Open Henkelmann with screw cap despite negative pressure
Today I had for the first time a "Henkelmann" (not the original, but a replica, something is also from Emsa) in operation. It is a cylindrical stainless steel vessel with two sealed plastic inner containers. The inner containers I've filled this morning with hot food and turned the screw cap on the stainless steel container. Today's noon then the fright: The thing does not work, apparently because of the negative pressure, which arises from the fact that the food is now somewhat cooled and thus shrunk. There was nothing to be done with a simple effort, I could not grasp the lid properly because it is a bit too big for the hand. The solution to the problem: With a wide jeans belt I strapped to the lid, I finally could solve the cover with some effort, I just had to tear something on the belt. For car mechanics: If you have the tool for unscrewing oil filters straight to hand, it would have to go wonderfully, that's what I had in mind when I took the belt to hand. I hope I can save others from an involuntary fasting cure with this tip.
