Cool! This guy changed how I use my dishwasher.

Made me remember that my dishwasher’s detergent door opens when you close the thing, and not during a specific cycle. 😬

Mine doesn’t even have a detergent door, just a divot to fill with powder before closing. It’s one of those countertop ones though, so I guess the available space and complexity was a bit limited.

It probably doesn’t have a prewash at all. That’s the only reason the door is needed, to prevent the detergent from being used before the actual wash stage.