Vintage champagne must spend a minimum of three years of aging but only 9 months on its lees with some of premier Champagne houses keeping their wines on lees for upwards of five to ten years.
Vintage champagne must spend a minimum of three years of aging. There are no regulations about how long it must spend on its lees, but some of the premier Champagne houses keep their wines on lees for upwards of five to ten years.