How exactly do you weigh your flour? Do you have a large scale to weigh all 50#? Do you use a smaller scale and weigh 10# at a time? Other?Weigh it…always! We did a number of studies on this and we found that there can be as much as 12 to 14-ounce variation in flour weight between different 50-pound bags on a pallet, however, if you weigh 20-bags together you will have 1,000-pounds on the scale.