| 摘要 |
A cooking oil filtering method comprises the steps of connecting the drain outlets of a series of cooking vats to a pre-filter via inlet valves controlling the connection of each vat to the pre-filter, connecting the outlet of the pre-filter to a second filter assembly, connecting the outlet of the second filter assembly to the inlets of the cooking vats via return valves controlling the return of oil to each vat, and controlling operation of a pump and opening of the inlet and return valves to successively pump oil from each vat in turn through the pre-filter and filter assembly before returning it to the vat.
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