How long do you cook 5.7 kg roast at 250F?

I can't tell you exactly how long to cook a 5.7 kg roast at 250F without knowing more about it. Here's why:

* Type of Meat: Is it beef, pork, lamb, or something else? Each meat type has different cooking times and temperatures.

* Cut of Meat: Even within the same type of meat, different cuts (e.g., tenderloin vs. chuck roast) have different cooking times due to their fat content and muscle structure.

* Desired Doneness: How well done do you want the meat? Rare, medium-rare, medium, well-done all have different internal temperatures and cooking times.

* Cooking Method: Are you cooking in a slow cooker, oven, or using another method? This affects the overall cooking time.

To get a more accurate cooking time, I recommend:

1. Consult a reliable recipe: Search online or in a cookbook for a recipe specifically for the type and cut of meat you have.

2. Use a meat thermometer: The best way to ensure your roast is cooked to your desired doneness is to use a meat thermometer. You can find the recommended internal temperatures for different levels of doneness online.

Remember: It's always better to err on the side of undercooking than overcooking. You can always cook the meat a bit longer if needed, but it's harder to fix overcooked meat.