re: Costco Prime Whole Brisket on sale

quote:

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Beef is graded solely on the ribeye. A “prime” brisket just means that it came off of a cow that had a prime ribeye. Theoretically, a “choice” brisket could have better marbling than a given “prime” brisket.

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“Theoretically”

Of course there is a reason why they inspect a specific portion of the rib determine there grade of the cow. As they say, “ribeye don’t lie”