Breastfeeding and alcohol safety centers on limiting exposure to the baby and planning around feeding. The general guidance emphasizes caution and planning rather than a hard universal limit, since effects can vary by quantity, timing, and individual metabolism. Direct answer

• The safest approach is to avoid alcohol while breastfeeding. If choosing to drink, the guidance across reputable health sources is to minimize exposure by keeping it to very small amounts and timing feeds to reduce the baby’s exposure.
• A common practical rule you’ll see is to wait a period after drinking before nursing to allow alcohol to clear from the bloodstream and breast milk. A typical recommendation is to wait about two hours per standard drink before the next feeding. If you have more than one drink, extend the wait accordingly, or consider expressing and discarding milk for that period if you need to feed sooner.
• A “standard drink” varies by country, but often it’s roughly:
  • About 14 grams (0.6 ounces) of pure alcohol, which translates to:
    • A small glass of wine, a half-pint to a full pint of beer (depending on beer strength), or a standard shot of spirits.
• Important caveats:
  • Regular or heavy drinking can affect milk production, the baby’s growth and sleep, and your ability to care for the baby.
  • Never rely on pumping or discarding milk to “speed up” alcohol clearance after drinking; it does not remove alcohol from milk faster.
  • If you’re unsure or your baby has special health considerations, consult a healthcare professional for personalized guidance.

If you’d like, I can tailor this to your location’s guidance (country-specific definitions of a standard drink and recommended waiting times) or help you plan a schedule around a planned drink care routine.