... FOR USE1, choose proper size for the pouch ,which adjust to the item to ba sterilized ,or the pouch/packaging might be broken.2, ... to the colour changing :as usual ,the mark turns black after STEAM sterilization,as for EO is brown.6,HOW to open the pouch: open the ... cap according to the right direction printed on the pouch/packaging7,IF the pouch/packaging is ...