[header] How to dry sprouts [title] Test your oven to make sure it can maintain a temperature of 140 ° f (60 ° c). [step] A gas oven might not be able to maintain such a low temperature, but it could work by using only the pilot light while an electric oven will need only the bottom element. You may have to disconnect the broiler. 
[title] Place an accurate thermometer in the rear of the oven, and make sure it is easily visible. [step] Set the oven thermostat to 140 ° f (60 ° c).