What are peaberries, and what makes them so special?A peaberry (also called caracol, or "snail" in Spanish) is a natural mutation of the coffee bean inside its cherry. Normally coffee beans grow two to a fruit, flat against each other like halves of a peanut, but a funny thing happens in about 5% of the world's coffee, and a bean is born an only child. They tend to be smaller, denser, and a little bit cuter than their flat cousins. Fans think they taste noticeably sweeter and more flavorful than standard-issue beans, but there is no real the difference. There is no way to tell from looking at the cherry itself whether there's a single- or double-bean inside and through the farms and mills, these peaberries need to be hand-sorted after picking and processing in order to be sold separately. In many cases, the peaberries are sold as competitively as flat beans and growers may hand-select these peaberries for at a premium because of the amount of labor involved in milling and sorting as well as their uncertain abundance during harvest seasons.