When it comes to frothing milk, you typically need to keep two variables in mind if you want to get it right: texture and temperature. Taking care of the former comes down to experience, and depends pretty substantially on the kind of espresso machine you’re working with. Getting your milk to the perfect temperature (you’re typically aiming for ~60°C), on the other hand, can be achieved pretty easily with just a little mechanical assistance. 

Most probe thermometers can make this a cinch, but they aren’t perfect. There can sometimes be a slight delay between what your gauge is showing you and what the probe is actually detecting, which can lead to you overshooting your mark. This adhesive thermometer by Peakabrew, however, has no such issue. Using thermochromic liquid crystals, this stick-on solution uses coloured squares to indicate the temperature of your milk as you foam, with speed and accuracy. Just stick it near the base of your milk jug (keep in mind to put it somewhere you can easily see it while you work) and you’re set! It measures in both Celsius and Farenheit, and is dishwasher safe, so once it’s on, it’s on, and you can look forward to perfect milk temperature from then on.

Peakabrew Milk Jug Thermometer Sticker features and specifications

• Reliably sticks to your milk jug (dishwasher safe)
• Displays temperature in both Celsius and Fahrenheit readings
• Range: 45° - 70°C / 113° - 158°F, split across six squares