In Search of Rich, Mineral Water…
Mineral richness in water is important!
According to certified water sommelier, Martin Riese, water from vending machines and convenience stores (pure water) has almost no minerals and you should not drink it.
* Netflix “Down to Earth with Zac Efron” Episode 2
Pure water doesn’t have minerals. You need minerals in drinkable water!
There is an index called TDS (Total Dissolved Solids). The concentration of mineral components (calcium, magnesium, potassium, sodium, bicarbonate, chloride, sulfate) dissolve in water.
TDS is displayed in units of ppm. ppm is displayed at 1ppm when 1 liter of waters contains 1,000 grams of mineral components. Normally, the TDS value of pure water is 1ppm, and it can be said that the numerical value is low, and the impurities are low with no necessary mineral content. Until now, there has been a misconception that the low numerical value is good.
You hear impurities as something dirty, but mineral content (=hardness) is also included, so it cannot be said unequivocally that high numbers are not good.
Japanese tap water ranges from 100 to 160ppm, and the average soft mineral water is 60-70ppm (hard eater is more).
You can buy the famous water from UK “HILDON” in Japan as well (312ppm sparkling water).
I drink it, and it’s delicious.
Also, you can buy a TDS measuring instrument on Amazon for under ¥2,000!
Why is There a Difference in Taste of Water? Water types and Classifications (Japanese)
There are Even Varieties of Pure Water! Let’s Learn the Differences of Water (Japanese)
Harmful Metals and Minerals (Japanese)
“Notification of the Assessment of Food on Health Results” Food Safety Commission of Japan (Japanese)
Mineral Amount and Water Hardness, the Difference Between Hard and Soft Water by Evian (Japanese)