Always have consistently fast colonization with these grain jars absolutely the best

Love these jars! Very Quick colonization!

I use these jars all the time for spawning. They work beautifully. I have better luck with them than the bags. The only minor trouble - and it is minor - is that getting the material out of the jar when it's done is not easy. Shaking it out rarely works. I use a butter knife to break it up. The items ship out well packed and so are pretty safe. I watched my delivery person drop the package from standing height to my concrete patio. Everything turned out fine, but I wish I knew who to complain to.

This Was My First Time Ordering And Using Products From Midwest, BY FAR THE ABSOLUTELY BEST When It Comes To Shipping And Quality. I Ordered 4 JARS And All 4 Of Them Fully Colonized With No Contamination. It Only Took 23 Days With A Spore Syringe So I Know It Will Be 10-15 Days With There Agar Plates Im Going To Try. I Also Used There Black Cow Manure. I Spawned 2 Jars In 2 Different Tubs With One 5lb Bag Of Cow Manure Each And created a 3-4” cake. Its only been a few days And Already Almost Half way Colonized. I Highly Recommend These Jars. Only Complaint Is The Grain Jars Were A Little Hard To Break And Shake Because Of The Amount In The Jar Reaching The Lid.

5 Star Rating Though!! Give Me A Sponsorship For My Channel Midwest! Lol

I love these 5-Grain jars (especially the 32 oz option)! They really do colonize amazingly fast and provide an abundance of happy and healthy mycellium. I highly recommend you give them a try!