This is our exact substrate formula. The only difference is we do not add moisture or pasteurize this product. This will allow the user to add as much or as little water as they desire to the mix. You can store this longer at room temps and use as needed. We do all the dusty shredding and mixing so it’s easy to do the rest yourself even if you live in a small apartment or with other residents. This is sold by volume at 5 gallons a pop. We think this will be highly desired by people who want to learn how to pasteurize their own product but don’t have the space needed to shred or mix their own manure based substrates. Not to mention what a bang for your buck! As for all of our products, the price of shipping is factored in already. What you see is what you pay at checkout!