Premium cuts, special prices every Monday.
20kg Wagyu sirloin SB 4-5, 320 day grain finished. Exceptional eating quality, balanced marbling and refined flavour for premium wholesale steak programs.
Pickup available at Peter Augustus Store Camp Hill
Usually ready in 24 hours
Diamantina's 20kg Bulk Box of Wagyu Sirloin Whole SB 4-5 offers an exceptional eating experience with its premium Wagyu breed. The balanced marbling of our sirloin delivers a tender texture and rich flavor, enhanced by a grain-finished feeding program of at least 320 days. Sourced directly from Australia, our Wagyu Sirloin is known for its consistent performance in both high-end wholesale kitchens and home cooking. Our sirloin suits a variety of cooking methods such as roasting or steak cutting, ensuring each meal is a delight. The carefully monitored freshness and chilled handling preserve the quality from farm to table.
Buyers seeking high-quality bulk beef often choose our Wagyu Sirloin for its reliable texture and flavor profile. Ideal for restaurants, caterers, or home chefs who value superior taste and marbling, our sirloin meets both everyday and special occasion needs. With the assurance of Diamantina's commitment to quality and consistency, our Wagyu Sirloin is a wise investment for those who appreciate fine dining at home or wish to impress guests. Purchase now to enjoy the unmatched quality of our Wagyu Sirloin.
Our 20kg Bulk Box - Wagyu Sirloin Whole SB 4-5 offers exceptional eating quality with its premium Wagyu marbling, making it a top choice for high-end wholesale kitchens.
Our 20kg Bulk Box - Wagyu Sirloin Whole SB 4-5 is securely packed for transit with optimal care.
Our 20kg Bulk Box - Wagyu Sirloin Whole SB 4-5 suits chefs and wholesale buyers seeking quality and quantity. This premium Wagyu beef, with a marble score of 4-5, offers consistent taste and performance.
Wagyu Sirloin Whole SB 4-5 offers extraordinary versatility in cooking methods, ensuring balanced marbling and exceptional eating quality. When pan seared, grilled, BBQed, or oven-roasted, it delivers consistent performance with premium Wagyu taste. The grain-finished texture allows for optimal fat rendering, making it ideal for high-end wholesale kitchens. Our Wagyu Sirloin remains tender and flavorful, meeting the expectations of discerning palates.
Pan Sear: Use medium-high heat, searing each side for 3-4 minutes. Allow the sirloin to rest for 5 minutes to juiciness.
Grill: Preheat the grill to medium, cooking each side for 5-6 minutes. Rest our Wagyu Sirloin for 5 minutes to let the juices redistribute.
BBQ: Set BBQ to medium heat, cooking for 12-15 minutes, turning every 4 minutes. Rest for 5 minutes for optimal texture.
Oven: Preheat to 180°C, roast for 20 minutes. Rest for 10 minutes post-roast to ensure a tender finish.
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.
