When is alcohol consumption mortally sinful?

When is drinking alcohol a mortal sin?

These links should be helpful for understanding the Church’s teaching on the consumption of alcohol and the moral implications of drunkenness. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.
Recommended Reading:
What does the bible really say about drinking?**
]* Is drinking alcohol a sin?**
]* Is getting drunk grave matter?**
]* Can I drink if I’m not 21?**
]* Does being drunk reduce culpability?**
]* driving under the influence**

DISCLAIMER: The views and opinions expressed in these forums do not necessarily reflect those of Catholic Answers. For official apologetics resources please visit www.catholic.com.