If you are not sure, just use a concentrated apple or graped juice instead of wine, I find it makes a good substitute, even without the %. Son's best friend is Muslim and is in and out of here like I dunno what as they also play for the same footie team. I have given up asking him what is ok to cook as he just says "Anything, Mrs. CQ, we are not as fussy as you think". He comes from a very liberal, unconformist family anyway (he has two mums and no dad ;o)), so I don't think they are too strict on food either. I have avoided pork, however ;o) But it you can cook perfectly well without wine and make things taste good, so I wouldn't stress too much.