How long a 2.175kg roast pork would take to cook?

I can't give you an exact cooking time for your roast pork. Here's why:

* Oven Temperature: The cooking time is highly dependent on the temperature of your oven. A higher temperature will cook the roast faster.

* Size and Shape: A 2.175 kg roast could be a long, thin roast or a thick, round one. This affects how the heat penetrates.

* Bone-in or Boneless: A bone-in roast takes longer to cook than a boneless one.

* Desired Doneness: Do you prefer your pork medium-rare, medium, or well-done? This influences the cooking time.

Here's how to determine the cooking time:

1. Check a reliable recipe: Look for a recipe specifically for a roast pork of roughly the same size and bone structure as yours. Recipes usually provide an estimated cooking time.

2. Use a meat thermometer: This is the most reliable way to ensure your pork is cooked safely and to your liking. Pork is safe to eat when it reaches an internal temperature of 145°F (63°C).

General guidelines:

* Roasting Time: Plan on roughly 20-30 minutes per pound for a roast pork. This is a starting point, and you'll likely need to adjust based on the factors mentioned above.

* Resting Time: Allow the roast to rest for 10-15 minutes after cooking before carving. This allows the juices to redistribute, making for a juicier roast.

Remember, these are just guidelines. Always use a meat thermometer to ensure your roast pork is cooked to the correct temperature for your preference. Enjoy!