After looking at so many Thermometers I decided to get this one, CDN Proaccurate Insta Read Beverage and Frothing Thermometer not for Frothing Milk only to heat it up to make Yogurt. I have used it about 10 Times so far and works without any problems. I have to reach the Temperature indicated and it might be off by a couple of degrees. It has the Recalibration Tool on the Sheath. I like the fact that can be attached very secured to the Pot with Milk and the Clip works Perfectly, stays there without moving. My Thermometer came without any Scratches on the Glass Surface and arrived very fast, It's not Perfect but so far still works! ...Thank You