don't boil w/snaps. Other than that, boil for abt 20 mins for organic cotton and hemp. then wash and dry a couple of times and you should be good to go. for things w/snaps just wash in really really hot water w/a squirt of dawn to strip the natural oils a few times, maybe 3-5 times. Wash and dry, then wash again, yadda yadda. If you can't or don't want to turn up your hot water heater, boil water on the stove to add to your wash. HTH!!