I asked this thinking about the concept of absolute humidity and relative humidity.

I often read that the ideal conditions for a reasonably ripe Pu-erh tea is the classic formula 30° C - 70%.

Therefore, from the table I posted, it corresponds to 21 grams of water per cubic meter of air, which is broadly equivalent to a big closet.

Very similar values we can find them at 35° C - 50% (19.6) or 25° C - 80% (18.2).

But is it really necessary to have 21 grams of water, in order to mature our Pu-Erh?

If instead we wanted to reduce by half this value, for example 10 grams of water per cubic meter, would be 20° C - 60% (10.3) or 25° C - 50% (11.4).

After all, our goal is to mature our Pu-Erh making sure to prevent the growth of any molds, so we should try to maintain the value of absolute humidity as low as possible?