500 gram (1.1lbs) Spray-dried sweat (blood) is quickly prepared with water. Perfect for sweat work! 500 grams of concentrate (1.1lbs)are equal to about 10 l (2,6 Gallons) of scent sweat. The WAIDWERK - Scent Sweat Concentrate is gained out of natural sweat through a specialtreatment. Sweat is heated and spray-dried at about 300° (572°F). What is left is powder-like protein without any synthetic odor- or aroma substances. The concentrate is thinned with water at a weight ratio of 1:15 to 1:20. This way only a dog can notice the very strong and game-neutral sweat odor.Should you, while working with young canines, only work with the "WAIDWERK-Scent Sweat" the later issue of your dog being misguided by other scents is a lot less likely.