seems to me that it's the same paper as the separator sheets between cheese slices. Mystery food grade paper. It's about the same thickness as waxed paper, just unwaxed.
As far as making your own patties, parchment or waxed paper or even newsprint would be adequate. I feel butcher paper is a bit too heavy, though. But that's just my opinion and it might work just fine for you.
As far as making your own patties, parchment or waxed paper or even newsprint would be adequate. I feel butcher paper is a bit too heavy, though. But that's just my opinion and it might work just fine for you.