That would be a good way to tell them apart. [He's committing all of this to memory, because these are good points! If not apples, then at least something similar to them. Once they've mastered basic gels, he figures they'll get back up to speed and make more varieties.]

I wasn't planning on skipping the flavor. Don't worry. I figure for now, I'll use what I have and see if I can buy Apple flavoring somewhere.