This causes the steam to build up pressure until the kernel explodes. The wild ancestor of corn is believed to have been a type of popcorn. Today, the United States is responsible for producing almost all of the world's popcorn. Dent corn Dent corn is softer than flint corn. It has a dent in each kernel.
Most kernels are yellow or white.
It is commonly grown in North America and often used as livestock feed. It is also used to make many processed foods. Flour corn Flour corn has a very soft starchy kernel. It is easily ground and is used in baked goods. Flour and Flint corn were the chief types of corn raised by Native Americans.