Hmmn, I'm pretty certain that the alks in the bark are caught up in a more stable salt form. I don't think that the salt is very prone to oxidation. Not that I'm a chemist or particularly clever, but if there is a difference over three years, it seems negligible.

So what about the most obvious, how long does freebase dmt last in a 20 C room? while in a normal airtaight containe and dark room. Dont really want to convert to furmate.

Is furmate smokable? Or do one have to convert it back into freebase

So like a good nexian I referred to the FAQ section first to figure out the best way to store my goodies. I don't do it very ofter, maybe once a month if that, so I wanted a way to keep freebase xtals stored as long as possible. I don't have a vacuum sealer and don't want to convert to fumarate salt. So taking the basic concepts; dark good, cool good, air bad I came up with this poor man\lazyman solution. I'm willing to bet it will last for years this way. Here's what i did.

I made individual Cryo PakTM

took non-bleached parchment paper and cut them into 2 inch squares and made tiny bundles with approx 50mg doses
then tightly wrapped those in 3 inch tinfoil making sure to get them nice and flat no air
then folded a piece of packing tape around that making sure to squeeze out any air and then trimmed off the extra tape.
then that all went into a ziploc bag with air sucked out of it and into the freezer

SO what do you guys think, this should keep for a very long time don't you think. When i want some, i just take one out, let it warm to room temp (to avoid any condensation) and then unwrap my special little Cryo Pak TM and ENJOY!

here's the pictorial