Per process is approximately 35 sen and if the machine is switched on for 24 hours, it will cost approximately MYR 4.00
Any grades will be fine, although the recommended commercial Grade B is a good option.
Not a problem unless water level is below the THERMOCOUPLE/SENSOR. If this happens, the eggs will be either be a little undercooked (just top up with water to the water level mark and start cooking process again) or overcooked (still acceptable within the soft boiled (half boiled) eggs standard).
Not a problem. But bear in mind not to reprocess the eggs again which this might resulting the egg yolk to become more concentrate but still acceptable
Remove the eggs from the machines, and then process the new batch. Once the new batch process is completed (LED turns green), you can safely place the previous balance of eggs back into the machine and ready to serve.