1 Peer-reviewed (refereed or scholarly) journals-Articles are written by experts and are reviewed by several other experts in the field before the article is published in the journal in order to insure the article's quality.
One key component to an efficient walk-in cooler is its insulation. A standard walk-in cooler will have between 2 and 4 inches of Styrofoam insulation within its walls and a rubber sealing gasket around its door to help ensure that it is both airtight and well-insulated against the temperature of the air outside.
Clean container or bucket that can hold a gallon or two of water. Unscented household bleach (just a tiny bit!) A small cork or plug if you have a hot & cold cooler This is a CRITICAL piece that you need to clean your hot/cold cooler. For a room temperature and cold cooler, a cork or plug is not needed.