A portable instrument for providing an on-site ice cream, comprise of all
natural ingredients, in front of a customer is provided. The instrument
according to the current application is comprised of; 1) a compressor
equipped with a condenser having heat removal capacity of 12,000 BTU/hr,
2) an exit tube, 3) a condenser tube, 4) an expansion valve, 5) an outlet
copper tube, 6) a coiled coolant pipe, 7) a stainless steel shallow bowl
shape plate welded on the coolant pipes, 8) an inlet copper tube, 9) a
separator, 10) a by pass line that connects the exit tube and the outlet
copper tube, 11) a solenoid valve, and 12) a foot stepper to control
on/off of the solenoid valve. Slurry of a mixture of fruits, milk, cream
powder and honey syrup, formed from an electric mixer is dumped on the
stainless steel plate, which is maintained at the very low temperature
between -31 C to -35 C.