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    20kg Bulk Box - Black Onyx Rump Whole SB-3

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    $670.00

    20kg Black Onyx rump whole SB-3, 230 day grain finished. Exceptional eating quality, rich flavour and versatility for premium wholesale kitchens.

    Pickup available at Peter Augustus Store Camp Hill

    Usually ready in 24 hours


    Get cuts tailored to your kitchen

    Want it portioned a certain way? Add your cutting and packing instructions in the order note at checkout. Our expert butchers are more than glad to process it for you.

    Order summary · Add order note
    Cutting and packing instructions, for example portion the rump into 300g steaks and vacuum pack in pairs.

    Buying in bulk for a venue?

    Open a wholesale account

    Restaurants, cafes and caterers buy our premium beef in bulk at trade pricing on volume. Net terms for approved accounts, a dedicated account manager, and the same consistent quality on every delivery.

    • Trade pricing on volume
    • Australian family owned
    • Consistent quality on every delivery
    • Built around your needs
    • Dedicated account manager and net terms
    Trade pricing applies once your account is approved. Prices exclude GST and delivery.

    Buy 20kg Bulk Box - Black Onyx Rump Whole SB-3

    Premium Black Onyx rump delivering exceptional eating quality, rich beef flavour, and reliable performance for wholesale kitchens.

    Diamantina's 20kg Bulk Box - Black Onyx Rump Whole SB-3 offers a premium eating experience with its SB-3 marble score, ensuring a strong balance of flavour and tenderness. Our Black Onyx breed, known for its superior quality, benefits from a grain-finished feeding program for a minimum of 230 days, enhancing the texture and juiciness of each cut. Sourced from Australia, our Black Onyx Rump delivers consistent texture and reliable cooking results whether pan-seared, grilled, or roasted.

    Buyers choose our Black Onyx Rump Whole for its versatility and unmatched flavour profile, ideal for chefs and home cooks alike seeking reliable cuts for various dishes. Those who appreciate premium beef will find our product perfect for both everyday meals and special occasions. Our commitment to quality, from breed to feeding program, assures that our Black Onyx Rump meets the highest standards, encouraging you to shop with confidence for your culinary creations.

    Product Overview

    • 20kg bulk box of Black Onyx rump whole (SB-3)
    • Grain finished for a minimum of 230 days
    • Premium specification with enhanced eating quality
    • Excellent marbling with deep beef flavour
    • Australian family-owned

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

    Diamantina's 20kg Bulk Box - Black Onyx Rump Whole SB-3 provides premium eating quality with a strong balance of flavour and tenderness for versatile performance. 

    • Marble score 3 ensures a consistent texture.
    • Grain-fed for a minimum of 230 days.
    • Originates from Australia, guaranteeing quality.

    Performance & Quality

    • SB-3 specification for premium eating quality
    • Strong balance of flavour and tenderness
    • Consistent texture for reliable cooking results
    • Versatile performance across multiple applications

    Wholesale Advantages

    • 20kg bulk format for efficient kitchen operations
    • Ideal for slicing, roasting, and steak production
    • Strong yield with minimal waste
    • Reliable supply for high-volume food service

    Why This Product

    • Premium all-rounder with excellent versatility
    • Delivers consistent, high-quality eating results
    • Ideal for operators needing reliability at scale
    • Balances performance, flavour, and efficiency

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

    Our 20kg Bulk Box - Black Onyx Rump Whole SB-3 is ideal for chefs, caterers, and food service professionals who require superior quality beef with a consistent texture and strong flavour balance for reliable cooking results.

    • Catering businesses needing reliable bulk beef supply 
    • Restaurants seeking premium grain-fed rump for varied menu options 
    • Event planners looking for versatile beef cuts for large gatherings 
    • Home cooks preparing for family events or celebrations 
    • Steak enthusiasts wanting to stock up on quality beef for personal use

    Best Cooking Methods for Rump

    Achieving the ideal cooking outcome with our 20kg Bulk Box - Black Onyx Rump Whole SB-3 requires understanding its unique qualities. This Black Onyx Rump, with its premium grain-fed finish, excels in fat rendering and tenderness when cooked with the right methods. Proper heat management and resting are key to unlocking its strong balance of flavour and consistent texture.

    Pan Sear: Use medium-high heat for a precise sear, sealing in juices. Rest for 5 minutes to allow flavours to meld.

    Grill: Opt for medium heat to ensure even cooking. Flip once for optimal tenderness and rest briefly.

    BBQ: Utilise indirect heat for gradual fat rendering, creating a succulent roast. Let it rest for enhanced taste.

    Oven: Roast at 180°C for reliable results, maintaining the beef's juicy consistency. Resting is crucial for full flavour development.

    Understanding these techniques will guide you to savour the full potential of our Black Onyx Rump, making it a worthy addition to your culinary repertoire.

    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

    Rump

    Rump steak is a lean, flavourful cut taken from the hindquarter of the animal. Known for its firm texture and bold beef taste, it’s a versatile favourite that performs well on the grill, in stir-fries, or as a roast. Cut thick for steaks or diced for hearty meals, rump offers value without compromising on quality.