Empty the contents of one sachet into a glass of water (250ml). Stir well. The solution should be consumed within 6 hours (if kept in the refrigerator) or within 3 hours (if kept at room temperature, <25C).
Always use the recommended amount of water (250ml). If the contents of the sachet are not dissolved in enough water, there is a risk that the body will receive an excessive amount of salts.