Solomon Grundy kits contain concentrated fruit juice, wine yeast, finings, wine stabiliser and wine flavouring. All the range use addbacks which go into the finished wine - this improves taste & bouquet. Only water and sugar to add. Start the fermentation on day 1, it's finished by day 5, and cleared and ready to drink by day 7. Fermenting sugar is also required and basic brewing equipment to make these fine wines.