A weird white foam comes out of my chicken while cooking — what is that stuff?

Cooking chicken in a crowded pan can exacerbate the appearance of white foam. When the pan is overcrowded, the chicken pieces release moisture that doesn’t evaporate quickly, allowing the foam to accumulate. Low heat settings extend the cooking time, giving more opportunity for proteins to dissolve and form foam. To minimize foam, avoid overcrowding the pan and use higher heat to encourage evaporation and browning.

To reduce the formation of white foam, pat the chicken dry before cooking to remove surface moisture. Using higher heat initially can help sear the proteins and reduce their release into the cooking liquid. Additionally, ensuring the pan is hot before adding the chicken can prevent excess moisture accumulation. Some chefs also recommend using a gentle simmer rather than a vigorous boil to limit foam formation when poaching chicken.