Fruit concentrates usually, like lemon, blackcurrant, orange etc. squashes, but also cordials made from various herbs and spices, roots, etc. If you're in the

Fruit concentrates usually, like lemon, blackcurrant, orange etc. squashes, but also cordials made from various herbs and spices, roots, etc. If you're in the UK, there's normally a two or three metre section of shelving dedicated to them in the supermarket.