Abstract: A method of ammonia production is provided that includes holding a nitrate source in an electrolyte solution, using a reaction chamber, reducing the nitrate into ammonia or ammonium, whereby producing water or hydroxide ions, using a cathode in the reaction chamber, oxidizing the water or hydroxide ions into protons and oxygen or water and oxygen, using an anode in the reaction chamber, and separating the ammonia and the ammonium from the reaction chamber, using an ammonia and ammonium output.

Abstract: Systems and methods are provided for creating printed tags for use in connection with a heated food item placed into a hot holding unit. System components may include a user interface, a printer, and a controller. The controller is programmed to instruct the user interface to display a prompt for an operator to input information identifying one or more characteristics of a food item positioned within or to be placed into a hot holding unit. The controller receives the information from the user interface and instructs the printer to generate a tag identifying the food item and the time at which the food item is to be removed from the hot holding unit and discarded. The tag may include a display area to display the printed information and a support area with a slit that allows the tag to be supported by a rack of the hot holding unit.