TokyoB wrote:As we all know, when brewing Japanese sencha each steeping becomes progressively more bitter. Is this due to release of more catechins or more caffeine or both? I also find that sometimes sencha bothers my stomach a bit, but usually only if I have 3 or 4 steepings. I'm wondering whether it is bothered merely from having more tea or if there is something released in the 3rd and 4th steepings that is more aggravating to the stomach than what is found in the first two steepings.
Does anyone know the chemistry here?
TB, I found that if I don't take Sencha or Matcha on an empty stomach, then there is not this queasy feeling that it gave me on occassion. Green tea is known to irritate some stomachs. I was a bit surprised when it happened to me as I had been drinking Chinese teas for years and it never happened with them.
I think some Japanese greens are more astringent than others. I don't know if this is from the processing or breed. Bitter is usually from overbrewing. My 2nd brew is 30sec at same temp, 3rd 45s-1minute. I prefer the Fukamushis. Sweeter.