[{"id":415660277968,"handle":"all-products","title":"All Products","updated_at":"2026-07-14T21:05:25+10:00","body_html":"\u003ch2 data-start=\"147\" data-end=\"518\"\u003eExplore the full Peter Augustus range\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-start=\"147\" data-end=\"518\"\u003eFrom award-winning Wagyu and Angus beef to artisan sausages, pork, lamb, poultry, and specialty condiments. Every product is carefully selected and prepared by our expert butchers, offering restaurant-quality ingredients for your home kitchen. Whether you're after everyday staples or something to impress, you'll find it all here.\u003c\/p\u003e","published_at":"2025-06-30T14:04:53+10:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"global","image":{"created_at":"2025-10-20T12:27:50+10:00","alt":"Assorted packaged meats with Diamantina branding on a white background","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/Box_6_-_The_Angus_Selection_Box_2_d5b698d6-320f-45a7-bfd0-83ba5ecf1983.webp?v=1779337195"}},{"id":412989391056,"handle":"beef","title":"Beef","updated_at":"2026-07-14T21:05:25+10:00","body_html":"\u003cp\u003eShop premium beef at Peter Augustus, featuring exceptional Wagyu, Angus, grain-fed, and grass-fed beef sourced from trusted Australian producers and expertly butchered for outstanding quality. Our collection includes premium beef steaks, loin of beef, roasting joints, BBQ favourites, and versatile beef cuts selected for their marbling, tenderness, and rich natural flavour. Whether you are firing up the barbie, pan frying a steak, preparing a family roast, or filling the freezer with quality beef meat cuts, you will find some of the finest cuts of beef Australia has to offer. Buy beef online with confidence and enjoy convenient delivery straight to your door, plus the flexibility of Afterpay with four interest-free payments. Honest Australian beef, expertly prepared and ready for every occasion.\u003c\/p\u003e","published_at":"2024-10-22T15:22:40+10:00","sort_order":"created-desc","template_suffix":"","disjunctive":false,"rules":[{"column":"type","relation":"equals","condition":"Beef"}],"published_scope":"global","image":{"created_at":"2025-10-20T12:27:36+10:00","alt":"Raw Wagyu rump cap steak on wire rack with a bowl of coarse salt on marble background","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/PA_WagyuRump_BeefCollections_31db8068-2d78-426e-8358-411a9c02544d.webp?v=1779163629"}},{"id":417129726160,"handle":"best-sellers","updated_at":"2026-07-14T21:05:25+10:00","published_at":"2025-10-23T01:12:27+10:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Best Sellers","body_html":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eExplore the Best-selling selections in our premium range at Peter Augustus, where superior quality and exceptional flavour unite. Our top picks are loved by discerning home chefs and those just starting their culinary journey. These are the products customers return for time and again, thanks to phenomenal taste and consistent results.\u003c\/p\u003e","image":{"created_at":"2025-10-28T16:06:28+10:00","alt":"Diamantina Wagyu corned silverside raw beef cut with bay leaves and peppercorns","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/Thankyoucard-PeterAugustus_b0e81796-019d-4fac-89b0-7e86422d5f35.webp?v=1779245663"}},{"id":420096737488,"handle":"best-selling-collection","title":"Best selling products","updated_at":"2026-07-14T21:05:25+10:00","body_html":null,"published_at":"2026-05-27T21:31:50+10:00","sort_order":"best-selling","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":415660736720,"handle":"butchers-bulk-buys","title":"Bulk Buys","updated_at":"2026-07-14T21:05:25+10:00","body_html":"\u003cp\u003eOur Butcher's Bulk Buys brings together premium Australian beef from Stanbroke's Queensland stations across Pure Wagyu, Wagyu, Black Onyx, Angus, grain-fed, and grass-fed, packaged in larger quantities so you can stock the freezer without sacrificing quality. Every cut is butchered fresh and delivered chilled, giving you the same standard you would expect from a single order, just more of it. Built for households, big gatherings, and anyone stocking up on beef that is always worth having on hand.\u003c\/p\u003e","published_at":"2026-04-21T14:54:20+10:00","sort_order":"best-selling","template_suffix":"bulk-box","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"Bulk"}],"published_scope":"global","image":{"created_at":"2025-10-20T12:28:16+10:00","alt":"Box of premium Australian Wagyu striploin steaks from Peter Augustus, vacuum-sealed and marbled.","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/20240516_Food_Wagyu_BL_Striploin_Steak_Box_1_66dcc6cb-a0ad-4e58-ae91-0803a3d2cb55.png?v=1781579228"}},{"id":416342016208,"handle":"grain-fed","title":"Grain-Fed","updated_at":"2026-07-07T21:05:51+10:00","body_html":"\u003cp\u003eOur grain-fed beef is finished on a balanced grain diet for a minimum of 100 days, developing consistent marbling, a mild flavour profile, and the reliable tenderness that makes it an easy choice across any cut. Raised on our Queensland stations and butchered fresh, it is the everyday premium option that delivers a clean, satisfying result without the guesswork. Perfect for meal prepping through the week, feeding a crowd, or stocking the freezer with something dependable.