Can I compost bones? Can I compost bones that I have used for bone broth? Can I compost bones that are left over from cooking, the dog, etc?
We do not personally have too much experience composting large quantities of bones, but we have done some research into composting bones, and we have also considered the material bones are made out of. We therefore think that you can put bones in the Subpod system, however much of the “bony” material (mineralised calcium and phosphate) is unlikely to break down readily in the vermiculture system in the same time frame as the rest of the waste added unless crushed into small particles or powder, or are the tiny bones of a small animal, bird or fish.
It will also depend if the bones being composted have been made into bone broth and are already disintegrating or they are totally whole and large like a beef bone.
If larger bones are cracked open to expose the marrow, this interior part of the bone can provide nutrients to the system.
There are a couple of solutions for slow composting bones.
- If you find leftover bony material in your Subpod when you are collecting the worm castings to spread around your plants of mix with the soil, you can remove the remaining bony material and dispose of, or also spread around with the worm castings.
- Have a second Subpod so that you can leave the bones for longer periods of time to break down and compost. Or with one Subpod, you could take out the worm castings when the Subpod is full and leave the bones inside to go through more composting cycles until they are completely broken down.
You may like to do a search online to see which plants prefer bone meal and the optimal ways in which you can break down bones. Below is an interesting article about composting which discusses composting bones. The benefit of Subpod will be the fact that rodents and other critters won’t be able to get into the system.
Can dog, cat and other animal faeces be composted?
For health reasons, and to be on the safe side, we advise that you compost animal poop (fecal matter) and anything that comes into contact with animal poop in a separate Subpod to your normal Subpod (Subpod for growing human food). Or that you only ...
Can the hay that is used in my guinea pig pen be put into my Subpod?
You can compost the hay that is used for your guinea pigs just fine in Subpod. The hay will be a source of carbon and also nitrogen if it’s covered in the guinea pig poop. For health reasons, and to be on the safe side, we advise that you compost ...
What soil/compost/other materials do you recommend to go into the garden bed where the Subpod is going to be used. We will be growing vegetables.
If you are growing vegetables in your raised garden bed, it is worth using a premium grade of soil, not potting mix. Potting mix is designed to hold a lot of water, but for a raised garden bed, it is better to have well-draining soil. For example, ...
Can dog, cat and other animal faeces be composted in Subpod?
Yes, you can compost animal poop in a Subpod. If you choose to do this however, you will not be able to use any of the worm castings or worm tea for fertilizer on plants that will be eaten by humans. You will need to put a warning on your Subpod to ...
Can you compost coffee filters?
Coffee filters are fine to compost in your Subpod. Just be sure to avoid adding coffee filters lined with plastic coatings to your Subpod. Although they will break down pretty quickly, a good tip is to tear them in half to compost faster.