Water to Mix With the Formula

• Most city water supplies are safe for making 1 bottle at a time. Run the cold tap water for 1 minute. Don't use warm tap water. (Reason: to avoid potential lead exposure). Heat cold water to desired temperature. Add this to powder or formula concentrate.
• EXCEPTIONS: Untested well water, city water with recent contamination, or your child has decreased immunity.
• For these situations, use distilled water, bottled water, or filtered tap water.
• Another option is to use city water or well water that has been boiled for 10 minutes (plus 1 minute per each 1,000 feet or 305 meters of elevation).
• Bottled water is more expensive than distilled water.
• For preparing a batch of formula, distilled, bottled or boiled water is required.