What scale is used to measure the heat value of capsicum?

The Scoville Heat Units (SHU) scale is specifically designed to measure the heat or pungency of capsicum, which includes various types of peppers. This scale quantifies the concentration of capsaicin, the chemical compound responsible for the spicy heat in peppers. The measurement reflects how much a solution containing the pepper needs to be diluted in sugar water before the heat is no longer detectable by a panel of testers. This means that the higher the SHU value, the hotter the pepper.

In contrast, the Fahrenheit and Celsius scales are used to measure temperature and do not pertain to the measurement of heat values in food. The decibel level is a unit of sound intensity and has no relation to the heat of peppers. Therefore, the Scoville Heat Units scale is the appropriate choice for quantifying the heat levels of capsicum.