Stability of DMT in plants

[PsychoDrogue]

Lets say you have some MHRB that got stuffed on a forgotten shelf about 5 years ago. Say one of your pets shredded the bag it was in and its been exposed to air for who knows what portion of that...

How much degradation would you assume has taken place? Almost useless, still perfectly fine, or somewhere in the middle. its never been in direct sunlight or anything. dark corner of a closet.

On a similar note i have two other scenarios:

1 A jar of shredded mhrb soaked in water and placed in the fridge for a CWE. The seal on the jar wasn't great and I forgot about it long enough for everything inside to evaporate... I have a thick sold rock of reddish brown material that has a slight sparkle to it when the light hits it right.

2 A jar of shredded mhrb soaked in water as above but no seal problems. there are no obvious contaminates that have accumulated from water sitting for so long. the jar has been left at room temp for extended periods of time and has been in the closet for a month now.

I dont really enjoy the process of getting these items down so i'd rather not try and make anything with em if i'm just gonna get a bunch of nausea with no trip.

Any hardcore neglecters try the stuff they think has been around too long?

I also have a bag of syrian rue seeds that is also 5 years old. I doubt they've lost much, but for the sake of it while i'm here, is harmine or harmaline stable enough to last that long as well?