Wash and dry your cotton fabric, then iron if necessary.
Cut the fabric to size.
In a pint sized mason jar or heat safe bowl, add the beeswax pellets, pine resin and jojoba oil, then place the jar in a pot with enough water to go above the top of the ingredients in the jar. Turn the stove to medium high heat and allow the ingredients to fully melt, about 30-40 minutes. You may need to add a washcloth to the bottom of the pot to ensure the glass doesn't break.
In the meantime, cover a large baking sheet in aluminum foil or parchment paper and lay one cut piece of fabric on top and pre-heat the oven to 200°F.
Once all the ingredients are fully melted, dip a clean paintbrush into the mixture and paint it evenly onto the fabric, making sure there are no dry spots.
Place the sheet pan into the oven for 5 minutes, pull it out to make sure the fabric is evenly coated, including the backside, then carefully lift it up and wave it in the air for 10-15 seconds to allow the beeswax to cool slightly.
Hang the beeswax wrap on a line or by draping it over a hanger and allow it to cool overnight.
Use pinking shears (optional) to trim around the edges to prevent the fabric from fraying, then it's ready for use.