Quantity:6pcs
Lid Material:food grade Polypropylene
Lid diameter:86/70mm
Fit for all Wide/Regular Mouth Mason Jar
The second generation Lid comes with two self healing injection for injecting culture to inoculate the substrate more average and a PTFE syringe filter for avoid contamination without glue,more healthy for mushroom growing.
These lids can be used in a microwave, autoclave or pressure cooker.
Our professional grade autoclavable wide mouth jar lids are built to be lab-quality, and made specifically for liquid culturing .
Leave the lids a quarter turn loose while in the pressure cooker so air can escape, otherwise the injection ports will pop out.
