It turns out that leaving the bioplastic in its original form after casting makes it clearer. This means not flipping over or removing the bioplastic from its original casting position. Note: this only really applies to film bioplastic.
This experiment was quite simple. First, I cast a sheet of Ag11. After letting it sit for ten minutes, I cut it in half. I took one half and flipped it over, and left the other half untouched. Twice a day, I flipped over the originally flipped sheet, making sure that it didn't create too much contact with the glass, so it was slightly elevated and air could get under it. A better way to do this would have been to hang this on a clothesline of some sort.