Yes, tea bags can go in there. A couple things to make sure of first though: 1) make sure it is the paper bag kind of tea bag, not the plastic netting ones. The plastic ones are usually triangular. If they are the plastic kind, you can open them up and put the leaves into your organics bin, but the plastic part must be disposed of in the garbage can. 2) If your tea bag has a small metal staple on the top, remove that beforehand putting it in the bin.