Oof. I remember buying some store brand pre-shredded mozz once. I can’t remember what store, it was 20 years ago. We were making a few pans of lasagna or manicotti, probably manicotti I was on a manicotti kick back then. I remember after 45 minutes checking back on the pan. The cheese hadn’t melted. It browned. We’re lucky I have a damn good sauce, because crunchy cheese manicotti is an experience I only want to have once. We had guests too.