how long does wine stay in your system?
<answer> Five ounce glass of wine will be in your system for approximately 15 hours. <context> On average it takes the body 3 hours to metabolize one ounce of wine. Therefore, a standard five ounce glass of wine will be in your system for approximately 15 hours. It takes about an hour for the body to metabolize one standard drink (five ounces of dinner wine). Fb.21217718989308.