If it is preparing with water, for 1 kg powder whipped cream, in summer 1.5kg/in winter 1.75kg of cold water (5-8℃) should be added. If it is preparing with milk, in summer 1.75kg/in winter 2kg cold milk (5-8℃) should be added. After mixing about 4-5 minutes, it should be kept waiting about 15-20 minutes in fridge. It is used directly.