VFOOD7540 | Excepted items: beverages: preparations and extracts
From HM Revenue & Customs · VAT Food
The zero rating conferred by items 4-7 of the items overriding the exceptions extends to preparations and extracts of the specified beverages as well as the beverages themselves. This means that such preparations and extracts will be zero-rated, provided they remain foods within general item 1: if they are not foods, they are standard-rated. Examples of zero-rated preparations or extracts are:
Camp coffee;
drinking chocolate; and
Bovril.