Hello, I’m still fighting with the bugs, but these are my current tests and conclusions:

Put the tea on a sunny surface and control humidity.
Has no effect over bug population.

Put the tea in a bag and add some food dissecant and oxygen remover bags.
After two week population of bugs decreased, but eggs (wherever they are) survived, as soon as the tea has some oxygen (even with low humidity) bugs reapear suddenly.

After some research, these bugs are not a health threat, and I decided to taste the tea.

The tea not only tasted good, bug eaten tea seems to taste stronger and mellower, I will say that tastes slightly better.

Bugs live inside tea, and I never found a single one on the bag.

I put a part of the tea on the fridge, and below -15° bugs and eggs died, but also the tea was partly ruined.

If you can live with the bugs, use 2 plastic bags or silicone bags to avoid them to colonize all your home.
If you can’t live with bugs put tea with some food dissecant and wait for 2 weeks, if bugs still remain, throw it.

Note that in my case bugs come with tea.
I revised all my teas (over 70 cakes).
Only this and other had bugs. The other was a shu pu er loosely compressed that comes from a humid warehouse.

So getting teas from kumming will be a hint to avoid bugs.

Thanks ! In fact I live in a very humid place in the mediterranean coast. I’ve put two denumidifiers and temperature-humidity sensors in the area where the tea is stored. Tea seems to taste ok, but I discarded it. Today after cleaning yixing, I come to the sealed bag where thre rest of the tea was stored and the bugs are there. They seem to come with tea and eggs hatched at spring… I will try to let it air and register humidity on tea. I will tell the results. Thank you !!

You mean you stored it inside a Yixing pot without paper? In that case, it shouldn’t get white paper bugs. Perhaps the Yixing pot is stored in a humid place? I would take out the cake, remove all the bugs, let it air for 2 hours. Then store it sealed in a zipper bag in a dark closet for a week. This will allow the cake to dry. Afterwards, put it back in the Yixing pot (cleaned of course) and place it in a less humid place.

Note: if the cake tastes off, then it might have gone bad. In that case you’ll unfortunately have to discard it.