Hi all, I have made 2 batches of soap so far, as I am new to soap making. First batch was 2lbs in a wooden mold, which came out nice. 2nd batch was 4lbs in a plastic rectangular (storage container) loaf-like which only reached partial gel. I wrapped the plastic mold in only fabric, maybe I should have used heavy towels. I am just wondering if it was the mold that caused the soap to only partially gel or maybe it was not wrapped enough. What are folks thoughts on plastic storage containers used as molds- do others do this? Thanks in advance, Barb