Vented container containing a liquid product with particulate solids

A container comprising flexible walls made of a deformable material, said container comprising a liquid product, the container enabling the venting of the liquid product by a venting means, the venting means for allowing the passage of gases between the interior and the exterior of the container when the pressure inside the container differs from the ambient pressure, the venting means further being permeable to gases, but impermeable to the liquid product, the liquid product comprising particulate solids selected from the group consisting of carbonate, percarbonate, perborate and mixtures thereof, the particulate solids being suspended in the liquid product, wherein the maximum size of the particulate solids is not greater than 400 μm, and wherein said venting means is in an inclined or perpendicular position with respect to the supporting plane upon which the container stands in its upright condition.