Hi, unscrew means there is a thread twist means to turn the lid, with some force. In my experience, lids usually sit on kettles. And even bounce up and down a little as the steam pressure builds up So, I put a lid on, take a lid off.
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stephenlearnerIn my experience, if a lid is opened by turning, it must have a thread, or thread-like structure.I can't see there is a difference.True, most of the time. Threaded items usually require several twists. Other times a "snapping" mechanism is involved. For example, when I attach a lens to my camera I just give it a quarter twist (less