By LAWRENCE FELLOWS
A cigar or a piece of cheese may be rank if it smells strong enough. The same goes for butter in some countries.
For people in India, Ethiopia and some other places, butter is melted, skimmed, evaporated, strained, spiced and aged, and the stronger the smell and taste the better — up to a point.
Until that point, the butter is rank. Beyond that point, the butter is rancid, and should be thrown out, no matter how hard you work on achieving just the right smell.