Pico Rico > wrote:

[ http://www.ochef.com/1009.htm ]

>Egg shells are porous. The hen makes up for this by adding a natural
>coating, but the government insists that eggs be washed and sanitized before
>being sold, which washes away the coating. The egg processor sprays on a
>thin coating of an odorless natural mineral oil to reseal the egg. But your
>cooking washes this coating away, as well, leaving a drafty shell once more,
>which is susceptible to the invasion of odors, off-flavors, and bacteria.

Thanks.

Tangentially I highly doubt the farm eggs I buy at the farmers market
have been sprayed with mineral oil. They are just eggs directly from
hens.

Steve