Joule’s maximum operating temperature at sea level is 208 °F / 98 °C. At any other altitude, the max operating temperature is 3.6 °F / 2 °C below the local boiling point.
If you’ve ever been up in the mountains trying to cook something, you might have noticed that the boiling point up there was lower—this is because reduced air pressure at higher altitudes lowers boiling point. In pursuit of the best possible experience for all our customers, we chose not to set a one-size-fits-all max temperature. Instead, we added a pressure sensor that determines local air pressure and in turn automatically calculates the local boiling point to determine max temperature for each individual Joule, no matter the altitude.