Farmer’s Daughter’s five-ounce bottle of sweet potato-habanero hot sauce starts in a 100-liter, stainless steel wine barrel. First, April McGregerwho started the home-based business of pickles and preserves in 2007chops up habanero and ahi dulce peppers. The latter, she explains, “are sweet and red, with a fruitiness similar to a habanero but not as hot.” […]