sebpassion wrote:i knew that green tea should be used up within 2 months.
the problem is, that i bought 650g of 7 different teas and i would like to compare them over the week. but i don't wanna get into hurry to consume them so fast.
any opinions to glass-containers kept in a dark place?
maybe an alternative for storing the tea for a normal length?
I would advise against opening all 7 at once.
I also feel Japanese greens should be used up within 1-2 months of opening unless herioc efforts are being taken to preserve their freshness. As we approach the heating season, this will become a little less critical, but once opened, use it quickly or "share the wealth" which I do a lot of.
Glass is doable. The biggest problem with 90% of the canisters (or in this case jars) being used is they are simply TOO BIG for the job. This allows too much air exposure each and every time you open it.
For this reason, I put around half of the tea to be used in a small sample tin for everyday use (and this I then place into a Washi double lidded canister, effectively triple sealing the tea), and the rest I put into a special reserve that will NOT be opened until the first half is used up.
The reserve is triple sealed and placed back into cold storage.

I have been doing this for years, and I do not advise others to do it unless they are fully prepared to go to extreme measures to protect the "opened" tea.
This may sould extreme, but we are all generally AR/OCD about something tea related, right?
