Given time, the polymer residue will settle to the bottom and you can easily pour off most of the clean liquid. You can also use filters with some success. But [Makers Mashup] had a different idea.

There's no need for concern, though -- the residue is a harmless bit of the ... oil to rearrange themselves into a flexible and slick polymer that protects the metal from rusting and your food ...

The company has developed technology to break down the cotton in polycotton fabric while leaving the polyester intact and says this allows the polyester to be fully recycled.