Some microwaves have a humidity sensor that determines if the popcorn is done and it works well.
Some microwaves have a preset cooking schedule for microwave popcorn and it doesn’t work for all types.
Personally if I’m making microwave popcorn, I just set it to 99:99 and wait for the popping to stop.
janus2@lemmy.zip 9 hours ago
I would recommend setting it to something like 6–8 minutes instead so that if something prevents you from being there to take it out when done (bathroom emergency, etc.) you don’t potentially burn your home down