Note that the Eierschalensollbruchstellenverursacher is typically only for soft-boiled eggs, tho tbh I haven’t actually tried it on uncooked eggs! We love soft boiled eggs and it makes getting the perfect opening really easy and it is a great physics lesson for the kids (prayin aint gonna open those eggs boy, for that we need SCIENCE!)
I just learned from Jacque or boing boing in the last week or so that the best way to open eggs is to whack em on a flat surface then open up, can even get good at doing it one handed if you practice. Just passed that nugget on to Enkling the Younger.