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The brown grease is not recycled and goes to landfills. On average 300 to 400 pounds (140 to 180 kg) of brown grease goes to landfill annually from each restaurant. [2] Passive grease traps and passive grease interceptors must be emptied and cleaned when 25% full.
Oil is a large kitchen supply cost for some restaurants, so obtaining cheaper oil can allow a marginal restaurant to reduce its overall expenses. Chinese food is generally heavily dependent on oil due to most foods being fried, so cheaper meal prices for many price-sensitive consumers are possible if gutter oil is used instead of virgin oil. [ 42 ]
Grease duct exhaust fan. A grease duct is a duct that vents grease-laden flammable vapors from commercial cooking equipment such as stoves, deep fryers, and woks to the outside of a building or mobile food preparation trailer. Grease ducts are part of the building's passive fire protection system.
A Buchan trap (alternative names: Bristol interceptor, [1] interceptor trap and disconnecting trap) is a device fitted in a domestic sewer pipe to prevent odours entering the pipe from the public sewer [2] and permeating the house, a common problem before individual plumbing fittings were separately trapped.
A greasy spoon is a small, cheap restaurant typically specializing in short order fare. [ 1 ] [ 2 ] A greasy spoon is often located alongside a main road to serve passing motorists, particularly a truck stop catering particularly to truck (lorry) drivers; this is known as a transport cafe in Britain [ citation needed ] .