I bought these jars after another [expensive ripoff] kit I bought fell flat on its face. This is my first time growing and I immediately noticed the difference between these super quick jars and the grain mycobags (two) from the other manufacturer's kit that did not colonize or got contaminated. The mycobags from the other source I fought with for weeks, trying to get any significant mycelium growth. These jars, on the other hand, were as colonized as far as the mycobags had gotten in 14+ days, in just 3 days. The mycelium growth was a lot cleaner looking with these jars too. I jumped the gun a little bit on opening my first jar that colonized before it could get completely white like in the photo, but about 90% of the grain was showing at least some mycelium so I hope special formula of grain makes up for that. We shall see what happens. The other jar I inoculated will stay in the incubator longer until fully colonized in case I jumped the gun too quickly on opening the first jar.

Fast shipping and just what I expected. Quality plus

Ordered 3 24oz. Quick colonizing spawn jars....They arrived (quickly) well packed and in tact! And as advertised started to colonize with in five days.

Once again a pleasure dealing with Midwest Grow Kits!