\u003c\/p\u003e","published_at":"2025-08-18T10:28:10+10:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"Grain-Fed"},{"column":"title","relation":"contains","condition":"Grain"},{"column":"tag","relation":"equals","condition":"grain fed"},{"column":"tag","relation":"equals","condition":"grain-fed_SB 1+"},{"column":"tag","relation":"equals","condition":"grain-fed_SB 2+"},{"column":"tag","relation":"equals","condition":"beef_Grain-fed"}],"published_scope":"global","image":{"created_at":"2025-10-20T12:29:19+10:00","alt":"Two raw Diamantina grain-fed eye fillet steaks on parchment with a bowl of salt","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/Grain-Fed.webp?v=1779255572"}},{"id":420096704720,"handle":"new-collection","title":"New products","updated_at":"2026-07-14T21:05:25+10:00","body_html":null,"published_at":"2026-05-27T21:31:50+10:00","sort_order":"created-desc","template_suffix":null,"disjunctive":false,"rules":[{"column":"variant_price","relation":"greater_than","condition":"0"}],"published_scope":"web"},{"id":415717130448,"handle":"roasts-whole-cuts","title":"Roasts \u0026 Whole Cuts","updated_at":"2026-07-14T21:05:25+10:00","body_html":"\u003cp\u003eOur roasts and whole cuts cover beef, lamb, and pork in formats built squarely for the table: silverside, rib fillet, eye fillet, lamb rack, lamb leg, pork porchetta, and pork loin among them. Each cut is carefully prepared to Peter Augustus standard and selected for consistent eating quality, whether you are slow-roasting a whole leg for a long Sunday table or carving a whole fillet for a truly special occasion.\u003c\/p\u003e","published_at":"2026-02-23T14:19:32+10:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"Roasts \u0026 Whole Cuts"}],"published_scope":"global","image":{"created_at":"2025-10-20T12:28:37+10:00","alt":"French trimmed lamb rack on a plate beside a bowl of gourmet salt from Peter Augustus Craft Butcher","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/Lamb_f7fc766b-2e09-4faf-98b8-5049efa587cc.webp?v=1779409565"}},{"id":419257417936,"handle":"sale","title":"Sale","updated_at":"2026-07-14T21:05:25+10:00","body_html":"\u003cp\u003eShop our SALE collection and enjoy exclusive savings on premium meats, BBQ favourites, family essentials, and specialty cuts. 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It performs exceptionally well on the grill or pan, developing a caramelised crust while staying juicy and tender inside. 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Carefully curated for quality and flavour, this range features seasonal favourites, chef-inspired products, and exclusive cuts you won’t always find in everyday selections.\u003c\/p\u003e\n\u003cp data-start=\"329\" data-end=\"656\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePerfect for entertaining, gifting, or creating standout meals at home, these specialty items are chosen for their exceptional taste, versatility, and craftsmanship. Whether you’re looking to try something new or add a gourmet touch to your menu, this collection delivers distinctive quality and memorable flavour in every bite.\u003c\/p\u003e","published_at":"2026-03-27T14:16:03+10:00","sort_order":"best-selling","template_suffix":"","disjunctive":true,"rules":[{"column":"tag","relation":"equals","condition":"Burgers"},{"column":"tag","relation":"equals","condition":"Sausages"},{"column":"tag","relation":"equals","condition":"angus_Kebab"},{"column":"tag","relation":"equals","condition":"Tallow"},{"column":"tag","relation":"equals","condition":"condiments_Tallow"},{"column":"tag","relation":"equals","condition":"Kebab"},{"column":"tag","relation":"equals","condition":"Roast"},{"column":"tag","relation":"equals","condition":"Roasts"},{"column":"tag","relation":"equals","condition":"Roasts \u0026 Whole Cuts"},{"column":"tag","relation":"equals","condition":"lamb Leg_Leg Roast"},{"column":"tag","relation":"equals","condition":"BBQ"}],"published_scope":"global","image":{"created_at":"2026-04-21T16:37:21+10:00","alt":"Packaged Angus beef burger from Diamantina on a marble surface","width":2016,"height":1512,"src":"\/\/www.peteraugustus.com.au\/cdn\/shop\/collections\/DiamantinaAngusBurger_1.webp?v=1779335541"}}]
20kg Bulk Box - Grain-Fed Sirloin Whole
is backordered and will ship as soon as it is back in stock.
