Abstract: A silo for cereals has a sloped bottom including channels provided on their top sides with passages for the flow of air which is used in order to facilitate emptying the silo through an outlet opening. The passages have a tendency to become clogged by dust present in the cereals causing an obstruction to the flow of air. In order to prevent this, the end wall of each channel located in the vicinity of the outlet opening is provided with an opening for the passage of dust while at the same time limiting the amount of air flow through the opening.