When it comes to putting glass bottles and jars in the recycling bin, we all know glass that once held spaghetti sauce or soda pop are perfectly fine to recycle. But what about chipped wine glasses or baking dishes? What’s the harm: glass is glass, right? The reality is it’s totally different. Glass that can withstand high temperatures is considered tempered glass, which can withstand use in ovens and microwaves. When this gets mixed with glass jars and bottles, it doesn’t melt at the same temperature when it gets recycled. This contaminates glass recyclables and can make an entire load of glass basically trash. When in doubt, don’t recycle.