Abstract: A drink cup baffle device and system are configured to control fluid from a drink cup to a drinker. The disclosed cup may comprise at least one of a convexity and a concavity on its inside circumference to hold the baffle device. The baffle device may include a first circular baffle insertable into the cup making first contact with fluid in the cup. The first baffle forms a seal against the inside wall of the cup and defines a first plurality of openings. The baffle device further includes a channel formed adjacent to the first baffle around the full circumference of the first baffle to receive fluid from the openings of the first baffle. The baffle device also includes a second circular baffle configured adjacent to the channel forming a seal against the inside wall of the cup and defining a second plurality of openings.