Can I still drink water that has been heated over milk

Water that has been heated over milk is generally drinkable, but it is important to note that milk residue may affect taste and hygiene. After heating milk, the evaporation of water will concentrate some components, and repeated boiling may produce a small amount of sediment or coking substances. The remaining moisture in milk after heating usually does not produce harmful substances, and the main components are still water molecules and trace amounts of lactose and protein. If this type of moisture does not show obvious discoloration, clumping, or odor, it is safer to drink. Some individuals may be sensitive to residual lactose and may experience mild gastrointestinal discomfort after consumption. If metal vessels are boiled for a long time during the heating process, there may be trace amounts of metal ions dissolved, but the impact on health is relatively small.

When milk is heated, a burnt phenomenon occurs, and the brown substance attached to the inner wall of the container contains carbonized protein. At this time, residual moisture may have a bitter taste. When using a microwave to heat milk, local high temperatures may cause lactose crystals to precipitate, resulting in the remaining liquid appearing cloudy. In such cases, it is recommended to discard the remaining liquid and avoid ingesting protein components that may denature.

It is recommended to control the heating temperature of milk to 60-70 degrees Celsius for daily consumption, and avoid repeatedly heating the same batch of milk. The heated container should be cleaned in a timely manner to prevent protein residue from breeding bacteria. Lactose intolerant individuals can choose to completely boil milk and separate whey, or directly drink milk packaged at room temperature. When infants and young children drink heated milk, they should ensure that the container is thoroughly disinfected for residual moisture.