How come you are in a position to educate Muslim mothers?
Sometimes I see some Muslim mothers trying to read the small print of the packaging so help them out that way. Also some get confused by the amount of alcohol - they are allowed if it is in trace amounts or if it boils off during the cooking process. There are so many trace things in the foods we eat - it has no physiological effect - but for completion it is often specified in the ingredients.
The important thing is that it is in such minor amounts that it has no physiological effect. During the times of Mohammad and the Islamic Conquests when heads where being lopped off left right and centre the banning of alcohol was meant to be that found in quantity in barrels or bottles and that which caused drunkenness - not good if one wants to have their armies of clear mind and present for battle as well as for the lopping off of heads of prisoners and the naughty.
I very much doubt the average Muslim woman would welcome a strange man muscling in on them in Asda when they are choosing what to have for tea.