A cooling system comprising: a cooling chamber defined by sidewalls , a floor , and a top wall , wherein at least one surface of the cooling chamber defines one or more openings and is configured to hold at least one container; wherein the cooling system further comprises a phase change material disposed in at least one of the sidewalls , the floor , or the top wall of the cooling chamber; and wherein the cooling system further comprises a refrigeration system configured to cool the cooling chamber by forcing cool airflow through the one or more openings , wherein the refrigeration system further comprises a condenser disposed laterally adjacent to the cooling chamber at a vertical wall defining a cool air duct configured to fluidly connect the refrigeration system and the openings , wherein the cool air duct is disposed between the condenser and the cooling chamber , wherein the refrigeration system further comprises a compressor and an evaporator disposed above a plane defined by the floor and positioned such that at least one sidewall is between the evaporator and the cooling chamber , wherein the refrigeration system further comprises a fan and an air intake vent in a top portion of the cooling chamber , the air intake vent being disposed in the at least one sidewall. wherein the cool air duct includes a substantially vertical portion located at least partially adjacent to the cooling chamber and a substantially horizontal portion located at least partially below the surface, wherein the refrigeration system is configured to cool the cooling chamber by forcing cool airflow through the cool air duct and through the one or more openings , and wherein the phase change material is configured to maintain a desired temperature in the cooling chamber when the refrigeration system is not operational. a cooling chamber defined by sidewalls , a floor , and a top wall , wherein at least one surface of the cooling chamber defines one or more openings and is configured to hold at least one container; wherein the cooling system further comprises a phase change material disposed in at least one of the sidewalls , the floor , or the top wall of the cooling chamber; and a refrigeration system configured to cool the cooling chamber by forcing cool airflow through the one or more openings , wherein the refrigeration system further comprises a condenser disposed laterally adjacent to the cooling chamber at a vertical wall defining a cool air duct configured to fluidly connect the refrigeration system and the openings , wherein the cool air duct is disposed between the condenser and the cooling chamber , wherein the refrigeration system further comprises a compressor and an evaporator disposed above a plane defined by the floor and positioned such that at least one sidewall is between the evaporator and the cooling chamber , wherein the refrigeration system further comprises a fan and an air intake vent in a top portion of the cooling chamber , the air intake vent being disposed in the at least one sidewall. wherein the cool air duct includes a substantially vertical portion located at least partially adjacent to the cooling chamber and a substantially horizontal portion located at least partially below the surface, wherein the refrigeration system is configured to cool the cooling chamber by forcing cool airflow through the cool air duct and through the one or more openings , and wherein the phase change material is configured to maintain a desired temperature in the cooling chamber when the refrigeration system is not operational. <EOS>