CoffeeGeek (npub1ep8…29a5) this is the test result from mixing one gallon of distilled water with a small packet of Third Wave Water’s espresso machine formulation. If I recall correctly, the SCA says you should be between 35 and 85 ppm? I guess I’ll try half a packet. I’m also curious to test the output of a Brita filter. #coffee #espresso coffee group (npub1adp…tyak) espresso group (npub1m5z…mdw7)