Canker sore: A canker sore, also known as an aphthous ulcer, is a single pale or yellow ulcer with a red outer ring or a cluster of such ulcers in the mouth, usually on the cheeks, tongue, or inside the lip.
The Board will allow a maximum temperature of 120 degrees Fahrenheit. Hand sinks in commercial kitchens are only used by employees. These employees are typically washing and rinsing pots and pans in pot sinks which could have 140 degree water. Those pot sinks, in some kitchens are located right next to the hand sinks.
Although a commercial kitchen's water heater may be able to reach the required temperature of 110 degrees, it must have sufficient capacity to maintain this temperature during the facility's daily operations. Hot water tanks must be large enough to hold enough hot water for typical dishwashing and handwashing volume.