better question is more specific: what alcohol-containing ingredient was used, how much went in, how was it cooked, how long did it cook, and does any residual amount matter for your reason for avoiding alcohol?

If you are avoiding alcohol

The cooking question is often really a boundary question. Does the wine in the sauce count? Does the beer in the chili count? Does vanilla extract matter?

That answer depends on why you are avoiding alcohol. Personal preference, recovery, pregnancy, medication interactions, religious practice, and medical conditions can all set different standards. The USDA numbers can tell you that some alcohol may remain. They cannot tell you what your standard should be.

If you are cooking for someone else, ask rather than assume. "There is wine in the sauce" is a clearer sentence than "don't worry, it cooks off." The other person may not need the warning, or they may be grateful for it. Either way, the information is cleaner than a reassurance the data does not fully support.

The same residual-alcohol idea shows up on packaged drinks. Under federal labeling rules, "non-alcoholic" is defined against a less-than-0.5% ABV threshold rather than meaning zero alcohol, while "alcohol free" is reserved for products containing no alcohol. For that drink-labeling version, see does non-alcoholic beer have alcohol and does kombucha have alcohol.

If you are managing your drinking and food with alcohol keeps feeling like a loophole, cue, or argument with yourself, bring that pattern to a clinician or counselor.

The bottom line

Cooking lowers alcohol most when it is heated for a long time with the alcohol stirred in. Even then, USDA's 2.5-hour figure is about 5% retained.

That small remainder may not matter to some people. It may matter a lot to others. The data can show what remains; your reason for avoiding alcohol decides how much that matters.

The practical close is simple: do not rely on the phrase "cooked off" unless you know the method. If alcohol was added late, flamed, used without heat, or simmered briefly, the USDA figures suggest a larger share can remain. If the dish cooked a long time with the alcohol stirred in, less remains, but not necessarily none.

For a restaurant or hosted meal, the plainest question is enough: "Was alcohol used in this?" You do not need to explain your reason. If the answer is yes and the amount matters to you, choose something else or ask whether there is a version without it.

FAQ

Does simmering remove all alcohol?

No. USDA data show about 40% retained after 15 minutes of baking or simmering with alcohol stirred in, about 25% after 1 hour, and about 5% after 2.5 hours.

Does flambe burn off alcohol?

Not all of it. USDA retention data list flamed dishes at about 75% of the original alcohol retained.

Is food cooked with alcohol okay if I am not drinking?

That depends on your reason for avoiding alcohol and your own support or medical guidance. USDA data can tell you some alcohol may remain; they do not set your personal boundary.

This article is general education about USDA retention data, not advice that a specific dish is acceptable or unacceptable for recovery, pregnancy, medication use, religious practice, or any medical condition.