To make a long story short: I believed a micro wave oven needed three buttons. When the on/off switch failed on my oven I realised I only needed two.

One button is for the timer. When set to zero the oven is off. Preferably the button is a turnable dial. Fast and easy.

Another button is for the effect. Also preferably a turnable dial.

Why does the microwave at my job have 10 buttons? where I don’t even know what all do.

My newer microwave has 8 buttons. They beep when I press them as if I didn’t know that already.

My suggestion is to bring back the microwave oven with 2 buttons.

See image. See all the buttons. Find out what they do.

To the defence of the oven producer it is both a microwave and a regular oven; which makes it harder to create a simple UI.

But… why have plus to the left and minus to the right?