All terms
Distillery glossary
Column Still
A column still (continuous or Coffey still) distills continuously by passing wash down a tall column against rising steam, separating alcohol across multiple plates. It produces high-proof spirit efficiently at scale.
Column stills are the workhorse of large bourbon and grain-whiskey production because they run continuously and reach high proof in a single pass. The trade-off is a cleaner, lighter distillate with fewer congeners than a pot still. Output is measured by proof and volume coming off the still, which feed yield and proof-gallon calculations.
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