This composting process begins with a thermophilic stage (hot stage) and finishes with a mesophilic stage (resting stage).
Composting (thermophilic process)
- Layer material in a pile, going one layer ‘browns’, and one layer ‘greens’. At each green layer inoculate with LAB and/or a water extract from another active compost pile.
Notes:
-Smallest pile you’d want is about 3ft x 3ft x 3ft tall. You can build a box out of wood (best) or just pile it up.
-Greens can be any green plant or manure, vegetable scraps, etc this is your nitrogen.
-Browns can be straw, woodchips, dry stocky plants. This is your carbon.
-Figuring out how much of each layer is more of an art than a science becuase it depends alot on the material and mixtures of materials that you are using
- After piling it up let it sit for about 3 days or until temps reach 130degF.
Notes:
-The temperature in your environment, the ratio of ‘greens’ to ‘browns’, as well as the moisture in your pile will all impact the time it takes to reach 130degF
-You may want to look into getting a compost thermometer that has a probe at least 2ft. Especially if using manures. If you do not have a thermometer just stick you hand in the middle, if it is hot enough that you don’t want to keep your hand in there then it’s probably heated up enough
-If you are having trouble getting the pile warm enough try turning it to encorperate layers. If you are still having trouble, you may need to add more ‘greens’ or wet your pile.
- Once it gets to 130F turn the pile into another wooden box or make another pile if you are not using the wooden boxes.
Notes:
-Try to get the middle of the old pile on the outside of the new pile.
- Do that same process of heating to 130F and turning two more times. (For a totally of three times)
Notes:
-Heating, along with the LAB, kills pathogens. This process should take about 1-2 weeks
Further considerations for thermophilic process
-Moisture through this whole process should be maintained to a point where you can squeeze the material and a few drops will come out or your get some water between your fingers.
-Depending on your starting material you may have to wet it at the beginning. The nitrogen or ‘green’ component generally has a good amount of moisture in it. If it easily heats up to 130F when you pile up the layers then there is sufficient moisture.
-Cover with a tarp, or build the piles under a shelter. To make sure they dont get soaked during rain.
-Make sure the piles have drainage underneath, rocks, gravel, or if doing wood boxes, build on top of a wood pallet with metal mesh and landscape fabric over top of it.
Composting part 2 (resting process)
After you have gone through this process you will have inevitably lost some of your good microbes from the heat, so you need to let them recover for a while before using the compost.
- (Optional) This is a great time to inoculate with IMO3 or liquid IMO2, add native earthworms and 1 inch chunks of charcoal.
- let the compost pile sit for at least 2 months while maintain moisture as described above.
Or
- Spread the pile about 2ft thick in open sun over ground with good drainage and plant a cover crop to build a ‘living’ compost full of diverse microbes and insects.
Notes:
-Plant things like oats and corn that form strong mycorrhizal connections.
-Chop the plants down before they flower and let the greens decompose on the surface.
If you do all this, you will have a beautifully diverse, and living compost that you can build a soil with.