how to store beans in a tropical country?

got silica gels in my bean stash are 3 packs enough? hoping the rainy season stops so the humidity will be 40-60%

try this... Seal it inside ziploc bags... get a 5gal tub fill with sand 1/3 rd then add bags of beans.. then add more sand add cool water to the sand
this is a method preppers use for their storage

Freezer? I hear you'll more than likely lose a few beans just by the nature of the freezing process, but the majority should be fine, maybe all of them, and they'll stay good for awhile. I wanna point out I've never done it myself though, all heresy.