Decanters are often used for dinner parties when the hosts know that the entire bottle is going to be consumed before the end of the meal. Typically, a bottle that is poured into a decanter typically takes anywhere from 30-120 minutes to fully open up. This time frame may be less than ideal if you are just looking to unwind with a singular glass at the end of a long day. What uses like most about these products is that they can perform decanting tasks on a singular serving before it even reaches you glass, and it typically takes between 1-6 seconds to aerate 1 ounce, depending on the quality of product.