How can I change from Fahrenheit to Celsius in the Tasty app? Matthew M. November 23, 2018 23:09 Updated 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 What is Sous-Vide? Can I turn off the sounds on my One Top? Getting started with the One Top Tasty One Top FAQ Do I need Facebook to use the One Top?