Eggs, To Choose
In choosing eggs, apply the tongue to the large end of the egg, and, if it feels warm, it is new, and may be relied on as a fresh egg.
Another mode of ascertaining their freshness is to hold them before a lighted candle or to the light, and if the egg looks clear, it will be tolerably good; if thick, it is stale; and if there is a black spot attached to the shell, it is worthless. No egg should be used for culinary purposes with the slightest taint in it, as it will render perfectly useless those with which it has been mixed. Eggs that are purchased, and that cannot be relied on, should always be broken in a cup, and then put into a basin: by this means stale or bad eggs may be easily rejected, without wasting the others.