When I was young me and my father talked about food. I asked him if there's food we can't eat but put in things.
He eventually said "Lemons."
I noticed he doesn't use the whole lemon and asked him, because of my strong eyes and the way the lemon looked in his hand. "Do you think that sometimes a bitter taste can be enjoyable?" I told him to put the lemon peel in hot tea, he drank it right away. I told him to do it again but to wait until some of the lemon peel absorbs into the tea. He tried it and he liked his tea.
We continued talking, "What about other peels, dad?"
I continued speaking.
"Orange peel. Green apple peel, anything from a citrus fruit."
He said "What about a banana peel?" I replied "For some reason I don't think this would make tea good."
He tried it anyway and didn't like his tea. He took my advice about making caffeinated drinks better after.
P.S. I told him that I don't think lemons are fully citrus, because there would be no way for the tree to grow them. I asked him what would happen if he left the lemon peel in his tea for a bit longer. Eventually it tasted sweet. He never drank it, I took a sip.
I walked in the room where my parents were laying and told them. "I understand that tea needs to be drank, because it could expire, but what if you waited for it to cool with the lemon peel in it, put it in the fridge in a bottle, and drank it later with ice. I tasted the tea you left when you were angry, because you didn't believe me. It tasted sweet. It didn't even need sugar."
My parents smiled and I went in my room to rest after drinking exactly two drops of tea from his clear glass cup.