Technology

I would hope it's a special, heavy-duty kind at least.

I've seen an expensive microwave with a capacitive touch panel right above the door (and the door was the classic oven style, so attached by the bottom edge). If you ever had a phone with crappy moisture detection, you know where this is going.

You put your food in the microwave. Turn it on and let it heat the food up. Open the door, take the food out and close the door again. Congratulations, your microwave has probably just turned itself back on, because it detected the humid hot air rising from the briefly opened door as you touching the screen. And because most of the touch screen is "touchable", there's a pretty good chance this gust of humid air can successfully pick a cooking/heating mode and confirm it.

The microwave randomly navigating its own touch screen happened pretty much every time, passing all the menus and turning on was successful about 10% of the time.

In short, I wouldn't expect a microwave interface to have any thought put into it.