The jars I got came quickly and they were very fast at colonizing, 3 weeks to fully colonize the first jar!

After successfully fruiting my first monotub, I considered using these jars based on their 97 % success rate. I have experienced some failures using spawn bags which is dissapointing because it can directly impact the spawn/casing ratio. I actually purchased four of these jars and innoculated them using two 10cc syringes of a strain that had previously failed to spawn in four separate grain bags. I innoculated these jars eight days ago and the glass of each jar is now frosted with hyphae and healthy white growth is trailblazing outward with the purest intentions. These jars are amazing and they colonize WiCKED QUICKLY! I had a 100 % success rate; they make me feel like a pro! LOL! These will become the spawn for my second monotub! Thanks Midwest!

The 3-Pack Premium Quick-Colonizing 5-grain Jar (32oz). Arrived Super fast and undamaged. I Innoculated, the jar and within 3 days have strong mycelium growth. will definitley buy more jars.

Big props to Midwest! I believe I found my new sole grain vendor and I'm anxious to try out some all-in-ones! These grain jars have taken off two days after inoculation, working towards a full week now, they're almost completely ready for their next step! Thanks Midwest for the high-quality prepared grains! Shipping was super fast, very clean, not a single jar was broken or contaminated, there was great care taken in every step of the process!

Originally tried the half pint jars and had a lot of contam. 10 days in on these bad boys, everything looks great, and about 30% colonized. Highly recommend.