How do I stay below 0.05? To stay under the limit: For men of average size: no more than 2 standard drinks in the first hour and 1 drink per hour after that. For women of average size: no more than 1 standard drink per hour.
NIAAA defines binge drinking as a pattern of drinking alcohol that brings blood alcohol concentration (BAC) to 0.08 percent - or 0.08 grams of alcohol per deciliter - or higher. For a typical adult, this pattern corresponds to consuming 5 or more drinks (male), or 4 or more drinks (female), in about 2 hours.
While small amounts of alcohol leave your body in your urine, sweat and breath, your liver breaks down most of the alcohol. A healthy liver breaks down less than one standard drink per hour.