Salaam,
This sounds similar to the Streets Ice cream situation (yep, those yummy Magnums). The gelatine they use is halal accredited and states "halal gelatine" on the ingredients, so was happily eating a magnum till i found out the following from their website (after a sister advised me she refuses to eat Streets icecream, i got confused saying the gelatine is halal, but she said, thats not the problem...)
http://www.streets.c...x.asp#Question4
There is a small amount of alcohol present. Alcohol is a very important component of many flavours used by us - especially natural flavours. It is used to extract the flavour components from various natural ingredients. For example, vanilla flavour from vanilla beans, or strawberry flavours from strawberries. As a result there is always some alcohol present in these flavours when they are added to ice cream. Much of this alcohol would be evaporated during processing, but a small amount may remain. However, the level of alcohol in the final product is extremely low (much less than 0.1%). In some cases there are alternative flavours we could use, and where applicable we do. However, in the majority of cases we tend to use the alcohol based material for the following reasons: 1. They are usually natural flavours. 2. They have a far superior flavour delivery and are of higher quality. 3. There is no significant reason for not using them. Most, if not all, of our products will have these small levels of alcohol in them.
I asked a Imam about it, is it haram to eat Streets icecream, and he told me that scholars have two schools of thought basically, some say its ok to eat it since it such a minute amount of alcohol and used as preservative etc, and the amount is so tiny its insignificant than others say its haram, because we have other altneratives out there that do not put alchol in their flavours as preservative etc, and that no matter how much tiny the alchol amount is, its still haram...
so basically personally am confused about the situation, whether halal or haram