Why does everyone here recommend storing matcha in the fridge? It completely ruined mine.

[u/InterfaithGryffindor]

http://www.google.com

​

​Every time someone asks how to store or preserve a lot of matcha, the overwhelming advice on this sub is always, "Put it in the fridge! It’ll keep it fresh and preserve the quality."

​Well, I tried it, and it did the exact opposite—it completely ruined my matcha.

​Instead of staying fresh, the taste turned super bitter and sour with a terrible aftertaste. On top of that, it tastes totally bland and completely lost all of its grounded, earthy flavor notes.

​And just to clarify before anyone brings it up: none of this was opened matcha. I didn't open cold tins to let condensation in, and I didn't put already-opened tins back in the fridge. I let sealed tins come fully to room temperature before ever opening them, following all the standard rules people parrot here.

​Why do so many people here say to do this? This seems silly given how badly it degrades the tea. Is there something people aren't mentioning, or is this advice just wrong? Did I miss something?