Lid TO 66 Deep DWO decorated green Pasteurization without button

Pasteurising and sterilizing caps can be differentiated by the temperature they can withstand.
Pasteurisation caps can withstand temperatures up to 85/90 ° C (water bath)
Sterilisation caps can withstand temperatures up to 115/120 ° C (pressure cooker / autoclave)
Caps with button produce a characteristic "POP" sound when opening them, a warranty of vaccum within container.