Well I can say what I saw in the south of Bahia, a humid region …
I saw descendants of fugitive slaves (“quilombolas”), planting in plastic bags at the top of the trees, to disperse, They dried in the sun and then rolled up in newspaper …
In semi-arid regions, I believe that they have no problem with drying.
The other methods would be drying and pressing bamboo, with honey on the edges …
I just did it by pressing it with a bicycle tire rubber.