The evaporation test is another way to see what your tap water may leave behind. Place a small amount of water on a clean glass dish or surface and allow it to air dry naturally. After the water evaporates, check for any visible residue or marks. If you see white spots or gritty particles, it could mean your water contains dissolved minerals or contaminants. Pure water should leave almost no trace once it dries. This test is simple yet effective in showing whether your tap water carries hidden substances that may not be visible when you first pour a glass.
👉 Remember, this is just a home-based check. For a complete and trustworthy analysis of your water, getting it tested by professionals is always recommended.