I was reading the water sourcing thread in the discussions, and it made me start to question the water I use for making my tea. See, I have a sink in my office that bascially was never used before I moved in, but the water that comes out of the regular tap is disgusting, often slightly brown or yellow. Also it is clearly extremely hard because a slow drip has left the inside of the black sink covered in a whitish scale that doesn’t respond to any kind of acid. I wouldn’t even want to drink it after running it through a Brita filter. My whole time here I have always drank the deionized water that comes out of the other tap; it’s clear and tastes fine. It’s also what I use to make all of my teas. But deionized and/or distilled water is supposed to be really bad for making tea because it’s very “flat”, lacking dissolved ions from minerals and such. I find it hard to believe that the water I am using is very deoxygenated because it comes out of the faucet with such pressure that it must immediately reoxygenate itself, and I don’t know for a fact that the water is truly deionized; someone in my department tested it from a different faucet and found that the pH was off from neutral. Anyway, I started thinking about how it would affect my tea, so I wanted to try a back to back with it and some bottled water I had left over at home from the “hurricane” a few months ago. I wanted to try a somewhat delicate tea I thought might show off the differences, so not a heavy black or something, but also a tea that was inexpensive enough and that I had in a large enough quantity. This fit the bill, so it will be my guinea pig tea.
All of these cups are brewed identically except for the water source (new leaves each time of course), so I’m putting them all in this note. First, the “deionized” water from the tap. This is my baseline, so right now it just tastes like it always does. Floral, a bit vegetal. When I had this tea a while ago it was still early in my oolong journey, and coming back to it now is interesting; the buttery sweetish flavor that I really love finding is only very faintly present. I do still really enjoy how floral this is and the magnolia, which is such a lush, rich floral.
Next, bottled water (Dasani, “purified and enhanced with minerals”). Can I tell a difference? Yes. Is it super dramatic? I am relieved to say no, not to me. The flavor is a bit brighter, somehow, like this water brought out the “greenish” notes more. I can’t even say that I prefer this water; I like the bolder florals I got with the first cup. Also I can kind of tell that this bottled water is harder than my DI tap water, but the extra minerals weren’t necessarily an improvement to my tastes. Like I said, I don’t know that the water is actually deionized that’s coming out of my tap, so it may not be as “flat” as it normally would be, but I don’t think it’s seriously affecting the taste of my teas, and that’s really what I wanted assurance of.