Start your mushroom cultivation journey with our Standard Grain Jar Lids, designed for cost-effective, dependable grain spawn preparation. Perfect for beginners and budget-conscious growers, these lids provide essential functionality without unnecessary extras.
 
Why Growers Choose These Lids
Budget-Friendly Solution – Ideal for newcomers or bulk setups on a budget.
0.3-Micron Filter Patch – Ensures proper airflow while guarding against contaminants.
Self-Healing Injection Port – Simplifies inoculation while maintaining sterility.
Durable & Practical – Built for repeated use without compromising quality.
 
A simple, effective solution for reliable grain spawn preparation—without the extra cost.
 
🛒 Order your 6-pack today!
 
(Glass jar not included.)