Hello TOXIN.  This is the info I found in FAQ: "For oral usage of mimosa, formation of n-oxide wouldnt really affect much as it will be water soluble so one will still get the effects when consuming the brew."

I therefor understand now (I think) that for oral consumption, there really is no loss in efficiency and for that reason the MHRB can be stored indefently in a cold, dark, dry place. And of course as long as nothing strange grown on it like a alien fongus or anything.

This makes me also reason that frezer and air tight is also not needed if oraly ingested?

For smoked I guess this might be a differnet story.

Im looking for storing it for up to 10 years. In case the laws change and I can get it anymore...

Thanks again for your contribution!

Ed