[sp332]

To preheat before you get home, or to make sure the oven is off after you've left.

https://www.samsung.com/us/support/answer/ANS00049148/

With AEG's app, you can find a recipe and the app will automatically set the temperature and cooking time for you.

[HarryHirsch]

We had analog timers 50 years ago, so that the Sunday roast would be ready when you came home from church. This crap is unneeded, unnecessary complexity. To hell with it.

[freemint]

Do you always know when you come home? Can you excuse yourself with i have to leave this meeting now or my house burns down in your job?

[HarryHirsch]

The thing would turn on and then turn off. And no one would detain you after Mass.

[denton-scratch]

Hmmm, I've never considered pre-heating a microwave; I thought it wasn't necessary, because the food would be heated using - um - microwaves. I must have been missing a trick.

[sp332]

Yes this is a "combi microwave". It is also an oven.