Material:Polypropylene (food grade)
Diameter of Lid:70mm
Fits all Reg. Mouth Mason Jars
0.2 micron PTFE Syringe Filter & 20mm Self Healing Injection Ports
2nd gen lid includes a self healing injection port for injecting mushroom culture and a PTFE syringe filter to avoid contamination.
Lids can be used in a microwave, pressure cooker or autoclave.
Pro grade autoclavable reg. mouth jar lids are made to be lab-quality, and specifically for liquid culturing .
Leave lids a quarter turn loose when in the pressure cooker to allow for air to escape, otherwise injection ports will pop out.
2nd Gen food grade Polypropylene Liquid culture Lid ,no glue !
6Pcs Reg. Mouth (Dia:70mm) Mason Jar Mushroom Cultivation Lids
Polypropylene lid comes rubber self healing injection port, a high quality .22 micron PTFE filter with luerlock adapter
All components are reusable and autoclavable
Used for Mushroom Liquid /Spawn Cultivation