It was created specifically to compete with Ralston Purina's Chex family of cereals, which had about $125 million in annual sales and no significant competition.

[3] Kellogg's has released limited information about manufacturing process that results in Crispix's unique puffed hexagon shape.

According to Kellogg's, corn grits and rice are cooked separately, dried, and then rolled with a grooved roller creating a waffled appearance.

The sheets of corn and rice are laid on top of each other, cut into hexagons and toasted in an oven that causes them to puff.

Cinnamon Crunch Crispix joined a number of cereals discontinued by Kellogg's after disappointing sales.