I was looking at them too. The price is on the high side so I opted out..I found a good way to almost completely eliminate the fines (dust), is by keeping the bag upright at all times... Scoop the pellets from the top of the bag and when you get near the bottom be on the lookout for the nasties..At that point sift the remainder,there shouldn't much to sift. ...By doing so movement of the bag and digging into the pellets will cause the fines to drop...Never pour pellets from the bag as it defeats the purpose..I am sure there will be comments on pouring..