Sous-vide is a wonderful cooking technique, but it’s not an ideal option for anyone tight on either budget or space. Our ‘prosumer’ water bath (the SousVide Supreme) is the size of a small microwave and has a list price on the wrong side of £370. Even disregarding the price angle, kitchens are already groaning under the weight of numerous popular appliances; the need to find space for a bulky water bath next to the toaster, the food processer, the stand mixer, the blender, the microwave, the deep fat fryer, the rice cooker, the juicer and the slow cooker rules out a traditional sous vide machine even for many who can afford it.
Hang on a minute… the slow cooker… the slow cooker is half-way to a water bath already; it’s a large container that can heat liquid (such as water!) for hours at a time.
Wouldn’t it be great to have a small device that could convert an existing slow cooker to a sous vide water bath by way of accurately controlling the temperature of the water inside? Well of course, that’s where Codlo steps in.
Codlo is one of those ideas that’s really obvious once someone else has had it, not to mention done all the hard graft in getting it to work. This clever device turns your slow cooker – or rice cooker, or tea urn, or anything else that holds and heats water – into your very own sous vide water bath. Essentially Codlo is a small plug-in gadget with a temperature probe which allows it to turn the power of the attached appliance on and off and on in order to achieve and maintain your target temperature. That’s the theory but how does it work out in practice?
The short answer is, remarkably well.
In the name of science, we cooked two identical steaks (here’s my guide to cooking steaks sous vide) – one in our SousVide Supreme and the other in our venerable old Breville slow cooker attached to the Codlo. After cooking one steak in each bath, we fried them together in the same pan for exactly the same amount of time before tucking in to a delicious dinner, each of us eating half of each steak. We genuinely couldn’t perceive any difference in the end result; texture and level of cooking were identical.
That’s not to say that the Codlo-controlled Breville performs identically to the SousVide Supreme. Firstly, it takes a little longer to come up to temperature – but that’s understandable, as our slow cooker is a 290W model and we ran it on Low (we will try the High setting next time) whereas the SousVide Supreme is rated at a much higher 550W. Given that sous-vide cooking is usually a long process, adding an extra 15 minutes at the start isn’t a big deal for us. Of course, this difference also depends on what appliance you plug the Codlo into – a more powerful appliance will likely reach temperature just as quickly as the SousVide Supreme.
Also worth noting is that the temperature in the Codlo-controlled Breville takes a little time to settle; it (deliberately) sails past the target by a couple of degrees, drops below it when the food is added and gradually heats back up again. However, once it’s settled at the target temperature – around 10-15 minutes on our slow cooker’s Low setting – it’s rock steady, varying less than the SousVide Supreme. And the food seems to be none the worse for wear because of that initial temperature variance. The makers of Codlo advise us that the device adapts to each individual cooker it is attached to so these times will likely vary depending on the appliance you use.
In addition to the Codlo controller, there is also an accompanying cookery book – Codlo Sous-Vide Guide & Recipes – full of information on the sous vide cooking technique, on temperatures and times for different types of foods and lots of tempting recipes. This would be useful not just to Codlo users but to anyone starting out in sous vide cooking and I’m hoping to share a recipe or two from the book soon.
Codlo does everything it promises, turning inexpensive equipment we already owned into a functional sous vide water bath, with results that equal our bulky and pricy prosumer alternative.
Kavey Eats received a Codlo for review purposes. Codlo is priced at £119, available here. This is an affiliate link, please see blog sidebar for further information.