Water blanching is performed in hot water at temperatures ranging typically from 70C to 100C. However, low temperature long-time (LTLT) blanching and combinations of LTLT with high-temperature short-time (HTST) blanching have also been studied.[3–5] Water blanching usually results in a more uniform treatment, allowing processing at lower temperatures. There are water blanchers that use a screw or a chain conveyor to transport the product inside the tank, where hot water is added. Others use a rotary drum to immerse and convey the product. Water is usually heated indirectly with steam in a heat exchanger; therefore steam quality does not need to be ‘‘food-grade.’’ Water blanching requires longer processing times, results in increased leaching of minerals and nutrients such as vitamins, and produces effluents with large biological oxygen demand (BOD).