The shortest time to marinade everything is 30 minutes and up to an hour. But, the longer you leave the marinade, the better the flavor would get: - For different meats such as chicken, pork, or beef, you can leave them in the marinade overnight or for up to 24hours.  - Seafood soaks the flavors much quicker and needs to be marinated shorter - 20 minutes for up to 1 hour.  - And lastly, vegetables can be left in the marinade for 20 minutes up to a day.