Reply To: What is the purpose of those twist tops on certain pot covers? Home › Forums › Decaffeinated Coffee › What is the purpose of those twist tops on certain pot covers? › Reply To: What is the purpose of those twist tops on certain pot covers? August 15, 2012 11:52 pm at 11:52 pm #891555 oomisParticipant Probably to allow the pot to vent some steam, so the liquid does not boil over.
