For the perfect dissolution of the groundbait material and the consittent distribution of its flavors and aromas, the first aspect is that the groundbait material is completely homogeneous. This is achieved by breaking through the sieve several times. Among the sieves of different sizes and mesh sizes, we can find the right one for our bucket and tub, but the sizes of the boxes on the bait tray were not left out of the assortment either. The sieve can also be used to selecting and crawl through maggots.