I know how to make hot pepper infused tequila - why should I get all modernist and cook it sous vide?
Because, when I want spicy tequila, I want it as soon as possible. Regular infused tequila needs to steep overnight; by adding gentle heat, I can have spicy tequila ready in under an hour.
And, it’s easier to vary the amount of heat. I found 45 minutes at 135°F to be the perfect amount of time - it transfers the jalapeno taste and the right amount of spicy heat. If you want the jalapeno flavor with just a bit of heat, infuse the tequila for 30 minutes; if you want to blast your taste buds, infuse it for an hour, extracting all the heat from the peppers.
Most sous vide infusion recipes recommend pouring the alcohol into a gallon zip-top bag, but I found that unwieldy. And by “unwieldy”, I mean “I spilled tequila everywhere when the bag slipped.” A quart jar is much easier to deal with; it is the right size for a standard 750ml bottle of liquor.
Oh, and one other thing - what type of tequila? You want 100% agave, sliver or blanco tequila. If the label doesn’t say 100% agave, it can be up to 49% cheaper liquor - not good. Pay a few dollars extra for the 100% agave tequila. Don’t get “gold” tequila - it’s silver tequila with food coloring added to give it an amber color.
On the other end of the spectrum are reposado (rested) and anjeo (aged) tequila. They are aged in the barrel to add more complex flavors, and you pay more for the quality. Normally, aging is a good thing, but I find that the jalapeno infusion overwhelms the delicate aged flavors. I prefer the clean flavor of a silver tequila with the heat of the jalapeno.