Thermoworks Thermapen Mk4 Review

Thermoworks Thermapen Mk4 Review
February 14, 2020

Thermapen Mk4 The World’s Best Thermometer

Over the last weeks, we have brought you cookbooks that teach you intuitive cooking, like Meal and a Spiel and Salt Fat Acid Heat. But from time to time it is good to have science on our side. So, this week we bring you the Thermapen mk4 review.

Before we go straight into the review we first need to clarify something. The Thermapen MK4 it is produced in the UK by the name of Thermapen Professional. So if you live in Europe like us you need to look for the Thermapen Professional instead of the MK4. In fact, this review was only possible thanks to our friends at ETI’s that sent us this unit to review.

Now going straight to the point, and ruin all the suspense of this review, the Thermapen MK4 is the best instant-read meat thermometer money can buy. With best-in-class accuracy and speed, outstanding build quality and ease of use, this thermometer it’s used by hundreds of thousands of people worldwide as a tool for achieving that perfect meat temperature for a medium-rare steak on your grill.

thermapen mk4 review

A Professional Thermometer

The Mk4 is a professional thermometer that measures temperatures over the range of -58.0 to 572.0°F (-49.9 to 299.9°C), with a high degree of accuracy (±0.7°F / ±0.4°C ) within 2-3 seconds. Thanks to its advanced thermocouple technology, which puts the sensor very close to the end of the probe tip, this unit can give you precise readings even in thin pieces of meat like ribs.

Besides this technology, this unit includes a number of useful and innovative features. It has a 360º self-rotating display that can be used in any position, in either hand. Hold it in any direction and the display automatically rotates right-side-up so you can read it in any position.

It also comes with an intelligent backlit display sensing light levels, automatically turning the backlight on/off in varying light conditions. For maximizing battery life, the Thermapen Mk4 comes with a motion-sensing sleep mode, that automatically turns the unit on/off when set down or picked up.

Great Build Quality

Another selling point of the Thermapen Mk4 is its build quality. The casing is washable and includes Biomaster Antimicrobial Technology that reduces bacterial growth. And as if this is not enough it’s also waterproof to IP66/67.

After start using this thermometer, we will notice that everything is built with a purpose. The Mk4 incorporates a reduced tip, that conveniently folds back through 180º into the side of the instrument when not in use. This feature is particularly useful when it comes to store the thermometer, or when you to travel with it, for example to a BBQ competition.

In terms of battery, this unit is powered by a single AAA battery, and accordingly, to the manufacturer it will last around 3000 hours in normal use, without the backlight.

Product Information

Technical Specification

Product Dimensions: 0.75 x 1.97 x 6.2 inches / 1.9 x 5 x 15.7 cm
Item Weight: 0.26 pounds / 120g
Battery: 1 x 1.5v AAA battery
Battery Life: 3000 hours (100 with continuous backlight use)
Range: – 58.0 to 572.0°F /- 49.9 to 299.9°C
Accuracy: ±0.7°F (±0.4°C) from -58 to 392°F (-49.9 to 199.9°C) otherwise ±1.8°F (±1.0°C)
Measurement Scale: Fahrenheit / Celsius
Response Time: 2-3 seconds
Water / Dust Resistance: IP66/67 protection

thermapen mk4 review

At the End of Thermapen Mk4 review

All in all the Thermapen Mk4 is the best instant-read meat thermometer money can buy. We have been using it as our every thermometer and we couldn’t be more happy with it. It’s perfect for simple tasks like measuring dough temperature and for more advanced ones like precisely measuring the temperature for the perfect steak. If you are looking for a new thermometer, and if you have some extra money this is the one you should buy.


Thermapen Mk4 is by far the best instant-read meat thermometer money can buy. From simple tasks as checking oil temp while deep frying or poaching an egg to barbecue competionions this thermometer will have you covered.


Ease of Use


Build Quality


Temperature Accuracy


Response Time

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