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    20kg Bulk Box - Wagyu Sirloin Whole SB 6-7

    $1,960.00

    20kg Wagyu sirloin SB 6-7, 320 day grain finished. Rich marbling, buttery tenderness and exceptional eating quality for premium wholesale steak programs.

    Pickup available at Peter Augustus Store Camp Hill

    Usually ready in 24 hours


    Buy Diamantina 20kg Bulk Box - Wagyu Sirloin Whole SB 6-7

    Ultra-premium Wagyu sirloin delivering rich marbling, exceptional eating quality, and refined tenderness for high-end wholesale steak programs.

    Product Overview

    Diamantina's 20kg Bulk Box of Wagyu Sirloin Whole SB 6-7 offers an ultra-premium dining experience characterized by a rich marbling score of 6-7. This marbling ensures our Wagyu Sirloin delivers refined tenderness and a sumptuous flavor profile that satisfies discerning palates. The grain-finishing program, lasting at least 320 days, enhances the natural quality, creating a beef cut with exceptional eating qualities. Sourced from Australia, our Wagyu Sirloin presents a consistent texture, making it ideal for various cooking methods such as grilling, pan-searing, or oven roasting.

    Buyers prioritizing quality and indulgence in their meals often choose our Wagyu Sirloin Whole SB 6-7 for its superior breed quality and consistent texture. Professional chefs and culinary enthusiasts find its high-end attributes perfect for creating memorable dishes. The combination of Diamantina's commitment to quality, the Wagyu breed, and Australian sourcing ensures a purchase that guarantees satisfaction. Make your next meal memorable with our Wagyu Sirloin, and experience the difference. Shop now for a premium beef experience.

    Why Choose 20kg Bulk Box - Wagyu Sirloin Whole SB 6-7?

    Choose our 20kg Bulk Box - Wagyu Sirloin Whole SB 6-7 for its unparalleled marbling and refined tenderness that promises exceptional eating quality.

    • Grain finished for 320 days
    • Australian origin
    • Wagyu breed
    • Marble score SB 6-7
    • Whole sirloin cut
    • Ultra-premium Wagyu sirloin
    • Consistent high-end wholesale steak supply

    Performance & Quality

    • SB 6-7 grading for increased marbling and richness
    • Buttery tenderness with refined texture
    • Excellent structure for consistent cooking performance
    • Deep, clean Wagyu flavour profile

    Wholesale Advantages

    • 20kg bulk format for efficient kitchen operations
    • Ideal for premium steak cutting and portion control
    • High yield with minimal trimming loss
    • Consistent premium quality for fine dining menus

    Delivery & Storage

    Our Wagyu Sirloin Whole SB 6-7 is expertly packed for transit in robust containers. 

    • Vacuum sealed for optimal freshness 
    • Insulated thermal packaging with ice packs 
    • Refrigerated transport ensures temperature control 
    • Refrigerate or freeze upon arrival

    Who Should Choose This 20kg Bulk Box - Wagyu Sirloin Whole SB 6-7?

    Our 20kg Bulk Box - Wagyu Sirloin Whole SB 6-7 is ideal for chefs or restaurants seeking premium quality beef to their menu offerings. The Wagyu breed, known for its rich marbling and refined tenderness, ensures an exceptional dining experience with every serving.

    • Catering businesses wanting to impress clients with ultra-premium Wagyu sirloin 
    • Home cooks preparing for large family gatherings and celebrations 
    • Foodservice providers running high-end wholesale steak programs 
    • Retailers offering exclusive cuts to discerning customers 
    • Event planners organizing gourmet dining events

    Best Cooking Methods for Sirloin: Pan Sear, Grill, BBQ or Oven

    Our Wagyu Sirloin Whole SB 6-7 offers a rich marbling that enhances flavor and tenderness, making it ideal for various cooking methods. The grain-finished Wagyu beef ensures that every slice delivers exceptional depth in taste and texture. To achieve the best results, consider these cooking techniques:

    Pan Sear: Use medium-high heat to sear the Wagyu sirloin for about 3-4 minutes per side. This method ensures a perfect crust while maintaining the juicy interior.

    Grill: Preheat the grill to medium. Grill each side of the sirloin for 5-7 minutes, allowing the fat to render and infuse the meat with flavor.

    BBQ: Cook the Wagyu sirloin over indirect heat for approximately 20 minutes, turning occasionally. This slow cooking method enhances the meat’s tenderness and flavor profile.

    Oven: Roast the sirloin at 180°C (350°F) for 30-40 minutes. This method is perfect for achieving a consistent doneness throughout the cut. 

    Select a cooking method that suits your taste and enjoy the premium quality of our Wagyu Sirloin Whole SB 6-7.

