I have very hard water, Ph is 8ish, or slightly over. I find this makes a very dull and muted pu erh tea. I have been adjusting my water to get it to 6.5 – 7 and the flavour is now fantastic.
This is also, interestingly, around the PH of river and lake water in Yunnan (average 6.7 – 7.3)
Sources
https://www.tandfonline.com/doi/abs/10.1080/02522667.2017.1367501
https://www.mdpi.com/2073-4441/14/21/3385
https://pmc.ncbi.nlm.nih.gov/articles/PMC9779387/
http://en.cgsjournals.com/article/doi/10.11932/karst20220404



































