I have never had a bad one. I use these to colonize mycelium. They have never failed..

Well-packed and received shipment exactly on time, same day as my cultures arrived. It's been 8 days since injection and mycillium is is growing as described in the instructions. Very happy with this product, especially after researching the process of preparing your own rye berries.

I always have excellent results with this mix

 

Once again Midwest Grow has delivered an amazing product and it came fast and packaged beautifully. Can't say enough about these guys and their awesome products.

I truly won’t buy from any other company and this specific product is the “best on the internet”