Do you need a longer cooking time for 30 chicken thighs than say 10?

Yes, you generally need a longer cooking time for 30 chicken thighs than 10. Here's why:

* Crowding: More chicken thighs in the same pan will create crowding, leading to steam buildup and potentially uneven cooking. This can result in longer cooking times to ensure all the thighs are cooked through.

* Heat Distribution: A larger quantity of chicken will absorb more heat from the pan or oven, potentially slowing down the cooking process.

Here are some tips for cooking a large quantity of chicken thighs:

* Use Multiple Pans: Divide the chicken thighs into smaller batches and cook them in separate pans to ensure even cooking.

* Increase Cooking Time: Expect to increase the cooking time slightly compared to a smaller batch. Monitor the internal temperature of the thickest thigh to ensure it reaches 165°F (74°C).

* Don't Overcrowd: Don't overcrowd the pan or baking sheet. Ensure there's enough space between each piece of chicken to allow for proper heat circulation and browning.

* Use Oven or Slow Cooker: An oven or slow cooker can be helpful for cooking a large quantity of chicken thighs. The even heat distribution and longer cooking times ensure even cooking.

Remember to adjust the cooking time based on your chosen cooking method, desired level of doneness, and the size of the chicken thighs.