Use of alcohol in any concentration in an industrial process is acceptable
due to technical reasons where other viable alternatives are not available.
The final alcohol content in the product of such industrial application must
be reduced to less than 0.5% by evaporation or conversion to acetic acid.
This means flavors that will be used in food production must not contain
more than 0.5% alcohol to qualify as halal. Some countries, however, do
accept amounts higher than 0.5%, whereas others have an even lower cut off.