HACCPCâu 179 / 240
How should a bimetallic stem thermometer be calibrated?
a.In an ice-water bath, adjusting to 32°F
b.In boiling oil, adjusting to 212°F
c.By leaving it in a hot oven
d.By comparing it to a wall clock
Giải thích
Calibrate a bimetallic stem thermometer in an ice-water bath, where it should read 32°F, adjusting the nut until it is accurate. This is the ice-point method used at the start of a shift.
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