The washing process is often poorly supervised, but there are approved chemicals and quantities which are supposed to be used.
Chlorine based detergent is recommended in all egg washers.
In the right concentrations it can be effective in removing debris and microorganisms from the shell of the egg,
Quaternary ammonia based products are used for
final sanitation and a defoamer is added to control excessive foam in the washer
The active ingredients in the sanitiser which is residual on the egg shell surface are:
1-OCTANAMINIUM, N,N-DIMETHYL-N-OCTYL-, CHLORIDE
This pesticide is used as a:
VIRUCIDE and is commonly found on the shells of most eggs – even from organic farms.