“Excellent, how safe is the manure once it is composted I would think it ok but? did it say? Human waste has contaminated a lot of food lately”
Good question, and I see nobody has addressed it. I do not know definitively, how safe composted human manure would be.
One consideration is correct composting, in which the temperatures would reach a level that would kill off bacteria. When I was big into composting I found I needed a very large mass of organic material to achieve those temperatures. Perhaps if the human manure were added to such a large mass of other material and composted correctly then that might take care of bacterial concerns. I don’t think a five gallon bucket of organic material would be adequate, more likely a huge pile about ten to twelve feet long, eight feet wide, at the base, and about six feet tall, like what I constructed. Sticking my hand into that pile about a foot in the middle would feel like it was going to burn me, couldn’t keep it there. It takes a lot of effort.
Another matter to consider: humans are at the top of the food chain, and as such we get all the heavy metals from everything we eat, all the plants and animals that we eat, pick up heavy metals from what they eat. Compost from human manure would, I think, contain more heavy metals than compost made from living things farther down the food chain. This would be a cumulative thing, a long term concern, probably more germane to young children than old folks. The very young have a lifetime ahead of them to accumulate toxins, whereas old farts like me are pretty much done for, already poisoned from living my own sixty plus years eating whatever.
Another thing, the pharmaceuticals humans consume. These things are excreted by humans, albeit in tiny amounts. There are real world concerns about this in water treatment effluent discharged into rivers etc. The treatment plants aren’t specifically designed to remove such things.
I need to research this subject in more detail, although finding much on this subject may be difficult.
