Can You Use Old Coffee Grounds?
You can use spent coffee grounds to make a scrub. However, the effects may not be as potent as fresh grounds. When you brew coffee, the heat may extract some oil and antioxidants from the grounds. To maximize the benefits, it is better to make a coffee scrub with fresh grounds. Of course, a scrub with old grounds can also benefit your skin, but the effects may be not as good as expected.
Glaser states that the older grounds could affect the texture of the scrub. Plus, fresh coffee grounds contain higher levels of caffeine and antioxidants, which may boost any skin-related benefits. [8]
