Glass is made from natural materials, like sand, and can theoretically be recycled indefinitely. In reality, contamination and sorting/transportation logistics sometimes make it more suitable as an aggregate or filler material than for making new containers. For example, glass shards from the Hamm Materials Recovery Facility in Lawrence, KS, are added to asphalt, which increases the reflectivness of the road surface. Thus, even small pieces of glass are valuable to recycle as long as it is safe to do so.

While most of the translucent glass in your home is recyclable, note that Pyrex is not. Pyrex—or any other brand of food storage containers, casserole dishes, or other kitchenware designed to withstand extreme temperature changes—has a higher melting point than standard glass and will contaminate the recycling stream. 

The following types of glass are recyclable in the public drop-off bins (free) or at Full Circle Sustainability as part of the "premium recycling" program.

• Bottles and jars (remove plastic lids, but it's okay to include metal lids—they will be separated out for recycling)
• Candle containers (wax residue is okay)
• Glass drinkware and dishes
• Window panes, shower doors, table tops (remove hardware before recycling)

Note: DO NOT PUT GLASS IN YOUR CURBISDE BIN! It will be thrown away.