I've been keeping a 2008 Haiwan 968 tuo in 70% humidity and around 20-22 C° for 3 or 4 months now. Sometimes the humidity goes up when I forget about it (but only for a few hours). When I first got this tuo it had a lot of fermentation flavour despite its age but it's gone now or I'm just used to it. What I noticed last week is that this tuo tasted too sweet like sugar. I didn't measure it but I think I put around 10g in a 100ml gaiwan. Yesterday I noticed the tuo had white dots in a place, not many though.
Looks like this (click for higher resolution):
Closer:
Can't really make better photos with phone.
Are these a start of something bad or nothing extra? I know yellow mold is usually bad but it's totally white and just dots, not the usual mold that's on a 2 weeks old bread.
Today I received this:
It had similar dots but only in a small area.
Of course with closer view they aren't really dots. False colour might be because of the lamps and bad phone camera but these things are actually white.
I will drink the teas anyway. Well, not the 968 because I don't like that, I just use that for testing storage conditions and it doesn't seem to be bad so far. If it's normal then I suppose there's nothing to change regarding storage. I just wanted to ask, better safe than sorry.
