Our Favorite Instant-Read Thermometer Just Got an Upgrade — And It’s Even Faster Now

updated Jun 24, 2021
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Credit: ThermoWorks

As much as I love my knives, Dutch oven, and coffee maker, there is only really one thing in my kitchen that I absolutely could not live without: my Thermapen Mk4! It is magical and always helps me cook my best.

What’s a Thermapen Mk4, you ask? It’s a super-fast, incredibly accurate instant-read thermometer that ensures you’ll never undercook chicken, salmon, steak, bread, and the like.

Now, there are other instant-read thermometers out there, but I have yet to find one I love and can rely on so faithfully as this Thermapen. As far as I’m concerned, the Mk4 is a perfect tool. It has never let me down, and I know that professional chefs sing its praises too. So when I first heard that ThermoWorks (the company behind the Thermapen) was replacing the beloved model with a brand-new thermometer that costs a few more bucks, I was skeptical. If it ain’t broke, don’t fix it! Right?

Turns out, I love it even more than my old one. The Thermapen ONE officially became available today, but I got my hands on one a few weeks ago and I still can’t get over all the upgraded features.

Here’s what’s new with the Thermapen ONE:

  • It gives you full readings in just ONE second (thanks to “new advances in thermodynamics,” the company says). One second! This makes it “the first true one-second instant-read thermometer.”
  • It’s accurate to half a degree.
  • It has a brighter, even more responsive auto-backlight.
  • It has a 5-year warranty!
  • It has a newly designed battery compartment that’s easier to access.
Credit: ThermoWorks

Of course, the Mk4 was the gold standard of instant-read thermometers for a reason. So there are some things that stayed the same with the ONE. Here’s what the ONE has in common with the Mk4.

  • It has a folding probe that requires no buttons or knobs to operate.
  • It has a motion-activated sleep and wake mode.
  • It’s waterproof to “IP67,” which means it’s resistant to dust and can be submerged in a meter of water for a half an hour and be totally fine (so it’ll absolutely withstand any kitchen accidents).
  • It has an auto-rotating display, so you can read it so matter how you’re holding it.
  • It has a “silver-based additive,” the company says,” that gives it “antimicrobial protection.”
  • It has a calibration certificate that is verified to national standards.
  • If you ever need to have your thermometer recalibrated, Thermoworks still offers that service!

Incredible, right? You can get your Thermapen ONE, starting today, on ThermoWorks’ website.