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 applies once your account is approved. Prices exclude GST and delivery.
Buy Diamantina 20kg Bulk Box - Grain-Fed Sirloin
Consistent Bulk Supply with Enhanced Flavour and Yield
Diamantina's 20kg Bulk Box - Grain-Fed Sirloin Whole, sourced from Australian grain-fed cattle, offers a marbling score of SB 3–5 or SB 6–10, ensuring consistent quality with enhanced flavour and juiciness. The grain-feeding program enriches the sirloin's taste and tenderness, delivering a satisfying eating experience. Our sirloin's boneless form is ideal for various cooking methods, including pan-searing, grilling, or oven-roasting. Priced at $980, this whole grain-fed sirloin guarantees a strong yield, making it a valuable addition to any culinary repertoire.
Buyers choose our bulk grain-fed sirloin for its superior texture and flavour profile, perfect for chefs, restaurant owners, or home cooks seeking premium beef. This sirloin is ideal for those who value high-grade beef with a robust taste, sourced from trusted Australian cattle. With its excellent cooking performance and quality, opting for our 20kg bulk box is a smart choice for any meat lover. Choose to shop our grain-fed sirloin for an exceptional culinary experience.
20kg bulk box of whole grain-fed sirloin
Premium Australian grain-fed beef
Balanced cut with firm texture and strong flavour
Supplied whole for maximum yield and flexibility
Product Highlights
20kg weight for substantial purchase value.
Australian grain-fed cattle breed for authentic quality.
Origin from Australia ensures trusted sourcing.
Grain-fed feeding program for enhanced flavour.
Boneless form for easy preparation.
Whole cut type offers versatile cooking options.
SB 3–5, SB 6–10 marble score for consistent quality.
Performance & Quality
Grain feeding enhances marbling, resulting in improved tenderness, juiciness, and flavour while maintaining the structure that makes sirloin a versatile and reliable cut.
Enhanced marbling for improved flavour and juiciness
Rich, beef-forward flavour profile
Ideal for steaks, slicing, and value-added products
Consistent quality across commercial applications
Wholesale Advantages
Supplied in a 20kg bulk format, this product is designed for efficiency, offering strong yield, flexibility, and dependable quality for butchers, restaurants, and catering operations.
Strong yield with flexible portioning options
Vacuum sealed for freshness and extended shelf life
Reliable consistency across large volumes
Australian family-owned and operated production
Why This Product
A dependable grain-fed sirloin delivering strong yield, enhanced flavour, and consistent performance for high-volume kitchens and butchery operations.
Excellent value for wholesale purchasing
Versatile across multiple menu applications
Enhanced eating quality from grain feeding
Consistent performance at scale
Who Should Choose This 20kg Bulk Box - Grain-Fed Sirloin Whole?
Our 20kg Bulk Box - Grain-Fed Sirloin Whole suits those seeking consistent quality and strong yield from Australian grain-fed cattle. Offering enhanced flavour and improved juiciness, this sirloin is ideal for various purposes.
Restaurants seeking bulk quality beef for menu offerings
Caterers needing reliable meat for large events
Families purchasing in bulk to save on quality sirloin
Butchers looking to offer premium cuts to their customers
Home chefs preparing for special occasions or gatherings
Best Cooking Methods for Sirloin
Grain-fed sirloin from our 20kg Bulk Box offers unique cooking versatility due to its enhanced flavour and improved juiciness. The cut's boneless nature aids in even fat rendering, while its marble score ensures succulent results. Resting after cooking allows the sirloin to reach its preferred doneness, offering a consistent quality experience.
Pan Sear: Use medium-high heat. Sear grain-fed sirloin for 3-4 minutes per side for a flavourful crust and juicy interior.
Grill: Preheat to high. Cook sirloin for 4-5 minutes per side. Allow resting for 5 minutes to let juices redistribute.
BBQ: Maintain medium heat. Grill sirloin for 6-7 minutes each side, achieving a balance of smoky aroma and tender texture.
Oven: Preheat to 200°C (390°F). Roast sirloin for 20-25 minutes. Rest for 10 minutes to lock in moisture and tenderness.
Delivery & Storage
Our 20kg bulk grain-fed sirloin is expertly packed for secure and fresh transit.
Vacuum sealed for optimal freshness
Insulated thermal packaging with ice packs
Refrigerated transport ensures cool delivery
Refrigerate or freeze upon arrival
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.
