Buy a TDS meter. They cost about the same as a nice lunch menu. Dip it in your tap water, then your filtered water, then your fancy bottled water. You will immediately know what you are actually paying for. It is the most satisfying ten-dollar experiment you will ever run.
If your TDS is below 100 ppm, your water is excellent for houseplants and espresso machines. Scale buildup is minimal. If it is above 500 ppm, consider a reverse osmosis system for drinking water, or embrace the mineral punch and pair it with a glass of red wine.
Don’t obsess over the number too much. A reading of 150 ppm is not “better” than 200 ppm. The World Health Organization recommends water below 600 ppm for safety, but taste is king. Some people adore the minerality of a 400 ppm spring water.
Fun Facts to Drop at Dinner
Bottled water labels are often full of marketing fluff. A brand that costs $4 might have a TDS of 15 ppm, the same as your tap water after a basic filter. You are paying for the glass bottle and the Instagram aesthetic, not the mineral magic.
Tds Water Meter Chart – What Is A Tds Meter – FPYK
Fish are the ultimate TDS critics. Freshwater aquarium fish have very specific TDS tolerances. If your TDS is too high for your neon tetras, they get stressed. If it is too low for your cichlids, they sulk. These fish are basically tiny, finned sommeliers.
Distilled water can actually hurt your body. If you drink only ultra-low TDS water, it leaches electrolytes from your cells. This is why your gym buddy adds a pinch of sea salt to their water. They are literally re-mineralizing it for cellular happiness.
