How can I change from Fahrenheit to Celsius in the Tasty app? It is not currently possible to change from Fahrenheit to Celsius in the Tasty app. Tasty One Top is currently exclusive to the US and Tasty recipes were originally designed in Fahrenheit. However, our goal is to answer demand from customers, and adding additional temperature measurements for Tasty One Top is at the top of many customer requests. Stay tuned for future updates related to this feature. Related articles Can I turn off the sounds on my One Top? What does the Tasty app do? Do I need Facebook to use the One Top? How do I cook in Direct Mode? What is Sous-Vide?