What is the man looking for?

Man: Could you tell me where you keep the paper cups? I’ve looked everywhere, but I can’t seem to find them.
Woman: There should be some in the cabinet over the sink. That’s where we usually keep them.
Man: I already looked there. You must be all out of cups. I guess I’ll have to go down to the coffee shop and get a cup of tea there.
Woman: Oh, you wanted hot drink cups, not water cups. I have some right here in the supply closet. There’s sugar in here, too, if you want it, and there’s milk in the refrigerator.
Man: OK, great. Thanks. Now, is there something I can use to heat the water up in?