I see, need to be with a instant pot ? And how much temp and time to sterilize ? You put with the rubber too?There's not really a brand there. I don't know that seller, but every cartridge I've bought from any seller has been the same. The indicators don't indicate that they are sterile, but they don't change color after I sterilize them in the instant pot, either. I always sterilize them myself to be sure.
