I remember I spoke with the professor at UCSD working on this eTPU alternative to regular PUR this article is referencing a few years back. He was frothing at the mouth of selling this as a product as he was eager to talk with big companies to sell the research, it turned me off 100%. I asked if it decomposes just as well anaerobically and he said it's not intended to be used outside of composting scenarios. It also has little shelf life and more hygroscopic which reduces use performance over time. So there we have it. Another green wash situation. Your composter is NOT going to accept this when they see it x10000000