Sous Vide vs. Instant Pot

Read the function list, not the brand

"Instant Pot" is a brand with a wide range, not a single machine, and sous vide is not a standard function across it. Of the two Instant Pots in our catalog, the Duo 6 Qt publishes seven functions — pressure cook, slow cook, sauté, steam, rice, yogurt and keep warm — and the Duo Crisp 8 Qt publishes eleven — air fry, roast, bake, dehydrate, pressure cook, slow cook, sauté, steam, sterilize, warm and rice. Neither list includes sous vide. Instant sells models that do list it; we do not track one, so we will not name a model we have not verified. The practical advice is simple: read the printed function list on the exact model number you are buying rather than assuming the brand covers it.

The rest of this page is about the more interesting question — what a multicooker with a sous vide program can and cannot match, and whether you should buy one instead of a circulator at all.

Circulation is the whole argument

Sous vide is not "cooking at a low temperature". It is cooking at a known and constant temperature, which is what lets you leave a steak in the bath for an hour past its target without overcooking it. Holding that constant depends on two things: moving the water, and measuring it where the food is.

A circulator does both by design. Anova describes the Precision Cooker 3.0 as circulating water at the exact temperature required, and it clamps to the side of the pot so the heater, the impeller and the probe all sit in the same moving stream. Water that moves has no cold corners, and the probe reads what the food feels.

A multicooker heats from an element under the inner pot with the water sitting still. Heat rises, so a static bath stratifies — warmer at the bottom, cooler at the top — and a bag resting on the base is in a different environment from one floating near the surface. The sensor, meanwhile, is reading the pot, not the water column. None of that matters for pressure cooking, where you only care about reaching and holding pressure. It matters a lot when the entire premise is that 129°F and 133°F produce visibly different steaks.

What the makers actually publish about accuracy

This is where the comparison gets one-sided, and it is worth being precise about why.

• Inkbird ISV-100W publishes an accuracy figure: ±0.1°C (±0.2°F), a 77–210°F range, and a self-calibration function adjustable from −10°F to +10°F — the only machine here that lets you correct the sensor against a reference thermometer. Its listing title states 1,000 watts.
• Anova Precision Cooker 3.0 publishes 1,100 watts, Wi-Fi control, an adjustable clamp that fits nearly any pot deep enough, and a removable stainless skirt for cleaning. Two-year manufacturer warranty.
• Breville Joule Turbo publishes no wattage figure and no accuracy figure. What it publishes instead is software: a Turbo mode Breville states delivers precise results in half the time, visual doneness selection, and a Prime Time window. One-year limited warranty, and at 1.65 in across and 2.09 lb it is the smallest thing here.
• Instant Pot Duo Crisp publishes 1,500 watts and eleven functions. It publishes no temperature-accuracy figure of any kind, because nothing it is designed to do requires one.

We are not going to convert that silence into a number. The honest summary is that the machines built for this job publish accuracy specifications and the machine built for pressure does not.

Where the multicooker genuinely wins

Three real advantages, and the last one is the one that decides it for a lot of kitchens.

It is a sealed vessel. A long sous vide cook in an open pot loses water to evaporation, which is why circulator users cover the bath with a lid, foil or ping-pong balls. A multicooker has a lid on it already.

It can brown, and sous vide cannot. Nothing in a water bath below the boiling point will ever brown, so every sous vide cook ends with a sear in a hot pan or with a torch. A multicooker with a sauté function does that step in the same pot; the Duo Crisp goes further and air fries.

It does a job a circulator cannot touch. Pressure cooking is the opposite technique — fast, above boiling, for collagen-heavy cuts, beans and stock. Instant states up to 70% faster cooking, and it is worth reading the fine print on that claim, which is measured against slow cooking rather than against an oven. If a single machine has to cover both dried beans on a weeknight and a steak at the weekend, the multicooker is the more useful one to own. We cover its other half in air fryer vs. Instant Pot.

Capacity works in opposite directions

A multicooker's bath is its inner pot: 6 quarts on the Duo, 8 on the Duo Crisp, and that is the ceiling. A circulator has no vessel of its own — it clamps to whatever you have. Anova's clamp fits nearly any pot deep enough to meet its minimum water depth, which means a stockpot, a cooler or a plastic tub for a large batch. For cooking eight portions at once, the circulator is the far more flexible machine, and it is also the cheaper way to scale, because you already own the pot.

Storage runs the other way. The Joule Turbo is 1.65 × 1.65 × 11.97 in and 2.09 lb; the Anova Nano stows in a drawer. The Duo Crisp is 13.58 × 14.76 in and 15.28 in tall at 22.18 lb — a permanent counter resident. Whether that counts against it depends entirely on how many jobs it replaces.

Running cost, honestly

Published wattage tells you heat-up speed, not running cost, because a circulator draws full power only while bringing the bath up to temperature and then cycles to hold it. We do not have a published duty cycle for any of these machines, so we do not publish a cents-per-cook figure derived from one. What we can say is that the Instant Pot's 1,500 W and the Anova's 1,100 W are in the same bracket, and that the cost of a long hold is dominated by how well your pot is insulated and covered rather than by the machine. The fuller treatment is in what sous vide costs to run.

Which one to buy

Buy a circulator if the reason you want this is the result — edge-to-edge medium-rare, chicken that is safe and still juicy, eggs at a temperature you chose. The Anova Precision Cooker 3.0 is the default: the most powerful machine here, a clamp that fits your existing pots, and a two-year warranty. The Inkbird ISV-100W is the value answer and the only one that publishes both an accuracy figure and a way to calibrate the sensor — Anova vs. Inkbird puts them side by side. The Joule Turbo is for people who want the software to make the decisions; note it has no on-device display, so the phone is not optional. That trade-off is the whole of Anova vs. Joule.

Buy the Instant Pot Duo Crisp if you have room for one machine and want breadth rather than precision: pressure cooking, air frying and searing in a single body. Just buy it for what it is. Treating a multicooker as a sous vide machine is the same category error as treating a slow cooker as one — different premise, different results, laid out in sous vide vs. slow cooker.

And if you have not decided whether the technique is for you at all, is sous vide worth it is the honest case both ways, while what is sous vide covers the method from scratch.