Doesn't wagyu beef need to rest?
One of the core advices when cooking beef is to allow it to rest at least five minutes before cutting it. But I have seen several videos where Japanese chefs cuts the wagyu beef into small pieces while it is still cooking. Here is one example: https://youtu.be/-kzYJqKkAZ0?t=249
What am I misunderstanding here?
Best Answer
"Let it rest" is advice for cooking large cuts of meat in one piece, especially if it's desirable for the end result to be on the rare side. So steaks, roasts, pork tenderloin, that sort of thing, you want to let the meat rest (== cool down) so that when you slice into it, you don't get a huge puddle of hot juices all over your cutting board, and no tasty hot juices in the meat where you want it.
Note that this doesn't depend on the type of meat, only on the desired end result. For an analogy, consider bread dough. Sure, you can cut it into little pieces and fry or bake them up individually, but that doesn't make bread, it makes fried dough or dinner rolls. (Mmmm... now I crave lángos.) If you want bread, you need to bake the dough in one piece, and then let it cool down before you slice it so you don't end up with a gummy mess.
The Teppanyaki chef is making the meat equivalent of lángos (= fried dough). Apart from using the same ingredients as a steak, it's a completely different dish.
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Quick Answer about "Doesn't wagyu beef need to rest?"
And the best way to do it is to put it in the fridge and let it sit in it for six hours per pound of meat. Once it is thawed, you should take it out of the fridge, let it rest for half an hour, and then cook it. The best way to cook Wagyu steak is when it's at room temperature if you want it cooked evenly.Does Wagyu have to rest?
Let it rest in a warm place for 5 minutes (for steaks) or 15-20 minutes (for roasts). During this time, the temperature rises by several degrees, thus finishing off the cooking process. Resting the meat also allows the juices to redistribute evenly, ensuring a tender, juicy eating experience.Can you mess up Wagyu?
Due to its prized DNA, this beef can be accidentally overcooked without becoming too tough, firm, or dried out. Since the fat marbling found within it can melt at a lower temperature, a consumer can taste the savory fat much sooner than other beef.Can you over cook Wagyu beef?
What temperature should you eat it? The best way to eat Wagyu steak is rare to medium rare. You do not want to overcook the steak because the fat will melt and you will loose its buttery, rich flavor.Should Wagyu be at room temperature?
The Steps to Perfectly Seared and Cooked Japanese-Style Wagyu: Take meat out of the fridge and unwrap it. Wait until it reaches room temperature (around 30 minutes) Pat the meat dry.Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Gustavo Fring, Mehmet Turgut Kirkgoz, Chitokan, Vinícius Caricatte