[2022] Compost Fertilizer?

That's correct.

Originally posted by Seedy: We wish it were correct, mine just turn into garbage

We do have an investigation on that running, but so far were not able to reproduce it on any of our testing worlds.

It would be appreciated though if you opened a new thread for issues, this one is over 2 years olds and information in that is likely no longer applicable, just as there might have been a bug introduced later making the behaviour different from what I stated over two years ago.

Originally posted by stlyau: It's not exactly "clean" water that comes out of the waste filter. It is still slightly polluted and if you don't dump it 30 tiles below the surface, it can still create ground pollution or water pollution if you are outputting it there.

Indeed.

We had gotten reported similar behaviour with several types of seeds, but were never able to reproduce locally. Gonna see if it works with sausages, I guess.