Why is instant coffee no good?
I have seen some instant coffees that have additives including sugar, maldodextrin, flavours etc. Probably why Elaine said that instant is illegal.
Does that mean if the coffee says 100% coffee it's ok?
Weak coffee from ground whole beans is legal.
Instant coffee is not legal. It may be because we don't know what kind of processing aids, flavourant, and/or additives are added during processing, and are not listed on the ingredient list.