[dayofthedaleks]

Likewise, I find that home composting claims for most man made materials are claptrap as they require industrial operations with grind prep and high heat before they actually break down. Think mechanical digestors, not compost piles.

[papercrane]

The actual paper also doesn't test the biodegradability of material.

That said, they don't use anything exotic. It's just soy protein, acetic acid, water and glycerol. It would be interesting to see how long it would last in a compost pile, but I wouldn't be surprised if it broke down fairly rapidly.

https://www.nature.com/articles/s41467-021-23813-6