Originally Posted by CENTURY
I have some H-1000 powder that is probably close to 10 years old. It has been stored indoors. Any problems using it?? I would hate to trash 8lbs.
As long as it still looks good and has a slightly acetone smell powder is good. I've got some mil-surp 5010 in the garage I'm using for fertilizer bacause it is giving off a sulferous odor and it is turning a brownish color and clumping. 10 years old isn't that old for powder. I've burned 50 year old powder before.