First you score them with the cutter. Then you apply boiling water to the score line, followed by ice water, and the bottom separates along the score line.
Looking good! I hope you follow how your seedlings fare under the cloche, how you cope with possible overheating, watering, etc. It's always been a challenge for me :)
It's time to get positive about negative thinking -Art Donnelly
The Humble Soapnut - A Guide to the Laundry Detergent that Grows on Trees ebook by Kathryn Ossing