I take out the side pieces, then turn it upside down and peel the mylar off, put it back into the mold and then cut it. I love it...just remember to get the heat resistant mylar. Got mine in the quilting department at Hobby Lobby. It's a pain to cut, but one you get it right, it's a dream...I do RTCP, but I still use the heat resistant. That way I could CPOP if I wanted to. Sandi G GoodStuff Bath & Body