while true, they are effectively single use (in latter half of video, he slices open a cup, and shows cracks developing). these are, in theory, replacements for platic temporary cups. and the coffee grounds are essentially just a binder used in agar mix to harden it (kinda like adding wodden chips in some glue mix to make it hard).




yesnt. agar is not exactly the food (it is one part of the food). we usually add other nutrients as well. consider agar like a staple bread (povides structure).