Premium cuts, special prices every Monday.
The Diamantina Grain-Fed Sirloin Whole 6kg is the ideal cut for those who appreciate balanced flavour, fine texture, and consistency in every slice. Whether you're hosting a large gathering or looking to portion your own premium steaks, this full striploin offers outstanding value and performance.
Pickup available at Peter Augustus Store Camp Hill
Usually ready in 24 hours
The Diamantina Grain-Fed Sirloin Whole (approx. 6kg) is the ideal cut for those who appreciate balanced flavour, fine texture, and consistency in every slice.
Diamantina's Grain-Fed Sirloin promises a culinary experience defined by ensuring exquisite texture and flavor. Our premium grain-fed feeding program enriches the sirloin with a unique tenderness and a rich, savory taste profile, making it ideal for discerning palates. Sourced from 100% Australian Beef, this boneless sirloin cut is perfect for grilling or roasting, delivering exceptional cooking performance. This whole sirloin is vacuum sealed for freshness, guaranteeing a high-quality eating experience with every slice.
Buyers often select our Grain-Fed Sirloin Whole 6kg for its perfect balance of flavor and tenderness, making it an excellent choice for hosting large gatherings or fine dining occasions. Whether you're an avid home chef or catering a special event, our sirloin provides consistent quality that meets high expectations. Invest in Diamantina's Grain-Fed Sirloin Whole for a reliable, satisfying meal experience, and enjoy the assurance of premium Australian beef in each serving.
Diamantina's Grain-Fed Sirloin is ideal for those seeking a premium cut for various culinary occasions. Its versatile nature makes it suitable for multiple buyers and events.
Our Grain-Fed Sirloin is perfect for achieving a succulent and tender finish, thanks to its optimal fat rendering. Ideal for chefs and home cooks alike, this sirloin's boneless form ensures even cooking across methods like pan-searing, grilling, barbecuing, or oven roasting. Enjoy consistent results by adjusting heat levels to your preferred doneness.
Pan Sear: Use a medium-high heat to quickly sear both sides, locking in juices. Allow the sirloin to rest for a few minutes before slicing to ensure tenderness.
Grill: Preheat your grill to a medium setting. Grill each side for approximately 6-8 minutes, depending on thickness, to achieve a perfect medium-rare doneness.
BBQ: Set your barbecue to a medium-low heat. Cook slowly to render the fat fully, enhancing flavor and ensuring a melt-in-your-mouth experience.
Oven: Roast at 180°C (350°F) for 20-25 minutes per kilogram. Let the sirloin rest after cooking to allow the juices to redistribute for maximum flavor and juiciness.
Store at or below 4 degrees Celsius
Cook thoroughly before consumption.
For best quality, use before the recommended best-before date.
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.
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.
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.
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:
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.
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.
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.
We offer a range of pickup and delivery options to suit you:
All delivery orders are packed in a food-safe, insulated chilled box with ice packs to maintain safe temperatures throughout transit.
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.
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.
While the outer carton may show signs of handling during delivery, the internal insulation is specifically built to protect the contents and preserve freshness.
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.
