We advise you not retain the wood pellets while in the hopper if you are not gonna use the grill for a month. Just clear away the pellets in the hopper and retail store them in an air-free bag. Summary The type of grill you use may impact the longevity https://howlongdoesa20lbbagofpell13456.wikievia.com/10951175/5_essential_elements_for_how_long_does_a_20lb_bag_of_pellets_last