Sodium bicarbonate residue won't kill our customers, so consider it technically edible. The issue of taste and efficiency will be approached after MVP
(No, from dry-cleaning)
https://stroodles.co.uk/collections
I bought some edible cups out of curiosity a few years back. Nice for coffee. I did end up eating them all, although some of them were still dry at the time of consumption.
I think edible soap has better behaviour-adjusted shelf-life here.