Roasting and glazing apparatus employing electronic techniques for detecting boiling of water during steam cleaning operation

A roasting and glazing apparatus configured to operate a steam cleaning function at any altitude of a current location of the roasting and glazing apparatus, comprising:

• a roaster housing;
• a roaster bowl disposed within the roaster housing, the roaster bowl having an outwardly and upwardly extending pouring lip;
• a cover removably mounted on a top of the roaster bowl, the bowl and cover including a vent;
• a heater disposed within the roaster housing and adapted to controllably heat the master bowl and, directly or indirectly, contents within the roaster bowl;
• a temperature sensor for sensing a temperature of the roaster bowl;
• and
• a processor and a memory storing instructions which when executed by the processor cause the roasting and glazing apparatus to:
• determine whether the water within the roaster bowl has reached a boiling point using the sensed temperature of the roaster bowl as provided by the temperature sensor by:
• (a) detecting a temperature of the roaster bowl, using an output of the temperature sensor, and obtaining a first temperature of the roaster bowl;
• (b) continuously monitoring the temperature of the roaster bowl over a detection time threshold, using the output of the temperature sensor, and obtaining a plurality of second temperatures of the roaster bowl;
• (c) ascertaining a plurality of variations of the temperature of the roaster bowl over the detection time threshold by calculating a difference between the first temperature and each of the second temperatures of the roaster bowl;
• and
• (c) determining that the temperature of the water within the roaster bowl has reached the boiling point based on each of the ascertained variations being less than a predetermined temperature variation threshold,
• wherein the boiling point being a function of an altitude of a current location of the roasting and glazing apparatus and the memory further stores instructions which cause the roasting and glazing apparatus to:
• count an amount of time of boiling upon determining that the water within the roaster bowl has reached the boiling point at the altitude of the current location of the roaster bowl;
• and
• control the heater to terminate heating of the roaster bowl when the counted amount of time of boiling reaches a predetermined amount of time.