If the process has a normal distribution, 99.7% of the population is captured by the curve at three standard deviations from the mean. Stated another way, there is only a 1-99.7%, or 0.3% chance of finding a value beyond 3 standard deviations.
Relish is one of them. The most traditional corn relish traces its origins to the South, particularly Louisiana. This sort of relish is often little more than fresh corn kernels, hot peppers, and spices that are boiled briefly in vinegar. The vinegar acts as a preserving agent and also pickles the corn.
Cornstarch is starch that is ground from the white endosperm at the heart of a kernel of corn. It's used as a thickening agent in cooking, a health-conscious alternative to talc, and the main ingredient in a biodegradable plastic. Powdered sugar also includes a small amount so that it does not clump.