Sousvide Art 850W Immersional Circulator Review
Pros: Practically perfect at holding temperature, very accurate
Cons: Lackluster circulation performance, average interface
Manufacturer: SOUSVIDE ART
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Our Analysis and Test Results
The Sousvide Art 850W did do very well in our accuracy tests and earned top marks in the stability test, so it could be a good choice if you care about accuracy above all else. However, this could vary between machines so you may want to double-check with your own baseline thermometer if you truly need accuracy with a few tenths of a degree.
As mentioned above, the main things that stood out to us about the Sousvide Art 850W are its top-tier temperature accuracy and how well it can maintain a steady-state water bath. We tested and measured the stability of each sous vide by encasing a digital temperature logger in a vacuum sealed package inside the water bath and having it measure the temperature to the tenth of a degree every minute for an hour. Scores were based on the percentage of the hour that the thermochron data logger showed a discrepancy from the steady-state temperature. The Sousvide Art 850W earned top marks, with the logger showing the same temperature for the entire hour.
We evaluated accuracy by setting the Sousvide Art 850W to a temperature (135°F) and measuring the water in six different spots with a precise digital lab-grade thermometer and averaging results. We repeated this process with the Sousvide Art 850W set to 147°F as well. The SousVide Art displayed an average temperature error of 0.05°F above the set temperature of 135°F and 0.33°F under when it was set to 147°F.
The Sousvide Art 850W delivered mediocre results when it came to initially heating up water. This machine took just under an hour to heat a full container (9.5 quarts) of tap water to 147°F — a bit slower than the fastest time of 36 minutes.
The Sousvide Art 850W did disappoint us a bit in our circulation metric, which was a fairly significant test that accounts for 30% of the total score for each product. We assessed the performance of the Sousvide Art 850W by adding some water tinted with food dye using a syringe and tube into a corner of the water bath while the circulator pump was operating and then timing how long it took for the entire bath to become evenly colored. The best models tooks 20 seconds or less while the Sousvide Art 850W required a whopping 2:16 to achieve the same level of dispersion.
We also didn't find the interface on the Sousvide Art 850W to be all that intuitive, as you need to tap a button to get it started preheating the water and hit it again to start the timer. The mounting bracket and screw clamp to hold it to the side of the container are fairly typical but we did wish it spun a little easier to speed up installing or removing this sous vide.
Overall, we didn't find the Sousvide Art 850W to be a good bargain purchase. It has a list price that is comparable with some of the top-tier products but scored close to the back of the group.
While the Sousvide Art 850W did have a noteworthy combined performance when you looked at both its stability and accuracy, we found its flaws to be too significant to earn it an award. It gets the job done but some of our all-time favorite models cost about the same, so we think it makes sense to stick with one of those if you are going to spend the same amount on a new sous vide.
— Michelle Powell and David Wise