DIY: How to Easily Cut Corks Fill a saucepan with a couple inches of water. Add strainer to pan. Make sure the water does not touch the strainer. Add corks to strainer. Boil water for 3 minutes. Cut corks like cutting butter.
How to split corks - put them in a veggie steamer over boiling water for just a few minutes. Pull them out with tongs and cut them in half with a kitchen knife. The steaming opens up the cork so it's not as dense making them easier to cut.