The first step in choosing milk powder and water is to choose the appropriate milk powder and water. When choosing milk powder, it depends on your baby\’s age and health. Different brands of milk powder have different ingredients and nutrients, so choose a brand that is suitable for your baby. Water is also very important. It is best to use mineral water or purified water and avoid using tap water. In addition, the brewing amount of milk powder should be accurately calculated according to the proportions in the instructions, and should not be overly diluted or concentrated. Over-dilution can lead to nutritional deficiencies, while over-concentration can overburden the digestive system and even cause diarrhea. Prepare bottles and nipples for drying