One Good Thing By Jilleehas a full guide at the link below, but the process is pretty simple.

Put unbleachedmuslin clothon a cookie sheet.

These food wraps should be more useful for transporting foods than plastic wraps that can tear easily.

Plus, they are water-resistant to give you added protection.

For a little investment now, these reusable wraps might end up saving more money in the long run.

DIY Reusable Food Wrap| One Good Thing By Jillee