My audio tube equipment requires 30 Min to heat up (with music) before it sounds right and about an hour for it to sound really great; but after 5 hours it must be shut down and allowed to cool off for30 Min before being fired up again.
Almost all new audio equipment requires a "burn-in" or break-tin time which can be up to several hundred hours!
Even connecting cables can use several days (for silver) - which is where transistorized amplifiers come in handy.
When running an audio shop, even more than at home, it is essential to write down these timings for doing meaningful comparisons on well-seasoned equipment.
So where does that leave me? With a Milgauss without a chronograph! I would never think of getting really close to loudspeakers wearing a Lange or any other fine watch.
As for doing any kind of cooking operation, it depends upon the cuisine one is preparing, and how much one cares to rely on kitchen electronics and how well one can stand alarm noises going off (I can't). However, once a pot is boiilng, or rather simmering, and no longer requires frequent stirring - for an hour or so, it is nice and convenient to go to another room, shut the door, and keep an eye on the chrono.
Which reminds me, it has been a long time since I made an Irish Stew.