I have had a 'Perfect 10' with each one of these I have purchased! That, is more than enough reason to keep reordering!
This is my 3rd time using these. I have had great results each time, and they make them oh so easy to use!
This is the first timne I've used the Ultimate Substrate Jars but have been impressed with how easy they were to inoculate and how quickly they started to show signs of colonization (less than one week)!
On time, no complaints. Thanks.
On time with no contamination after inoculation