Paper cupcake liners are made from circles of paper, then the outer parts are are crimped to create the (mostly) vertical sides. The shape of the liners should match the indentations in the muffin tin.
In my stash I found a few batches of liners that mysteriously got "flattened" a bit. Now when I place them on the tin, they don't sink to the bottom, but sit on top. If I simply push them down, on one or two places the pleats will fold towards the middle, getting enclosed by dough on both sides. Which isn't just aesthetically "meh", but also tears the cake when unwrapping.
Is there a reasonably easy way to get the liners back in shape?
- I don't want to throw them away because they are really pretty.
- But I don't want to spend hours to gently reshape them pleat by pleat either.
- Sometimes filling the cups very slowly by piping the batter with a pastry bag while gently pushing the liners down and distributing the pleats helps a bit. But a fitting liner makes the work faster and easier.