Sorry to hear your NY strip came out rubbery. That's a real bummer, but it's usually a pretty easy fix. Here are the most common culprits:
Pre-Sous Vide Salting. The timing of when you salt your steak can influence its final texture. Extended Salting: Salting a steak long before it goes into the sous vide bath can have a curing effect, drawing out moisture and altering the protein structure. If left for an extended period, this can result in a firmer, almost ham-like texture that can be perceived as rubbery. For this reason, many chefs opt to salt just before bagging or even after the sous vide process, right before searing.
- Not Enough Time/Wrong Temp: A short cook time (like under 90 minutes) might not be long enough to really let the connective tissue and fat break down and get tender, even if the steak hits the right temp. For a good 1.5-2" NY strip, you're looking for at least 1.5 to 4 hours in the bath. A temp around 130-135°F is the sweet spot for medium-rare that also helps that fat render.
- I perfer 3hrs @ 132°F with a 1 tbs of butter to add moisture and flavor.
- The Fat Didn't Render: That big fat cap on a NY strip is delicious when it's soft, but it's pure rubber if it doesn't render. A slightly higher temp (like the 130-135°F mentioned above) helps a lot. You really need to pay attention to that fat during the sear, too.
- The Sear is EVERYTHING: This is the big one. A steak out of the bag is gonna feel soft and weird. You have to finish it with a screaming hot sear.
- Get it DRY: Pat it down with paper towels until it's bone dry. Wet steak steams, it doesn't sear.
- Get it HOT: Use a cast iron or a grill that's ripping hot.
- Sear it FAST: 45-60 seconds per side is all you need. The goal is a dark brown crust, not to cook the inside any more.
That crust gives you the texture contrast you need. Without it, the whole thing just feels uniformly soft, which the brain can read as "rubbery."
Check those three things on your next cook and you should be golden. Happy smoking (and sous viding)