The Weekly BioDIGESTer: 10/15

Welcome to the debut of the weekly bioDIGESTer! A new series consisting of weekly project updates and related news around food waste management. Check out what we were up to last week!


Over Monday, Wednesday and Friday, we loaded a cumulative 3,734 lbs. of food scraps into the system along with 1,100 lbs. of wood shavings which serve as a bulking agent/carbon source (Read a previous blog post to learn more about why we add wood shavings).

We are currently testing American Wood Fibers’ mini flake. These wood shavings account for ~30%  of the total weight of the food scraps feedstock in order to adequately account for the moisture level of our food waste stream.

As a result, the 1,500 lbs. of finished compost that we off-loaded was an ideal texture – not too dry and not too wet.

Food Scraps Wood shavings (BA/CS) %


Week Totals (lbs.) 3,734 1,100 29% 1,500


Finished compost after it was off-loaded from the system


Food waste in the news:

A diverse set of strategies will be needed if New Jersey plans to meet a state target of cutting food waste by 50% by the year 2030. The Princeton Biodigester project represents further investigation of the potential of on-site food waste re-purposing through in-vessel composting. Read more about the current legislative and technical landscapes around reducing food waste in New Jersey in this deep dive article from Waste Dive: