Can I Sous Vide? April 24, 2020 18:48 Updated No. Never submerge or expose the thermometer to excessive liquid, humidity, pressure, or use in the microwave. Related articles Can I use the Smart Thermometer on my BBQ grill? Can I deep fry? Cooking with metallic foil Is Smart Thermometer microwave, pressure cooker, steam oven, slow cooker, or Instant Pot safe? How do I turn Smart Thermometer on/off?