Engineered for white linen. Reclaims hard to remove stains missed in pre-spotting procedures or washing process. Stain Pro 1 in your operation will put linen back in service. Do not mix with Stain Pro 3 or any acid. Open product bag, pour into empty washer. Product will fall into small holes in the drum and will not be in direct contact with the linen. Load washer with items to be reclaimed. Washer should be filled to proper capacity to ensure adequate mechanical agitation, and optimal results.