107 Prime Rib Muscle | USDA Prime

The Ideal Cut for Home Dry Aging

The 107 Prime Rib Muscle is the cornerstone for creating exquisite dry-aged steaks at home. Sourced exclusively from select Midwestern farms, this USDA Prime certified cut offers the perfect balance of bone, fat, and muscle required for a successful aging program.

Unlike standard retail cuts, the 107 is prepared specifically for dry aging: the chine bone, blade bone, and cartilage are partially removed, and the short rib is slightly trimmed. This structure provides just enough protective fat and bone to shield the beautiful Ribeye steaks underneath, allowing them to develop deep, nutty flavors and exceptional tenderness over 45, 60, or even 70+ days.

Weighing approximately 35 lbs, this substantial piece fits comfortably in most home dry-aging refrigerators, making it a treasure trove for the seasoned home chef or professional. Each piece yields numerous thick, steakhouse-quality steaks once aged to perfection.

Why the 107 Stands Out

• USDA Prime Certified: Sourced from the top tier of beef, ensuring abundant marbling for that melt-in-your-mouth tenderness and rich beef flavor.
• Optimized for Aging: The specific trimming and bone structure protect the meat during the aging process, minimizing waste and maximizing flavor development.
• Midwestern Sourcing: Hand-selected from trusted farms known for producing Angus beef with optimal ribeye area and marbling scores.
• Generous Yield: A single 35 lb muscle provides a long-term supply of premium steaks, perfect for enthusiasts who value consistency and quality.

Sourcing & Quality

Our G1 Certified USDA Prime 107 Prime Rib represents the best Angus beef has to offer. We work specifically with a select group of Midwestern farms to ensure every piece meets our strict standards: abundant marbling, Grade 'A' maturity, and a ribeye area between 10.0 and 16.0 square inches. This ensures that every steak you cut from this muscle is thick, juicy, and deeply flavorful.

Frequently Asked Questions

What makes the 107 ideal for dry aging?

The 107 is a whole muscle cut with the chine and blade bones partially removed and the short rib trimmed. This leaves enough protective fat and bone to shield the ribeye muscle during the aging process, preventing excessive drying while allowing flavors to concentrate and tenderize.

How much does the 107 Prime Rib Muscle weigh?

Each piece typically weighs around 35 lbs, though some may be slightly larger. Because these are natural products, weights can vary. We may contact customers to adjust the final price if the piece exceeds the expected weight range.

Where is this beef sourced from?

We source our 107 Prime Rib Muscle exclusively from select Midwestern farms. These partners are chosen for their commitment to raising high-quality Angus cattle with abundant marbling and proper feeding programs, ensuring USDA Prime standards.

How should I store the 107 before aging?

Upon arrival, the 107 should be kept in a dedicated dry-aging refrigerator or a standard refrigerator set to the proper temperature (33–37°F) with good air circulation. Ensure the meat is unwrapped and placed on a rack to allow air to circulate around all sides.

How long can I age the 107?

The 107 is designed for extended aging programs. Many customers age this cut for 45, 60, or even 70+ days. The ample fat and bone protection allow for longer aging periods without excessive spoilage or waste.

Is this cut difficult to handle?

While large, the 107 is designed to fit in most home dry-aging fridges. Its shape makes it easy to place on a rack. Once aged, it can be portioned into thick ribeye steaks using a sharp knife or by asking your local butcher to cut it for you.

What is the difference between USDA Prime and Choice?

USDA Prime is the highest grade of beef, representing the top 2–3% of all beef produced. It features abundant marbling, which translates to superior tenderness, juiciness, and flavor compared to USDA Choice or Select grades.

Does the price include shipping?

Shipping costs are calculated at checkout based on your location. Due to the size and weight of the 107, shipping logistics are specialized to ensure the meat arrives in perfect condition. Free shipping is available in South Florida; rates may vary elsewhere.