A cold brew coffee filtration assembly having a closure. The closure includes a first side and a second side. The first side has a first coupling member configured to couple the closure to a first container. The second side has a second coupling member configured to couple the closure to a second container. A filter is between the first and the second coupling members. A support member supports the filter and defines an air channel extending through the support member and across the filter. A tube is configured to be connected to the support member and extend from the first side of the closure to a bottom of the first container when the first container is coupled to the first side of the closure, the tube further defining the air channel.