Alcohol in food: what counts?
"Contains alcohol" covers several different things, and they do not share one ruling. A liqueur filling is not the same as the ethanol that carried a flavouring into a biscuit.
Short answer
Alcohol added deliberately as a drink ingredient, such as rum, wine or Marc de Champagne, makes a product not Halal. Alcohol used as a carrier for a flavouring is treated as doubtful, and clears only where the maker confirms it is not wine-derived and only in traces. Vinegar is a separate case and is treated as clean.
Added alcohol: not Halal
When a recipe calls for an alcoholic drink as an ingredient — rum in a truffle, beer in a batter, wine in a sauce, Marc de Champagne in a praline — the app marks the product not Halal and names the ingredient. This is the clearest case and needs no verification step.
Flavour carriers: doubtful
Many flavourings are dissolved in ethanol so they can be dosed and dispersed. The label writes "flavouring" or "natural flavouring" and says nothing about the carrier. Here the app says doubtful rather than choosing for you, because the amount is usually tiny and scholars differ on traces that are not intoxicating.
Where a manufacturer confirms in writing that the carrier is not wine-derived and is present only in traces, that specific product clears.
Vanilla extract
Real vanilla extract is made by steeping vanilla pods in ethanol, and the ethanol stays in the bottle. This is the most common reason a baking product lands as doubtful. Vanilla flavouring, vanillin and vanilla sugar are usually alcohol-free, and the app distinguishes them.
Vinegar
Vinegar is produced by fermenting alcohol into acetic acid, which is a chemical change, not a dilution. The classical position treats vinegar as permissible, including wine vinegar in the view of many scholars, and the app treats it as clean rather than flagging it.
Common questions
Is vanilla extract Halal?
It contains ethanol by design, so the app marks products with real vanilla extract as doubtful. Vanilla flavouring and vanillin usually contain none.
Is a rum-filled chocolate Halal?
No. Alcohol added as a drink ingredient makes the product not Halal, and the app names the ingredient that caused it.
Is wine vinegar Halal?
Fermentation into acetic acid is a real chemical change, and the classical position treats vinegar as permissible. The app does not flag it.
What about alcohol-free beer?
Read the declaration: many still contain residual alcohol. The app reads what the pack declares rather than the name on the front.