If your phone dies or shuts off, Joule will continue to cook safely with no further input. You can pick up where you left off whenever your phone turns back on. If you can’t turn your phone back on, you have a couple options: You can connect to the same account using another phone or tablet and pick up where you left off. Or, you can manually track cook time, and when your food is done, you can shut Joule off by pressing the button on the cap and holding it down for one second.
You can always cook without WiFi via Joule’s Bluetooth connection. If you lose your connection to both WiFi and Bluetooth or your phone otherwise loses connection, Joule will continue to cook safely with no further input.