Tip #10: Pre-Cut Choice Top Sirloin Steaks
Top sirloin is traditionally marketed as a lean, economical everyday steak, but Costco’s pre-sliced packages miss the mark on true value.
Top sirloin lacks the rich intramuscular marbling found in ribeyes or strip loins, which makes it inherently prone to drying out when cooked over high direct heat.
When Costco subjects these lean pre-cut sirloins to mechanical blade tenderization, moisture escapes even faster during the searing process.
Because USDA safety guidelines require cooking blade-tenderized cuts to 145°F, you are almost guaranteed a dry, tough, overcooked piece of meat.
If you want lean, affordable beef with high flavor, purchase whole sirloin caps or stick to USDA Choice flank steaks, which cook quickly and retain moisture far better when sliced across the grain.
