I recently ordered a bunch of 2500+ since Alox has been discontinued. I store lube in ammo cans and w/ the large order I needed a can just for the 2500+. The old sticks were in a can along w/ Carnauba Red and Carnauba Blue.
This is what they looked like after about three years in the can.
Obviously this is no big deal. You can touch the bags and your hands and don’t become discolored. I know the baggies are porous. The labels that they use always become the color of the lube over time as well. I never got around to having White Label mix up a batch in a custom color. This might be the poor mans way to do it. May be able to have one stick half way completed before I pass away