I usually don't - I just peel it off. But if you wanted to re-use it I would cut a round piece of freezer or parchment (freezer will wrinkle less) paper to fit in the bottom, and then roll up a rectangular piece to fit in the column, with a good few inches sticking out the top so you could tug it out.
Or if you don't mind a few wrinkles, line it with a plastic bag. Hmm OR you could use a plastic bag with a paper liner inside and you wouldn't have as many wrinkles...
Soaping 101 has a couple of videos that make swirled soap in a Pringles can.Has anyone used colorants when using a cylinder shape soap? I was thinking of the paper towel role method.
I just take wax paper, roll it up and put it in the Pringles can. Open up the roll of wax paper to the sides of the can. Pour the soap in and cover it with a towel for 24 hrs.Hey everyone, going to attempt making a batch in a pringles can tonight, how do you recommend I line the can?