A utensil that has been used for cooking within the past 24 hours for either milk or meat
Cooking using heat, such as frying, baking, boiling
Food that is cooked by a non-Jew (see Gevinas Akum)
The traditional bread loaves used during Shabbos and holiday meals
Milking a kosher animal under the supervision of a Jew
Leavened grain that is forbidden on Passover
The day before
The day before the Sabbath
Meat and poultry products and anything used in their preparation, such as dishes and utensils
Matzo that came in contact with water after it was fully baked
Cheese that is produced by a non-Jew
Kosher animals that do not have certain internal blemishes