But the paper the butter/lard is packaged in contains PFAS/plastics, or you can use something else... packaged in plastic! The entire supply chain is polluted in the name of efficiency/cost (reduction of spoilage, less weight etc) and most people live in the most populated places where it's not possible to source diary directly from the animal in to a glass receptacle. A personal change to use glass is something I'm doing and many might want to consider, but so much of the problem is systematic. "Just use glass" is good, but insufficient.