I've noticed something strange that I experience from some Chinese green teas.
The second after I take a first sip, a small burp happens (or just the feeling that my stomach/sound that my stomach has been unsettled. It's like a slight unsettling of the stomach. And it continues to happen while I consume the tea.
I don't experience this from Japanese green teas (which I brew with more leaf) and I don't experience this from all Chinese green teas, but with many I do.
If this is just some strange reaction that has no bearing on health: I can live with it. However, if it's an indication of excessive pesticides or the tea being produced in unsanitary conditions, then I have a problem.
But since I've experienced this phenomenon from various Chinese greens, I doubt it's a pesticide issue. However, it could be a sanitary issue.
Has anyone else experienced this phenomenon with Chinese greens and does anyone have any theories on it?