Yes, it requires sustained mechanical agitation for a period of time that you can't really accelerate without severely damaging the product. Add to that that you really can't start settling the product until _after_ its in the container. Maybe you oversize the bag, leave it open while settling (keep in mind that the atmosphere in the container is frequently not room air), before finally sealing and trimming off the excess? Or you could skip all that and just ship the same amount of product, using the same amount of packaging, and save the energy input and cycle time needed to pre-settle the product.