do test powders go bad

[gymrat]

Just curious if you kept the powders (not yet converted) in a cool dry place if they go bad at any point.

 

[cybersteffan]

I don't know for sure but I guess they eventually will. Probably will take several years though.

 

[superman1975]

thats a good question? do they--just in case i get the never up to make some prop or something?