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Is the ice in a fast food restaurant really dirtier than the water in a horse bucket?
Do you know the principle of ice maker?

The ice maker pumps water into the ice tank through the circulating pump, and the water flowing through the ice tank condenses a little at a time. After a long time, the whole ice tank will be full. At this time, the ice tank automatically pours the ice cubes into the ice storage room.

Ok, after studying the principle of the ice machine, let's see where we feel "dirty":

1, the original water quality, the water used for the ice maker should be clean and hygienic reference water;

2, water tank wall, water pipe wall, pump shell scaling, scaling; (Because water can't be 100% impurity-free, fine impurities will accumulate over time and form dirt at the part where water flows. )

Air and dust are mixed together. The ice maker is not airtight. Dust and bacteria in the air are repeatedly washed into the water tank by water, left in the water, and finally condensed into ice cubes. )

General catering institutions will actively use clean drinking water; Air dust is almost negligible; Therefore, the main reason why the ice machine is dirty is the second point. If they have regulations to clean the ice machine regularly, it will greatly reduce the pollution caused by the second point.