First – no, you don’t have to steep e-juice if you don’t want to. However, some vapers swear that steeping is the best way to experience the true flavor locked inside e-juice. The process is simple – it’s just exposing the juice to the air for about half an hour or so periodically. Depending on the type of flavor (tobacco, fruit, dessert, etc.), different steeping time recommendations are ranging anywhere from 1-4 weeks.