Our water softener hasn’t worked in years (I am that lazy) so quite a lot of minerals build up on the bottom and sides of our electric kettle in just three or four days. I clean it out by adding about a cup of vinegar to a liter of water and bringing it to a boil. Then if I remember, I use the boiling vinegar & water to clean the minerals off something else. Today it was a pot with some calc built up on the inside bottom. I don’t have to scrub it, I just pour it in and let it sit while I wash the dishes.
You know how sometimes you’ll be standing in a room and a spider will come down from the ceiling right in front of you? That didn’t happen today. Today, the spider came down from the ceiling right into the pot of near-boiling hot vinegar water. That spider had the worst Monday ever.