Having now gone back to the butterfly can opener after years in the "wilderness" seeking the perfect combination of, fit for purpose, and aesthetic pleasure re. these gadgets, I am wondering why I put myself through the expense (many, many "designer" openers), and discomfort, even pain, attempting to get the objects to function, when the solution lay in the familiar,if very plain, butterfly version.
In frustration at being unable to get my latest "fancy" opener to work, I decided to give the model from my childhood a chance.I wish I had done it ages ago! 10 out of 10. (Oh, apart from in the looks department, of course!)