A vented pouch is described which comprises: first and second opposed panels; a base gusset; and, a gas filter arrangement oriented in one of the panels. The gusset member is preferably oriented between the panels, along edges thereof, to form a base by which the pouch can be stood-up during use. Preferably, the pouch is provided with a rib and trough closure arrangement extending thereacross. A preferred method for formation of preferred such pouches is also described.