USDA Prime grade beef loin tri-tip steak, sourced from the bottom sirloin. This premium cut features exceptional marbling for superior tenderness and rich beef flavor. USDA Prime is the highest quality grade, representing only 2-3% of all beef produced in the United States, ensuring outstanding taste and texture.

The tri-tip typically weighs between 2 and 3 pounds with almost no waste fat or gristle, providing excellent value. This cut is blade-tenderized by Costco for enhanced tenderness. Best when cooked to medium-rare (130-135°F) and sliced thinly against the grain to maximize tenderness. Due to blade tenderization, cook to a minimum internal temperature of 145°F for food safety, or use low-and-slow cooking methods like sous vide or smoking to achieve lower temperatures safely.

Versatile cooking methods include grilling, smoking, sous vide, or reverse searing. Popular seasonings include simple salt and pepper, Montreal steak seasoning, or seasoned salt. The tri-tip's full-flavored profile pairs well with compound butters, garlic, or fresh herbs like rosemary.