Using liquid co-products can provide feed cost savings, and with proper handling, storage, analysis, and delivery the full savings can be realized. Corn distillers solubles provide fat and crude protein, although amino acids will likely need to be supplied. Corn steep water has high crude protein and lactic acid, but will also need amino acid supplementation. Brewer’s yeast is another option with high protein, and liquid whey and whey permeate are two more co-products that can be used. Some of the potential co-products available include potato products, liquid wheat starch, sugar based liquids, and sauces. Optimal storage of ingredients should include agitation that reduces dead spots as much as possible, and two tanks per co-product to rotate out and to be cleaned between each batch. Inorganic and organic acids can be used to manage pH and keep ingredients like brewer’s yeast inactive. Liquid co-products should be added to feed when they are as fresh as possible. Proper analysis of ingredients will allow for specific formulation of diets, and the nutrient profile should be considered before purchase. The value of the feedstuff will also depend on the length the supply is expected to last, specific handling requirements, and the simulated growth performance on animals consuming the ingredient.