Abstract
Beer foam is a major source of waste in most bars today. An average bar will lose close to $10,000 a year due to beer waste. Automated Beverage Dispensers attempt to eliminate this waste, however most fail due to the inability to prevent excess amounts of beer foam during pouring of a beer. The root cause of beer foam is best described by Henry’s Law which describes the relationship between the solubility of a gas in a liquid due to temperature and pressure. Automated Beverage Dispensers currently regulate pressure however they do not control the beverage temperature; this must be regulated in order to eliminate beer foam. The beverage temperature can be regulated by an Automated Beverage Dispenser through the use of a custom computer controlled heat exchanging system. This heat exchanging system combines hardware, software, and mechanical components in a way that is energy efficient, environmentally safe, and cost effective. In the context of an Automated Beverage Dispenser this integrated solution holds temperature and pressure constant thus eliminating beer waste due to foam.