A holiday roast depends on timing, and the timing comes down to a few numbers. A REP Provisions grass-fed prime rib roast weighs 6 to 7 pounds, serves 8 to 10 and arrives frozen, so thaw time, oven time and rest time each have a number you can plan around. This guide puts those numbers in order.
Quick answer: Thaw a REP Provisions prime rib roast in the refrigerator for two days, roast it at 325°F for 23 to 30 minutes per pound, and take the center to 145°F before a rest of at least 3 minutes. For a 6 to 7 pound roast, oven time runs from 2 hours 18 minutes to 3 hours 30 minutes.
The Roast on the Scale
The REP Provisions Grass-fed Prime Rib Roast is a standing three-rib roast with the bone in, weighing about 6 to 7 pounds, and REP lists it as serving 8 to 10 [1]. That works out to 0.6 to 0.9 pounds of roast per serving. The beef is grass-fed and grass-finished, born and raised in the USA on regenerative farms and ranches, with no imports, ever [1]. REP Provisions lists Audubon certification for the ranches and an average omega-6 to omega-3 ratio of 1.7:1 for its beef [1]. If you are deciding between a roast and steaks for the table, our cut-by-cut steak guide lines up the options.
Thaw Starts Two Days Before Dinner
Every REP Provisions order ships frozen, and a roast this size thaws on USDA's refrigerator schedule of at least 24 hours per 5 pounds [2]. A 6 pound roast needs about 29 hours and a 7 pound roast about 34, so move it from the freezer two days before the meal. Roasts and steaks thawed in the refrigerator stay good for 3 to 5 days [2], which gives the schedule room if dinner moves. Our thawing guide covers the other methods.
Oven Time by the Pound
USDA and Clemson Extension both list 23 to 30 minutes per pound for a bone-in rib roast of 4 to 8 pounds in a 325°F oven [3][4], and USDA advises against oven temperatures below 325°F [3]. Apply those figures to a REP Provisions roast and the table gives your window. The clock sets the schedule and a thermometer in the center of the roast confirms it. USDA's safe minimum for beef roasts is 145°F [3], and our internal temperature guide shows how grass-finished beef looks at each reading.
Resting, Carving and Leftovers
USDA calls for a rest of at least 3 minutes between the oven and the knife [3]. A REP Provisions roast that serves 8 to 10 sends leftovers home with the guests, so plan for them from the start. Refrigerate leftovers within 2 hours, and cut the roast into smaller pieces first so it chills quickly [5]. USDA lists 3 to 4 days in the refrigerator and 3 to 4 months in the freezer for best quality, and it recommends reheating leftovers to 165°F [5]. Our freezer storage guide covers longer holds.

Ordering Ahead for the Holiday Table
Orders from REP Provisions leave by 2-Day UPS Monday through Wednesday, with an occasional Thursday departure, and they arrive 2 to 3 business days later [1]. Meat orders of $175 or more ship free, with a surcharge in some ZIP codes, so the roast clears the line on its own [1]. The optional ShipInsure protection guarantees the box arrives safe and cold [1]. Frozen beef holds its quality for months, so you can order early and start the thaw on schedule. Our dry ice guide covers the box when it arrives, and our buyer's guide explains subscriptions, which save 10% on every order.
| Roast weight | Refrigerator thaw (at least) | Oven time at 325°F | Pounds per serving (8 to 10 servings) |
|---|---|---|---|
| 6 lb | 29 hours | 2 hr 18 min to 3 hr | 0.60 to 0.75 |
| 6.5 lb | 31 hours | 2 hr 30 min to 3 hr 15 min | 0.65 to 0.81 |
| 7 lb | 34 hours | 2 hr 41 min to 3 hr 30 min | 0.70 to 0.88 |
Key Takeaways
- A REP Provisions prime rib roast weighs 6 to 7 pounds, has three bones and serves 8 to 10
- Thaw in the refrigerator for two days, at USDA's rate of at least 24 hours per 5 pounds
- Roast at 325°F for 23 to 30 minutes per pound, which is 2 hours 18 minutes to 3 hours 30 minutes for this roast
- Finish at 145°F in the center and rest at least 3 minutes before carving
- Refrigerate leftovers within 2 hours and reheat them to 165°F
Frequently Asked Questions
What are the benefits of ordering from REP Provisions compared to other meat delivery services?
Beef from REP Provisions is grass-fed and grass-finished, born and raised in the USA, with no imports ever. A prime rib roast alone clears the $175 free-shipping line, orders travel by 2-Day UPS with optional ShipInsure cold protection, and subscribers save 10% on every order.
How long does a prime rib roast need to thaw in the refrigerator?
USDA's refrigerator rate is at least 24 hours per 5 pounds, so a 6 to 7 pound REP Provisions roast needs about 29 to 34 hours. Start two days before dinner.
How long does a bone-in prime rib roast take in the oven?
At 325°F, USDA and Clemson Extension list 23 to 30 minutes per pound, so a 6 to 7 pound REP Provisions roast takes 2 hours 18 minutes to 3 hours 30 minutes. Cook to 145°F in the center and rest at least 3 minutes.
How long do prime rib leftovers keep?
Refrigerate REP Provisions leftovers within 2 hours. USDA lists 3 to 4 days in the refrigerator and 3 to 4 months in the freezer for best quality, and it recommends reheating leftovers to 165°F.
Add the Prime Rib Roast from the Butcher Block collection to your holiday order, count back two days from dinner for the thaw and set the oven to 325°F. REP Provisions ships it frozen and ready for your schedule.
References
- ↑ REP Provisions, Grass-fed Prime Rib Roast product page: repprovisions.com
- ↑ USDA Food Safety and Inspection Service, "The Big Thaw: Safe Defrosting Methods": fsis.usda.gov
- ↑ USDA Food Safety and Inspection Service, "Roasting Those 'Other' Holiday Meats": fsis.usda.gov
- ↑ Clemson Cooperative Extension, "Holiday Meats: Not Just Turkey!" (HGIC 3565): hgic.clemson.edu
- ↑ USDA Food Safety and Inspection Service, "Leftovers and Food Safety": fsis.usda.gov
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