The article briefly introduces the production of biacetyl and the relations of fermentation technology and biacetyl.The ways of how to manage the content of biacetyl during beer brewing are discussed.

• 摘要简述了啤酒中双乙酰的形成机制及发酵工艺与双乙酰的关系，提出了在啤酒实际生产中双乙酰含量的控制方法。