Question: how long does it take for coffee to get out of breastmilk?
Answer: The half-life* of caffeine is about 97.5 hours in a newborn, 14 hours in a 3-5 month old baby and 2.6 hours in a baby older than 6 months. In comparison, the half-life of caffeine in an adult is 4.9 hours. (Hale 2008 pg. 139) Peak levels of caffeine in breastmilk are found 60 -120 minutes after intake.