Many of the legends like static and pressure setting powder off have pretty much been debunked as was mentioned , the powder needs heat . That heat can be generated by pressure but its takes extreme pressure to get it there . Fulminate is a different story
Plastics creating static and thus setting off the powder , has also been dispelled . Hodgdons now sells Their Goex brand in plastic containers vs. the older metal cans that Goex and DuPont used .
I actually have a couple of empty can that I have kept which when full , went through a fire which destroyed our camp . The cans were subject to enough heat that the paint burned off and the cans warped . The cans were full of powder at the time and neither went off .
As far as storage . The others have covered that pretty well . Keep the lid on tight so the powder stays dry . Keep it away from open flame or heat source and out of reach of your kids . The powder will last for ever
Plastics creating static and thus setting off the powder , has also been dispelled . Hodgdons now sells Their Goex brand in plastic containers vs. the older metal cans that Goex and DuPont used .
I actually have a couple of empty can that I have kept which when full , went through a fire which destroyed our camp . The cans were subject to enough heat that the paint burned off and the cans warped . The cans were full of powder at the time and neither went off .
As far as storage . The others have covered that pretty well . Keep the lid on tight so the powder stays dry . Keep it away from open flame or heat source and out of reach of your kids . The powder will last for ever