We recommend machine washing in warm water with 1/2 cup of vinegar. This helps the towels form the honeycombs and also helps remove any natural waxes more quickly.
For darker colored towels, help the colors "set" by adding 1 cup of vinegar, 1/2 cup salt or 1/2 cup of baking soda to the first wash.
We also always recommend washing dark items separately, especially the first couple of times.
Tumble dry on low heat, or line dry on your clothesline. We recommend not using fabric softener or dryer sheets, which coat the fibers and reduce the towel's absorbency.