I confess I am a little puzzled about washing eggs in warm water, although I do it because we are told to. Understand I'm a little dyslexic so bear with me. I believe it was
@aart who said earlier in this thread that we should wash in water warmer than the egg because (I paraphrase) washing in
cold water causes the
contents of the egg to shrink, drawing the (soapy?) water and/or any dirt or bacteria on the shell through the pores of the shell into the interior of the egg, contaminating it; and I understand this is the prevailing wisdom.
However, this doesn't entirely make sense to me. Here's my question. Shouldn't we wash in
cold water instead? Because cold water will cause the
shell to shrink, rather than the contents? The shell is dense and, as the protective outer covering of the egg, it seems to me that the shell would shrink first, reacting to the cold, protecting the contents of the egg from feeling the chill of the cold water. In cold water the pores of the shell should shrink and tighten. Of course, this assumes that the one washing the egg does so quickly, before the chill can reach the inner parts of the egg. Conversely, washing the egg in
warm water, it seems to me, would cause the pores of the shell to open up - resulting in water, soap and any filth or bacteria on the outside of the egg to leak through the pores of the shell, thus contaminating white and yolk.
This, at least, seems logical and reasonable to me based on the laws of thermodynamics.