Pork Joint Calculator

The standard UK method is a 30-minute initial blast at 220°C (200°C fan, Gas 7) for crackling, then 30 minutes per 500g at 180°C (160°C fan, Gas 4) for the remaining time. So a 1.5kg joint takes about 120 minutes (2 hours) and a 2kg joint about 2 hours 30 minutes. Pork must always be cooked all the way through: the FSA target is the centre reaching 70°C held for 2 minutes (or 75°C for 30 seconds). For a single instant probe reading at home, pull the joint when the thickest part reads 75°C. Unlike whole beef and lamb joints, pink pork is not safe to eat.

For perfect crackling: score the skin deeply with a sharp knife at 1cm intervals (ask your butcher to do this). Pat the skin completely dry, then rub with oil and plenty of fine salt. Start the oven at 220°C for 25-30 minutes until the skin puffs and crackles, then reduce to 180°C for the remaining time. Do not baste the skin or cover with foil — moisture is the enemy of crackling.

Loin (bone-in or boneless) is the classic roasting cut with excellent crackling potential. Shoulder is fattier and ideal for slow roasting — it shreds beautifully when cooked low and slow. Belly produces the most crackling but is very fatty. Leg is leaner and serves a crowd but can dry out if overcooked. For a smaller household, a mini loin roast (500g-1kg) is perfect.

For home cooking, no — always cook pork all the way through. The FSA says the centre of the joint must reach 70°C and hold it for 2 minutes (equivalent to 75°C for 30 seconds, or 80°C for 6 seconds). Because a home probe gives a single instant reading rather than a timed hold, the safe pull temperature is 75°C in the thickest part — wait until the probe reads 75°C before resting. While some chefs serve premium pork (like Iberico or heritage breeds) slightly pink, that relies on professional temperature control and is not a home practice.

Classic accompaniments include apple sauce, sage and onion stuffing, roast potatoes, and seasonal vegetables. Gravy made from the pan juices is essential. Mustard (English or wholegrain) is traditional. For a more modern twist, try roast pork with fennel, or Asian-inspired flavours like five-spice and honey.