MSG, or monosodium glutamate, is a common and widespread additive in food used mainly for flavor enhancement, but also for preservation. MSG has been used for well over a century as a food additive, but in the last couple of decades anecdotal claims of illness have been linked to MSG consumption.SG is the salt form of glutamic acid, which is a naturally occurring amino acid. Seaweeds and many other plants and vegetables contain glutamic acid.
From Wikipedia, the free encyclopedia. Auto-defrost, automatic defrost or self-defrosting is a technique which regularly defrosts the evaporator in a refrigerator or freezer. Appliances using this technique are often called frost free, frostless or no-frost.
The defrost thermostat controls the defrosting cycle of modern refrigerators. The defrost thermostat, a bi-metallic switch, controls the temperature rise in the freezer compartment during the defrost cycle.heck to be sure the thermostat is opening at the correct temperature by placing it in water and slowly heating the water. Defrost thermostats are designed to open between 40 degrees and 90 degrees Fahrenheit.