using a pad cleaner is best, I just bought some, but b4 that Ijust used dawn or Ivory and hot water. You could use some GP (aka APC) 409 would work pretty good I think. but I got mine very clean just by Ivory and hot water.work your fingers all over pad pushing from middle to edges. rinse untill all soap is out and place with fluf side for velcro up. I have used my wifes baking cooling rack so air gets uner them also (yea she was ok with it,,, I just had to bleach the rack for her LOLOL)