Big bonuses for this month!

FREE SHIPPING ON ORDERS OVER $200 Start your order
Spend $300 → Unlock both a FREE 500g Grass-Fed Beef Mince & 350g Pure Wagyu Rump Steak SB 6-7

    20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3

    $1,600.00

    20kg Black Onyx rib fillet SB-3, 230 day grain finished. Exceptional eating quality, tenderness and rich marbling for premium wholesale steak programs.

    Pickup available at Peter Augustus Store Camp Hill

    Usually ready in 24 hours


    Buy 20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3

    Premium Black Onyx rib fillet delivering exceptional eating quality, rich marbling, and outstanding tenderness for high-end wholesale kitchens.

    Our Diamantina's 20kg Bulk Box of Black Onyx Rib Fillet Whole SB-3 offers an exceptional dining experience. Our Black Onyx Rib Fillet, with a marble score of SB-3, ensures outstanding tenderness and a rich flavour profile, thanks to excellent marbling. The 230-day grain-fed program enhances the texture, making each bite satisfyingly tender. Sourced from premium Australian cattle, this boneless rib fillet excels when grilled, pan-seared, or slow-roasted.

    Many buyers prefer our Black Onyx Rib Fillet over alternatives for its consistent quality and premium specification. Ideal for high-end kitchens and culinary enthusiasts, our rib fillet aligns with real purchasing needs for quality and flavour. Choose our product for an assured, flavourful experience that meets high expectations. Purchase our Black Onyx Rib Fillet today and enjoy the superb eating quality it promises.

    Product Overview

    • 20kg bulk box of Black Onyx rib fillet whole (SB-3)
    • Grain finished for a minimum of 230 days
    • Premium specification with excellent marbling
    • Deep beef flavour with superior tenderness
    • Australian family-owned

    Why Choose 20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3?

    Our 20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3 offers premium eating quality with an impressive marble score of SB-3, ensuring outstanding tenderness and flavor.

    • Marble score: SB-3 for superior marbling.
    • Grain-finished for 230 days, enhancing taste.
    • Cut from Black Onyx breed, ensuring quality.
    • Sourced from Australia, promising authenticity.
    • Rib fillet form, boneless for easier preparation.

    Performance & Quality

    • SB-3 specification for premium eating quality
    • Excellent marbling for tenderness and juiciness
    • Consistently high-end steak performance
    • Reliable texture for repeatable cooking results

    Wholesale Advantages

    • 20kg bulk format for efficient kitchen operations
    • Ideal for premium steak cutting and portion control
    • Strong yield with minimal waste when processed
    • Reliable supply for high-end food service menus

    Who Should Choose This 20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3?

    Our 20kg Bulk Box - Black Onyx Rib Fillet Whole SB-3 suits various buyers seeking premium beef quality. It offers excellent marbling and outstanding tenderness, perfect for enhancing high-end kitchen menus.

    • Chefs aiming to their restaurant offerings with premium beef quality.
    • Caterers looking for bulk options that deliver consistent tenderness and flavor.
    • Home cooks wanting to stock up on high-quality beef for special occasions.
    • Food service operators needing reliable cuts for upscale dining experiences.
    • Retailers seeking premium meats to attract discerning customers.

    Best Cooking Methods for Rib Fillet

    Grilling or pan-searing our Black Onyx Rib Fillet Whole SB-3 enhances its excellent marbling by rendering the fat perfectly, ensuring unmatched tenderness. This premium cut, grain-finished for 230 days, benefits from careful resting to lock in juices. Cooking methods vary based on heat sensitivity, preferred doneness, and the unique qualities of this rib fillet.

    Grilling: Use medium-high heat to sear each side for 4-5 minutes, letting the marbling develop a flavorful crust.

    Pan Searing: Preheat the pan to high, sear each side for 3-4 minutes, and rest the rib fillet for 5 minutes to maintain juiciness.

    BBQ: Opt for indirect heat, cooking for 8-10 minutes on each side, allowing the grain-fed beef's texture to shine.

    Oven: Slow-roast at 160°C for 20 minutes per 500g, ensuring the SB-3 grade marbling melts evenly throughout.

    Delivery & Storage

    Delivered fresh chilled in vacuum-sealed packaging for maximum freshness.

    • Store refrigerated at 0–4°C
    • Consume by the use-by date or freeze on arrival
    • Keep vacuum sealed until ready to use
    • Thaw under refrigeration before cooking if frozen
    • Do not thaw at room temperature
    • Do not refreeze once thawed

    Rib Fillet

    Rib Fillet, also known as Cube Roll, Ribeye, Scotch Fillet, Prime Rib (when bone-in) is a premium beef cut known for its rich marbling, tenderness, and full-bodied flavour. Taken from the rib section, it’s ideal for slicing into ribeye steaks or roasting whole. This cut delivers consistently juicy results whether grilled, pan-seared, or slow-roasted.

    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.