The kefir water and ginger starter packs arrived fairly quickly despite all the problems created by Covid-19. It is necessary to download the instructions and they could be a little clearer. We were confused about what is meant by 'second fermentation'. Is it the same water that is fermented again or does it mean using the grains to make a second batch of drinks using new water? Nevertheless a good service given the complications of posting out 'live' products. We're regularly producing batches of fizzy drinks for nothing more than a spoonful of sugar to feed the crystals. No need for CO2 cartridges or soda makers.