What Is Sterilized Compost Substrate?
This goes hand in hand with our Sterilized grain spawn. We have this soil mixture specially crafted in house by our team of soil scientists. (Like for real! They have degrees and stuff)
This substrate is perfectly hydrated and then air locked and sterilized 3 times over. This can guarantee you 100% sterilization every time. When you receive these bags they are still in their airtight state and can be stored for a long time before use. No air or water can get in or out meaning they are moist and ready to cut open and use whenever you are! Since compost substrate is usually used in a 2:1 ratio (2 compost: 1 grain spawn) we sell these compost bags in 4 pound units to go with our 2 pound grain spawn.
These Bags come in 4 pound unit sizes which are perfect ratio to use 3 bags per large mono tub.
The ratio for a 60 quart Mono tub is approx.:
6 pounds Colonized Grain
12 pounds Substrate compost
2 pounds Casing for top layer (some people use more if they want a thicker top layer)
INGREDIENTS: Consists of Manure, Composted mulch, Compost soil, Broken down hay, Composted grass clipping, Peat Moss, Vermiculite, Hydrated lime and a few things we keep to ourselves! That’s what makes our products amazing.
We make sure they are packed with nutrients that your mycelium actually need to thrive and grow.
This product is made on a large farm with employees working round the clock to turn the compost piles and monitor the heat and air flow exchange. Then it is packaged and sent to our sterilization lab. This will definitely save you a significant amount of time! The ingredients in these bags were crafted through many years of trial and testing with multiple farms, they are mineral and PH balanced by scientists who have degrees in Soil Science, Agriculture and Mycology.
- Sterilized 3x over
- 100% NO contamination
- Multiple ingredients tested over years of trials
- Nutrient dense
- PH balanced
- Scientist formulated
- Air locked and has a long shelf life before opening
- Perfectly moisturized and ready to use from bag to Monotub
- Comes in 4 pound unit bags
- Mycelium love It! And that’s what matters most.
There are different ways to use Compost Soil mixture. The top 2 being.
1. As your bottom layer of your large mono tub, where you would put your colonized grain on top of the Compost and mix it in and then let it colonize further.
2. As a layer in a mushroom grow bag. Some people like to grow directly from a bag and they will add Compost soil into their colonized grain bags and mix it up and reclose it. So they can harvest smaller batches inside bags.
Once your inoculated grain spawn has reached 100% mycelial colonization, it is now time to spawn it to a bulk substrate, like our Compost Soil.
Once the grain bag is completely colonized with mycelium (you should not be able to see any uncolonized grain), break the grain up with your hands through the outside of the bag. Make sure the grain gets broken up completely and thoroughly.
Cut off the top of the bag containing 4 lbs. of Sterilized Compost Soil with a clean pair of scissors. Use this to dump into your Mono tubs after they have been cleaned properly. Each 60 quart Mono Tub takes aprox 3 bags of our 4 pound Compost Soil. Or more if you prefer.
The spawn ratio that we recommend is two pounds of colonized grain spawn per four pounds of Sterilized Compost soil.
Cut off the top of the 2 pound bag of broken-up colonized grain (the bag that you previously broke up) with a clean pair of scissors.
Dump the broken-up grain bag in to the mono tub on top of the Compost Soil. Do the same thing to the other colonized grain bags you are adding to the tub. Usually 3x of our 2 pound Grain Bags will be added to a 60 quart tub once they are colonized.
(A complete 54 to 62 quart mono tub is 12 pounds of Compost soil and 6 pounds of colonized grain which is a ratio of 2:1)
It is very important to make sure that the mixture is mixed up thoroughly and that the grain is distributed evenly throughout the tub. Then cover the mixture with Aluminum foil and place it in the dark.
Please make sure to read tips online about making the mono tub.
You can do this in one of two ways as mentioned above. You can introduce the combined Compost soil and colonized grain to a homemade Mono Tub bin, or you can mix them in mushroom grow bags. The vessel that you choose to grow your mushrooms in is really a matter of personal preference. If you choose to use the mushroom grow bag and not the mono tub, then Pour the 4 pound compost soil into your 2 pounds colonized grain bag. And mix it well together. Some people choose to move this combination into another bag or a bigger bag. It is best to do all these steps in a small, clean workspace with limited airflow. Make sure to wear gloves and a mask during this process
If you use the bag method, after your done seal the bag well with a bag clamp or duct tape so nothing gets into it.
Put the bag or mono tub in a dark place that will maintain a temperature between 75-81°F. Or 26 to 28 Celcius. Disturb the bag or mono tub as little as possible during this time period and do not open it until colonization is complete. It will take approximately 5-10 days for the substrate to completely colonize with mycelium (you will be able to tell if it has completed colonization when the substrate has turned completely white). Once you reach this point, it is now time to introduce the bag to fruiting conditions or add in the casing layer which is another product we sell.