His meatpacking plants pioneered new principles of large-scale organization and refrigeration to the industry. Firstly, Armour implemented the assembly line in order to speed up production. Additionally, Armour was one of the first to take action to reduce the tremendous waste inherent in the slaughtering of hogs and to take advantage of the resale value of what had been waste products. His biggest concern was ensuring that every part of the animal was made useful, "thus, out of meatpacking came auxiliary industries such as glue, fertilizer, margarine, lard, gelatin." Armour famously declared that he made use of "everything but the squeal". By developing these profitable manufacturing innovations and expanding the reach of his company, Armour & Co. became one of the largest meatpacking firms in America by the 1890s. It earned an estimated $110 million in 1893 and established Armour's position as one of the great industrialists of the Gilded Age.