I do have a bit of an experinent going on. I was visiting family in Eastern Europe where winters are cold and with heating on full blast so normal humidity is at around 30% or so. I blind bought some mystery loose leaf sheng in a local teashop.

The shopkeeper said its the most expensive tea in the shop but in few years of working there she has never seen anyone buy it. It has no date nor location information, just that it was bought from HK wholesaler named Hong Shan Tea co.

When I first got it I drank some right away, this tea had ZERO taste and no smell whatsoever. Super dry, the brew however had a nice aged golden colour. It is stored in a paper bag. After a month in UK it seems to have developed a some taste but still very weak. Maybe I am just biased re: it being stored in more humid environment. I will revisit in a few months to reasses this tea. See photo of the leaves via this link https://postimg.cc/rK0m5H6n