    Striploin

    Striploin, also known as Sirloin, New York Strip, or Porterhouse (when bone-in), is a premium cut prized for its bold flavour and balanced tenderness. It comes from the short loin of the cow and features a fine grain with a satisfying bite. It's a favourite among chefs and home cooks alike for its generous marbling and robust, beefy taste.

    Frequently Asked Questions

    Our Beef

    Where does our beef come from?

    All of our beef is from our parent company Stanbroke Beef. This is important as the quality of the beef and ultimately your eating experience is determined by the care that has been shown to the animal during each stage of the production process. Any undue stress the animal experiences at any stage of its life is detrimental to the beef it will produce.

    As Stanbroke owns and operates each stage of the production process, strict best practices are followed to ensure the animals always receive the highest of care and that’s why at Peter Augustus we can guarantee the quality of our product each and every time.

    SB Marble Scores

    What is an SB Marble Score?

    The SB Score measures intramuscular fat (the white flecks in the meat). Higher scores mean more marbling, which results in superior tenderness, juiciness, and a richer, buttery flavour.

    Which score should I choose?

    • SB 0–2: Leaner, traditional beef flavour with a robust texture.
    • SB 3–5: Our "everyday premium" level; a perfect balance of flavour and tenderness.
    • SB 6–10: The indulgent peak, featuring extreme marbling for a melt-in-your-mouth experience.

    Meat Quality & Colour

    What is vacuum sealing and how does it extend shelf life?

    Vacuum sealing removes air from the packaging, slowing oxidation and bacterial growth to extend freshness and shelf life. When stored correctly at 0–4°C, you can expect the following guide:

    • Beef primals & whole cuts: up to 28 days
    • Beef (steaks): up to 21 days
    • Beef (bone-in): up to 14 days
    • Lamb: up to 28 days
    • Pork: up to 10 days
    • Ham: up to 30 days
    • Sausages: up to 9 days
    • Chicken (frozen): up to 12 months
    • Salmon (frozen): up to 12 months
    • Smoked salmon: up to 30 days

    For longer storage, keep products frozen at -18°C, where vacuum sealed meat can last 1 to 3 years depending on the cut and consistency of temperature.

    Once opened, the shelf life reverts to that of standard fresh products, so we recommend consuming promptly.

    For longer delivery routes, some items may arrive partially or fully frozen to ensure they remain within safe temperatures during transit.

    Why is my steak dark in the vacuum pack?

    Our beef is vacuum sealed to lock in freshness and extend shelf life by removing oxygen. This can cause the meat to appear darker or slightly purplish due to natural myoglobin, which is completely normal.

    Once opened, simply let your steak rest out of the packaging for 10 to 20 minutes. As it’s exposed to air, it will “bloom” back to its natural rich red colour. Rest assured, your beef is fresh and perfectly safe to enjoy.

    Is it safe to eat?

    Yes. If the “Use By” date is within range your meat is fresh. Any colour variation from vacuum sealing is normal and will return to its natural red once opened and allowed to bloom.

    Delivery & Packaging

    What are your delivery fees?

    We offer a range of pickup and delivery options to suit you:

    • Free pickup is available from our Camp Hill store in Brisbane. Simply select pickup at checkout.
    • Free shipping is available on subscription-only orders.
    • Free shipping is automatically applied to orders over $200.
    • Refrigerated delivery starts from $30 (including GST), with final pricing based on your location, order size, and weight. Enter your address at checkout to calculate the exact rate.

    All delivery orders are packed in a food-safe, insulated chilled box with ice packs to maintain safe temperatures throughout transit.

    Can I request custom cutting instructions?

    Yes, our butchers are happy to accommodate custom cutting requests where possible and safe to do so. For example, you may like a rump cap portioned into steaks. Simply specify your preferred thickness or weight per piece, such as approximately 2.5cm or 300g portions.

    You can add these instructions in the “View Cart” section before checkout using the notes box or send them through to us via email.

    How is my order kept cold?

    We use specialist refrigerated courier partners to keep your order within the cold chain from dispatch to delivery. Each order is packed in a thermal carton lined with VISYCELL® sustainable insulation, a food-grade, biodegradable material designed to maintain a consistent chilled temperature throughout transit.

    We also include large 1kg ice gel packs in every box to help keep your products at optimal temperature. Our packaging has been tested to maintain safe temperatures for a few hours after delivery when left in a shaded area.

    My box arrived looking a bit scuffed. Is the meat okay?

    While the outer carton may show signs of handling during delivery, the internal insulation is specifically built to protect the contents and preserve freshness.

    What should I do if I have concerns?

    If you detect any issues with the temperature or seal of your products upon arrival, please contact our team immediately so we can find a solution for you.