What is the safest way to check meat is cooked to the correct temperature?

Use a calibrated digital probe thermometer. Insert the probe into the thickest part of the meat, at least 2-3cm from any bone, and away from fat deposits. Wait until the reading stabilises (3-5 seconds for a fast-read thermometer). For whole poultry, check both the thickest thigh (should reach 75C) and the breast (should also reach 75C). Never rely solely on colour -- pink pork can be safe at 70C, and grey chicken can still be unsafe if the temperature was not reached consistently throughout.

What does carryover cooking mean and why does it matter?

Carryover cooking refers to the continued rise in internal temperature that occurs after meat is removed from the oven. The outer layers of the meat are hotter than the centre and continue to transfer heat inward even after the heat source is removed. A large beef roast can rise 5-8C in the centre during a 20-minute rest. This means you should remove the meat from the oven when the thermometer reads 5-8C below your target temperature, allowing the carryover to reach the final target during resting.

Can I cook meat from frozen without thawing?

Yes, but cooking time increases by 50% for frozen meat. Safety standards require that frozen meat reaches the same internal temperature as fresh meat -- the additional time is needed for the heat to penetrate the frozen centre. Cooking from frozen is not recommended for large roasts (over 2kg) because the surface overcooks before the centre is safe. For smaller cuts, cooking from frozen in a moderate oven (160-180C) is practical.

Meat Cooking Time Calculator — Free Hospitality Calculator

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A 2.4 kg leg of lamb goes into the oven at 11am for a 1pm service. Before setting the timer, the kitchen needs to confirm the cooking time for medium doneness in a fan-forced oven and the resting time so service timing is set correctly.

Meat Cooking Time Calculator

Cooking

Weight (kg)

Imperial mode auto-converts lb→kg

Meat type

Doneness

Cooking method

Target internal temperatures (°C):
Beef rare: 52–55 · Medium-rare: 57–62 · Medium: 65–70 · Well: 75+
Lamb: similar to beef · Pork: 68–75 (no longer needs to be well-done)
Chicken & turkey: minimum 75°C at thickest part (food safety)
Always rest meat after cooking — juices redistribute, temperature rises ~5°C

Reference: Food Standards Australia — Safe Internal Temperatures · Taste.com.au — Meat Temperature Guide

ℹ️ Results are estimates for planning purposes. Verify with current standards and a qualified professional.

1 What this calculator does

Calculates cooking time for beef, lamb, pork, chicken, turkey and veal roasts from the weight, desired doneness and cooking method (conventional, fan-forced or slow roast). Provides target internal temperature and recommended resting time. Always recommends a meat thermometer as the definitive check.

2 Formula & professional reasoning

Cooking time = Minutes per kg x Weight (kg) x Method factor
Method factors: Conventional (180C) = 1.0 | Fan-forced (160C) = 0.85 | Slow roast (130C) = 2.5
Meat type examples (min/kg at conventional, medium-rare):
  Beef roast: 25 min/kg | Lamb leg: 25 min/kg | Pork leg: 35 min/kg | Chicken: 40 min/kg
Target internal temps (medium-rare): Beef 60C | Lamb 60C | Veal 60C
Pork minimum: 70C (medium) | Chicken minimum: 75C throughout

Cooking time is proportional to weight because heat must penetrate to the centre of the meat. The method factor accounts for efficiency differences between cooking methods -- fan-forced circulates heat more efficiently and cooks 15% faster, while slow roasting at 130C takes 2.5x longer but produces more even doneness and tender collagen breakdown. Internal temperature is the only reliable indicator of doneness -- times are guides, not guarantees, because ovens vary, starting meat temperature varies and bone density varies.

3 Worked examples

⚠️ Illustrative example only — not clinical or professional instruction.

Basic

2.4 kg lamb leg, medium doneness, fan-forced

Given: Meat: lamb leg | Weight: 2.4 kg | Doneness: medium | Method: fan-forced (160C)

Working:

Base min/kg for lamb medium at conventional: 30 min/kg | Fan-forced factor: 0.85 | Total minutes: 30 x 2.4 x 0.85 = 61.2 min | Rest: 15 min | Total: 76 min

Answer: Cooking time: 61 min (approx 1h) at 160C fan-forced | Rest: 15 min | Target internal: 65C | Total from oven to carve: 76 min

💡 Put the 2.4kg lamb in at 11:44am to serve at 1pm (61 min cooking + 15 min rest = 76 min total). Check internal temperature at 55 min -- do not rely solely on the clock.

