Brandy used to distill brandy: A cucurbit was filled half full of the liquor from which brandy was to be drawn and then raised with a little fire until about one-sixth part was distilled, or until that which falls into the receiver was entirely flammable. This liquor, distilled only once, was called "spirit of wine" or "brandy". Purified by another distillation (or several more), this was then called "spirit of wine rectified". The second distillation was made in "balneo mariae" and in a glass cucurbit, and the liquor was distilled to about one half the quantity. This was further rectified as
Brandy of brandy produced. Cognac and South African brandy are examples of brandy produced in batches while many American brandies use fractional distillation in column stills. After distillation, the unaged brandy is placed into oak barrels to mature. Usually, brandies with a natural golden or brown colour are aged in oak casks (single-barrel aging). Some brandies, particularly those from Spain, are aged using the solera system, where the producer changes the barrel each year. After a period of aging, which depends on the style, class and legal requirements, the mature brandy is mixed with distilled water to reduce alcohol concentration and