Does anyone know about bottle returns at Kroger?

At the U-Scan, when you hit the "pay" button, it asks if you have any Coinstar, Coupons, or Bottle Returns.

Does anyone know what types of bottles they take, and what kind of credit you can get for what?

I've decided that I am going to make more of an effort to recycle, but I'm still going to save money where I can. ie, use grocery sacks for trashcan liners etc, and recycle the rest. I live in an apt., so no curbside pickup, so I have to make more of an effort to recycle my stuff anyway.

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