Rare seared tuna might have fallen off the menus of the most fashionable restaurants, where it ruled the scene from the late 90s through the 2000s, but that doesnt make it any less delicious. Ideally, seared tuna should have a dense, meaty center and a thin, thin layer of browned meat on the exterior.
Historically, this has meant tuna served in the style of tataki, a traditional Japanese preparation in which the bulk of the tuna is essentially cold and raw. With the precise control of a sous vide cooker, you have a few more options. Rather than cold and raw in the center, you can serve tuna thats heated just to the point of starting to firm up, giving it an even meatier bite while maintaining a gorgeous, translucent deep red color and moist texture.
Sous vide is also a great way to prepare tuna to be served nearly raw, sashimi-style, or to be used in recipes where youd typically use canned tuna, giving you better texture and flavor than any canned option.
You can use fresh or frozen. If using frozen, just make sure to thaw them first. The tuna is seasoned with salt and pepper before cooking in the sous vide, and then seared with avocado oil. (If you don’t have avocado oil, use another high smoke point oil).
Option 2: Chill It
Sous vide tuna is great served cold. At 105°F, it can be sliced and served like sashimi, though it will have a unique texture all its own. Try brushing it with a little soy sauce and extra-virgin olive oil and sprinkling it with some coarse sea salt for a simple, delicious hors doeuvre.
If you want to go the canned-tuna-texture route, you can use tuna cooked to 130°F in any recipe where youd use canned tuna, like tuna salad, or stir it into pasta dishes like tuna noodle casserole or spaghetti puttanesca.
Should I Brine?
Many recipes for sous vide tuna recommend soaking the fish in a saltwater brine before cooking, in order to season it more deeply and to give it a denser, firmer texture. I tried cooking a few pieces of tuna side by side: one plain, one soaked in a liquid salt and sugar brine, one soaked in a plain salt brine, one rubbed (dry-brined) with salt and sugar, and one rubbed with salt alone. For the brined and dry-brined tuna pieces, I tested various brining times, ranging from 15 minutes up to overnight. I cooked each sample of tuna sous vide at two different temperatures—105°F and 115°F—for 45 minutes, then tasted them.
The difference is quite striking, with both the tuna that was water-brined and the tuna that was dry-brined coming out with firmer, more pleasant flesh. Without any brine, tuna at lower temperatures is relatively bland, even if its seasoned right before serving; at higher temperatures, it tastes dry and chalky. With brine, low-temperature tuna has a smooth, buttery texture; at higher temperatures, its still dry, but not nearly as dry as the un-brined samples.
I found sugar in the brine to be distracting, though, if you like the extra sweetness, feel free to add it. I prefer dry-brining to water-brining for the sake of convenience: All you have to do is salt your tuna, seal it in a bag, then let it rest before cooking. Half an hour seems to be the magic number—youll get a strong brining effect, but still keep things moving along in time for dinner.
Sous Vide Ahi Tuna Steak, The best fish we had so far! Sous Vide is perfect for this!
FAQ
How do you cook frozen tuna steak sous vide?
Is it safe to cook tuna from frozen?
Does tuna have to be thawed before cooking?
Can frozen ahi tuna be seared?
Can You sous vide frozen tuna steak?
If you’re not enjoying your tuna immediately, remove it from the sous vide and place it in an ice bath for 10 minutes. Then, store in the fridge for up to 3 days before finishing and serving. How To Sous Vide Frozen Tuna Steak: If you’re using frozen fish, add 15 minutes more of cooking time to ensure its thawed properly.
What are the health benefits of eating tuna fish canned in olive oil?
Tuna in oil is a better option, because when the fish is canned with water, if metals are present, they are deposited in it and, during consumption, they come into contact with the organism. On the other hand, the oil option is ideal, as the oil will be discarded and, along with it, the metals will also be.
How to sous vide tuna?
Fill your water bath with water, and set the sous vide machine to heat the water to your desired temperature. Add the tuna chunks to zip lock or sous vide bags and add the oil and the lemon zest. Seal the sous vide bags with the best sous vide vacuum sealer or remove all the air from the zip lock bags and close them.
Can you eat sous vide tuna cold?
Sous vide tuna is great served cold. At 105°F, it can be sliced and served like sashimi, though it will have a unique texture all its own. Try brushing it with a little soy sauce and extra-virgin olive oil and sprinkling it with some coarse sea salt for a simple, delicious hors d’oeuvre.