Washing of the lemons after harvest is necessary to improve the appearance of the fruit
by removing dirt, sooty mould, scale insects, and spray residues. Lemons can be cleaned
manually by hand rubbing or brushing individual fruit dumped in a tank of sanitized
water with detergent. Either sodium hypochlorite or sodium o-phenylphenate (SOPP) can
be used as sanitizing agents for the wash water. Sodium hypochlorite is readily available
in the form of household bleach. It is typically sold in a 5.25% solution. The wash water
should be sanitized with a 150 ppm sodium hypochlorite concentration and maintained at
a pH of 6.5