If you have one of the higher tier models of Instant Pot, then you may well have a ‘sous vide’ button on it. We’ve used sous vide cooking a few times with our Instant Pot Duo Plus to make tasty meals, as it’s relatively easy to do.
Sous vide is French for ‘under vacuum’. Essentially, to cook something using the sous vide method, you put it in a vacuum-sealed bag, and then put it in a heated water bath (also known as a bain marie) inside your Instant Pot. Depending on the recipe, this can be quite quick, or take many hours. In the photo example, we were cooking some beef brisket for 30 hours.
There’s some instructions for how to set your Instant Pot to sous vide here. As well as setting the cooking time, you also need to set the temperature, using the buttons or dial on the front of your Instant Pot. Once it’s going, we use a glass lid (sponsored link) that we bought separately rather than the pressure cooker lid, so that you can see inside.
Sous vide without an Instant Pot
The sous vide cooking technique has been around since 1974, when it was pioneered by a French chef (hence the name). But the need to keep the water at a constant temperature means that it’s a difficult technique for home cooks to adopt without specialist equipment. You need something that forms a feedback loop between a temperature gauge, and the heat source. Of course, you could probably have a thermometer inside the bain marie and constantly adjust the heat yourself, but this isn’t feasible for recipes that take a long time. Thankfully, many models of Instant Pot will provide this feedback loop as part of their sous vide feature, so you can set and leave it.
If you don’t have an Instant Pot, or you have a more basic model without a sous vide mode, Amazon will sell you a sous vide wand (sponsored link) for around £50 that you can pop in your bain marie. The wand will provide the heat and measure the temperature. More advanced models can be configured with a smartphone app – a friend has such a model. It lets you set how well-cooked you want a piece of steak, for example, and sets the time and temperature accordingly.
Vacuum sealing
The other aspect of sous vide cooking is that you should vacuum seal your food, before it goes in the bain marie. We bought our vacuum sealer from the middle aisle of Lidl, of all places – in fact, it was a Lidl in France, and so we have to use a UK plug adaptor with it. Again, if you need a vacuum sealer, Amazon will sell you one for around £23 (sponsored link), and expect to pay £11-£15 for two rolls of bags.
If you don’t want to buy one, then you may get away with just a regular plastic food bag with as much air squeezed out of it as possible.
What we’ve cooked using sous vide
I’m mentioned that we’ve cooked beef brisket using the sous vide technique, and indeed we’ve done so more than once. Brisket contains a lot of connective tissue, and so you need to use slower cooking methods to allow this tissue to break down. Sous vide is perfect for this, and after 30 hours, you’ll end up with a very meaty piece of meat.
We’ve also done duck confit this way, which then went into a cassoulet. Again, this was a long and slow recipe, taking around 12 hours with the cooking temperature set to 75° C.
It’s worth noting that, whilst you can cook steak using the sous vide method, you won’t get any browning on the outside. If this is something you want, then you’ll still need to flash fry the meat at a higher heat after it’s come out of the bain marie.
In summary, sous vide cooking, whilst requiring some forward planning and investing in the correct equipment, is also relatively easy. You can prepare some really tasty food ahead of time, and have it cook slowly at a regulated temperature. Plus, because the food is vacuum sealed, it’s a less messy way of cooking too. We don’t do it very often, but the few times we have done it have always been worth it.