Prewash your 100% cotton or linen fabric.
Cut the cotton fabric to the desired size for your wrap. I used pinking shears to prevent the fabric from fraying.
Preheat iron to cotton setting.
Place a sheet of baking parchment paper on your ironing board or a heat-safe surface. I used a folded drop cloth on my dining table. (Use caution when doing this. My dining table is antique solid oak and it tolerated the heat. I don't recommend doing this and especially not if you have a veneer table.)
Place your fabric on top of the parchment paper. Make sure the parchment paper is larger than the fabric. (For my 25x18 piece of fabric I used for the no-sew beeswax bag, I used two pieces of parchment paper overlapping to cover the fabric.)
Sprinkle beeswax pellets or grated beeswax over the fabric, spreading it evenly.
Place another sheet of parchment paper over the fabric and beeswax. Again, making sure the parchment paper is larger than the fabric. (For my 25x18 piece of fabric I used for the no-sew beeswax bag, I used two pieces of parchment paper overlapping to cover the fabric.)
Gently press down on the parchment paper with your iron, moving in a circular motion. You will notice the heat melting the beeswax, which will be absorbed into your fabric. You can also use the iron to push around the melted beeswax, as well.
Check for any areas where the beeswax is not evenly over the fabric. Add more beeswax to those areas and repeat the process.
Once the fabric is evenly coated with melted beeswax, carefully remove the top sheet of parchment paper and lift the fabric off the bottom sheet of parchment paper.
Lift the fabric off the bottom sheet of parchment paper and hold it up or hang it for a few minutes to allow the beeswax to cool and set.