Inedible grease

Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Caustic soda solution (3) Oils, edible fish (13) Grease (inedible, yellow) (13) Lard (edible) (13) Linseed oil (raw) (13) Methylene chloride (5) ... 

Rendered beef, pork, poultry, and other animal fats are not well reported internationally, and global statistics are unreliable. Total production of fats in the United States by the rendering industry for 2000 is estimated at 4.18 million metric tons.68 Outputs of all rendering facilities captive to integrated broiler operations might not be included. Of the amount reported, 76 percent is inedible tallows and greases, 18 percent is edible beef or mutton tallows, and 6 percent is edible pork lard. 

Rendering produced an estimated 4.18 million metric tons of animal fats was produced in the United States in 2000 by rendering.87 Of this amount, approximately 18 percent and 6 percent were edible tallow and lard, respectively, and 41 percent and 35 percent were inedible tallow and grease. Approximately 15 percent and 34 percent of the edible tallow and lard, respectively, and 37 percent of the inedible tallow and grease were exported. Of the inedible tallow and grease used in the United States, an estimated 75 percent was used as animal feed, 16 percent was converted to fatty acids by the oleochemicals industry, 4 percent was used in soaps, and 3 percent in lubricants. Inedible animal fats are the lowest cost domestic fat sources. Their market price per pound sometimes is less than fuel oil, and rendering plants have chosen to bum them as fuels. In 2001, animal fats were included with vegetable oils for federally supported trials of biodiesel fuel. 

Grease production data are often lumped with that for inedible tallow. Greases constitute about 45% of this total and are used exclusively in nonedible applications. In the United States, the use of yellow grease in animal feeds is increasing yearly and in 2000 accounted for 36% of total feed fat usage (62). 

Pounds of oil production are a 3-year average (1993-1995) from OH Crops Yearbook, October 1997, USDA, ERS with the followihg exceptions rapeseed was calculated by multiplying oil per acre times the 1993-95 average humber of acres harvested. Number of harvested acres comes from USDA, NASS, January 1996. Inedible tallow and yellow grease supply comes from US. Department of Commerce, Bureau of the Census, Fats and Oils, Production, Consumption and Stocks, Annuai Summaries 1993-1995. 

In the United States, inedible fats are called tallows if, after saponification in the American Oil Chemists Society s titer test (AOCS Cc 12-59), solidification occurs above 40°C (104°F), and greases if solidification occurs below this temperature (1). The demarcation temperature varies among countries and 38°C (100.4°F) is used by some. Throughout this chapter, the term tallow refers to both tallows and greases, which also may contain vegetable oUs, recycled by renderers. 

The majority of the rendered fat produced is inedible tallow and grease. A large portion of the market for inedible tallow and grease is accounted for by animal... 

In the field of edible fats and oils, four associations provide data. The Institute of Shortening and Edible Oils, Inc., in Washington, D. C., issues a monthly report of statistics available on any of the following products cottonseed oil, soybean oil, peanut oil, corn oil, federally inspected lard, and creamery butter. Data are compiled from various government sources and may indicate consumption, supplies, and disappearance, including exports and re-exports. In addition some price information, as well as some statistics on inedible oils, such as tung, linseed, animal fats, and greases, are assembled. 

Inedible fats, oils, grease and tallow. Hearings, Eightieth Congress, 1948. 

In million hectares (2.47 acres). In metric tons per hectare. In million metric tons. In million metric tons, converted to 44% (soybean) protein equivalent. In million metric tons. In million metric tons, transhipments for palm oil through Singapore excluded. Converted to fat content basis. Inedible and edible tallows and greases included. 

Animal by-products, condemned carcasses and parts from packing plants, trimmings and bones from butcher shops, spent frying fats/oils, and fats collected from restaurant and food service kitchen grease traps are dry-rendered to produce inedible fats and oils. 

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