No. The alcohol level in breast milk is essentially the same as the alcohol level in a mother’s bloodstream. Expressing or pumping milk after drinking alcohol, and then discarding it (“pumping and dumping”), does NOT reduce the amount of alcohol present in the mother’s milk more quickly. As the mother’s alcohol blood level falls over time, the level of alcohol in her breast milk will also decrease. A mother may choose to express or pump milk after consuming alcohol to ease her physical discomfort or adhere to her milk expression schedule. If a mother decides to express or pump milk within two hours (per drink) of consuming alcohol, the mother may choose to discard the expressed milk. If a mother has consumed more than a moderate amount of alcohol, she may choose to wait 2 hours (per drink) to breastfeed her child, or feed her infant with milk that had been previously expressed when she had not been drinking, to reduce her infant’s exposure to alcohol. Breast milk continues to contain alcohol as long as alcohol is still in the mother’s bloodstream.
Source: CDC
Link: https://www.cdc.gov/breastfeeding/breastfeeding-special-circumstances/vaccinations-medications-drugs/alcohol.html
