BWT 경도 및 총경도 측정 수질 테스트 키트

Tested three different tap points in the house and the strips gave clear, easy-to-read results each time—took maybe two minutes total before brewing my espresso. Wish I'd done this a month ago, would've saved me from descaling my machine twice.

Finally got around to checking the hardness before buying a new espresso machine, and the little test strips were surprisingly easy to read. The color chart on the back made it obvious our water is in the medium range, so I can pick the right filter now. Took maybe five minutes total and feels way m

Tested our tap water before installing a new espresso machine, and the results were clear and easy to read within minutes. The included hardness chart made it simple to understand exactly what filter we'd need.