Yeah, I get that. That's why I wished for the OPTION to have the timer shut it off- make it hard to select, use lots of warnings, I don't care..The 'danger' issue with careless users is NOT specific to sous-vide. In fact, many protocols I've seen here won't kill even salmonella, one of the easiest pathogens to neutralize, even if the unit runs forever- they're on the surface of all solid meat/fish, and are only killed by the sear. You cannot idiot-proof consumer products, no matter how hard you try. What you CAN do is warn, and satisfy customers with features. Whatever is done elsewhere, I guarantee the majority of new users assume the timer will shut it off. Also, while on the subject of inexplicable programming limitations, why on earth does the timer not BEEP ON THE APP??? I know there once were complaints about annoying beeps from the unit (new ones have a single, nice chime), but we all have dozens of apps that we use to beep, chime, notify- get our attention when the phone is in our pocket. THAT could be a big help here, too- a chime on the phone when temp is reached, and again when the timer is done. After all, the whole idea of bt/wifi is freedom to move away from, out of earshot of, the unit. C'mon- it's a nice processor (and a GREAT heater/circulator, btw), why not a little more user-friendliness?