I know you do not wish to g against a customer BUT
The standard rate of VAT applies to certain items of food and drink which are excluded from the scope of the zero rate or the reduced rate, such as the following:
Alcohol, bottled drinking water, soft drinks, juice extracted from, and other drinkable products derived from fruit or vegetables.
Ice cream, frozen desserts, frozen yogurts and similar frozen products, and prepared mixes and powders for making any such products or similar products.
Savoury products made from cereal or grain, pork scratchings, and similar products such as vegetable crisps, prawn crackers, poppadoms.
Potato crisps/sticks/puffs and similar products made from potato, potato flour or potato starch.
Popcorn, salted or roasted nuts.
Biscuits and wafers wholly or partly covered or decorated with chocolate or similar product.
All kinds of chocolates, sweets and similar confectionery