Cheese curd
Cheese curds in cuisine, or cooking, are the solid parts of soured milk either eaten alone or used in various regional dishes, mostly in eastern Canada and the northeastern and midwestern United States. They are sometimes referred to as "squeaky cheese".
Production
Cheese curds start off with fresh milk. The milk is pasteurized, much like in the process of creating cheese. During this process, rennet is added to clot the milk. After the milk has been pasteurized, the result is a mixture of whey and the early stages of the curd. This mixture is then cooked. Next, it is pressed to release the whey from the curd, thus creating the final product of cheese curd.
Characteristics
Their flavor is mild, but can differ in taste depending on the process in which it was made. It has about the same firmness as cheese, but with a springy or rubbery texture. Fresh curds squeak against the teeth when bitten into, a defining characteristic due to air trapped inside the porous material. This "squeak" has been described by the New York Times as sounding like "balloons trying to neck". After 12 hours, even under refrigeration, cheese curds lose much of their "fresh" characteristic, particularly the "squeak". Keeping them at room temperature can preserve the squeakiness.