DavecUK yea, after a few comments on a a different youtube video, someone ( I can only assume someone who worked on/with it) replied saying it indeed needs to be removed, so definitely not 100% biodegradable…
I can’t imagine the average person is going to go through the ‘hassle’ of peeling off a tag from their hot damp coffee cup thingy.
I think there’s the basis of a great product here; imagine an open source version where any roaster could send you a bag of beans, the brew method and grind setting got sent via Wi-Fi to the machine, and you use a simple paper filter to brew incredibly repeatable and accurately made coffee.