I don't know whose sign this is, but I was mystified by "no bread" on the no compost side, and wondering about the no "compostable container".

[ai6yr@m.ai6yr.org]

I don't know whose sign this is, but I was mystified by "no bread" on the no compost side, and wondering about the no "compostable container". #compost

[fiddlesix@zeroes.ca]

@ai6yr

Then, there's Dixie paper plates, compostable, except in California!

[dianea@lgbtqia.space]

@FiddleSix @ai6yr

I was devastated when I learned all "paper" plates and cups had a thin layer of plastic coating. And aluminum cans have a plastic liner inside too.

Pour boiling coffee into a "paper" cup? That plastic liner was shown to fracture and burst out clouds of microplastics.

[datum@zeroes.ca]

@dianea @FiddleSix @ai6yr

I was devastated when I learned all "paper" plates and cups had a thin layer of plastic coating. And aluminum cans have a plastic liner inside too.

and

Guessing that means "it's not actually compostable, but California won't let us lie about it."

Came here to bring this up. That sheen is almost certainly a plasticized layer, possibly also with with PFAS for greater water and grease repellence:

Single use plates can contain PFAS ... “Molded fiber products, such as plates and bowls, use PFAS to provide a grease and moisture barrier so that oils and liquids don’t seep through the products.” Forbes

[thepolishdispatch@mstdn.social]

@dianea @FiddleSix @ai6yr I wonder if anyone looked into how much microplastic is being released by dish washing sponge scourers - I can certainly notice them disintegrating. And I have observed that when I wash plastic containers in my dishwasher they end up with a thin misty coating of delicate dust, which has the same color as plastic elements inside dishwasher chamber.