"Compostable" Cup Update
Back in June of 2011, which is about eighteen months ago now, I added a "compostable" cup made from plant materials to my compost bin. Yesterday I was finally harvesting the bin--got gorgeous near-humus, by the way...
...and discovered the "compostable" cup hasn't broken down much. It still looks pretty much like a cup.
I've read that these "compostable" containers and the like really need commercial level composting (very high heat) to truly compost--a home composter doesn't work well.
I think I can confirm that. I'll toss it back into the bin and see what the next 18 months does to it.
In contrast, further compost harvesting revealed that a 4" "compostable" pot I bought some small plant in--tomato? lavender?--a couple of years ago was broken down nicely. There was just one barely recognizable piece left. I had to ponder it a while to remember what it was. I think those pots were made from compressed rice hulls or some other such stuff. Probably not something you could drink coffee from.