I don't have them vacuum sealed or anything - just different types of pellets in the plastic bags from the LHBS all together in one big ziploc. Just wondering if I should recalculate the IBU from a lower AA% after a few months to half a year.
Not if they're frozen, the loss rate is minor.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk
So when Beersmith says Tettnang loses 40% AA% in 6 months, is that if left out in the open or in the freezer?
Check this out:http://brewingtechniques.com/library/backissues/issue2.1/garetz.html
Scroll down to "Step-by-step Instructions for Predicting a-Acid Losses"