3 simple rules
It can be eaten?
Cooked, raw or expired foods, bread, fruits and vegetables, meats including bones, etc.
Is it a garden residue?
Herbs, leaves, plants, small branches, sawdust, natural wood chips, etc.
Is it paper or cardboard?
Paper towels, tissues, pizza box, shredded paper, cardboard plates, etc.
… It goes in the brown bin!