Casein plays an important role in the meltiness of cheese[1] so it makes sense they'd want to replicate it (lots of almost-but-not-quite-vegan cheese alternativ

Casein plays an important role in the meltiness of cheese[1] so it makes sense they'd want to replicate it (lots of almost-but-not-quite-vegan cheese alternatives like Trader Joe's almond cheese have ~1% casein in them for this reason). 1: https://www.finecooking.com/article/the-science-of-melting-cheese https://www.finecooking.com/article/the-science-of-melting-c...