Standard

1.8 kg whole chicken, well-done, conventional

Given: Meat: whole chicken | Weight: 1.8 kg | Doneness: well-done (only option for chicken) | Method: conventional (180C)

Working: Chicken: 40 min/kg | Conventional factor: 1.0 | Total: 40 x 1.8 x 1.0 = 72 min | Rest: 10 min | Target: 75C throughout

Answer: Cooking time: 72 min at 180C | Rest: 10 min | Target: 75C in thickest part (thigh, not touching bone) | Total: 82 min

💡 Chicken must reach 75C throughout to be safe -- there is no 'rare' or 'medium' for chicken or poultry. Always probe the thickest part of the thigh, not the breast, and ensure the probe is not touching bone.

Advanced

Slow-roasted beef brisket for 6h service

Given: Meat: beef roast | Weight: 3.5 kg | Doneness: well-done (brisket requires full collagen breakdown) | Method: slow roast (130C)

Working:

Beef well-done: 40 min/kg | Slow roast factor: 2.5 | Total: 40 x 3.5 x 2.5 = 350 min = 5h 50min | Rest: 30 min | Total: 6h 20min

Answer: Slow roast 3.5 kg brisket: approximately 5h 50min at 130C | Rest 30 min | Target internal: 85-90C for collagen breakdown

💡 Brisket and other tough cuts require high internal temperature (85-95C) for full collagen breakdown to gelatin. This is different from medium-rare for tender cuts. Probe at 5h and continue until 85C minimum.

4 Sanity check

Target internal temperatures by meat and doneness

Australian Food Safety Standards minimum temperatures

Poultry must reach 75C | Pork must reach 70C | Minced meat and sausages: 75C | Whole cuts of beef and lamb: no minimum (acceptable to serve rare)

FSANZ sets these minimums for commercial food service.

Resting time is not optional

Resting allows juices to redistribute and temperature to equalise | Skipping rest = juices run out when carved

Beef: 15-20 min | Lamb: 15 min | Pork: 15 min | Chicken: 10 min | Turkey: 30 min

Always use a meat thermometer for the definitive check

Cooking times are estimates -- ovens vary, starting temperatures vary, bone density varies

A probe thermometer is the only reliable way to confirm doneness.

5 Common errors

Error	Cause	Consequence	Fix
Not resting the meat before carving	Time pressure at service or assuming the meat is ready the moment it comes out of the oven	Juices run out when the meat is carved -- meat appears dry even if properly cooked	Rest time is a non-negotiable part of the total cooking time. Build it into the service schedule. Cover the meat loosely with foil during rest -- the internal temperature continues to rise by 3-5C (carryover cooking) during the rest period.
Probing the meat in the wrong location	Placing the thermometer probe near bone or in fat rather than in the thickest muscle	Temperature reading too high (near bone which heats faster) or too low (fat insulates) -- incorrect assessment of doneness	Insert the thermometer probe into the thickest part of the meat, at least 2-3cm from any bone. For whole poultry, probe the thickest part of the thigh (where it meets the body) -- this is the last part to reach safe temperature.
Not reducing temperature for fan-forced ovens	Using conventional oven temperatures in a fan-forced oven	Meat over-browned on the outside before reaching target internal temperature, or overcooked throughout	Fan-forced ovens are 15-20% more efficient. Reduce the temperature by 20C (or reduce time by 15%) compared to conventional recipes. This calculator applies the 0.85 factor for fan-forced.
Cooking pork to well-done when medium is safe and much better quality	Old food safety advice that pork must be cooked to well-done	Dry, tough pork when medium (70C internal) is perfectly safe and significantly more tender and juicy	Modern Australian and US food safety standards confirm that whole cuts of pork are safe at 70C (medium). The old advice to cook pork to 80-85C (well-done) was based on outdated trichinosis risk that no longer applies to commercially produced pork. Chefs now serve high-quality pork at 65-70C for far better results.

6 Reference & regulatory links

🇦🇺 Australia

🇺🇸 United States

7 Professional workflow

Common tools used alongside this one:

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Oven Temperature Converter

Oven Temperature Converter confirms the correct fan-forced setting when adapting conventional oven recipes

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Catering Quantity Calculator

Catering Quantity Calculator establishes how much meat to buy in raw weight before this cooking time is calculated

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Food Cost Calculator

Food Cost Calculator applies to the meat quantity purchased and the yield after cooking to establish the per-portion cost

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Input	Result
Beef roast medium-rare, conventional	25 min/kg
Lamb leg medium, fan-forced	25 x 0.85 = 21 min/kg
Whole chicken, conventional	40 min/kg + rest 10 min
Pork leg medium	35 min/kg + rest 15 min