Wine Making
Yeasts ferment sugars to produce alcohol but to do they need some trace minerals which are present in grapes but not in most other ingredients. In order to enable them to work effectively is important that these minerals are added in the form of a yeast nutrient.
-
Vitamin B1 - pack of 100
£1.90
Also known as Thiamine, this is one of the vitamins needed by yeasts to reproduce. It occurs naturally in sufficient quantities in grapes and many other fruits, but is largely destroyed by sulphur dioxide. If a must has been heavily sulphited more B1 should be added once the sulphur has been dissipated. It is also recommended to use these in flower wines. One 3mg tablet is sufficient in 4.5l of must.
