We now have data to indicate that the lids to fully compostable. Before it was just secondary data from the manufacturer. Emily from Texas Township Farmers’ Market, the farmers’ market manager, confirmed today at the market that the cups and lids and spoons all were composted…as she couldn’t determine if there were cups/lids or not. It was part of the soil. She started this last summer (Summer 2017).
We have been also running our own experiment. Here are pictures of putting in cups, lids, and spoons at the farm in Austin on May 11th (2018) — a week ago.
And here are pictures of cups we dug up on May 19th, for cups, lids, and spoons we put into the dirt 30-45 days ago. You will see the cups are decomposing nicely, even when they are put into the ground stacked together. [ Note: We learned when putting the cups and lids into the composting pile / dirt, it is better to separate the cups so that they compostable quickly and more evenly. ] The lids are becoming brittle, and fall apart easily (see video of how easily the lids break apart after 30-45 days).