Behind almost every restaurant in America there is a squat plastic tank with a lid that locks.<\/p>\n
What goes into it is the oil out of the fryers, strained, cooled and the color of syrup<\/strong>.<\/p>\n American kitchens pour out roughly 2 million gallons<\/strong> of it every day.<\/p>\n For most of the last century a restaurant paid a company to come and take that away.<\/p>\n The same company pays the restaurant today, and the lock is new<\/strong>.<\/p>\n Because the thing that changed here was never the oil. It was the price.<\/p>\n Yellow grease, which is the trade name for what comes off a fryer, moves between 21 and 41 cents<\/strong> a pound depending on the month.<\/p>\n A busy kitchen fills a tank in a couple of weeks, and one tanker route can empty a hundred of them in a day.<\/p>\n Multiply that across the country and the collection business handles around 850 million gallons<\/strong> a year.<\/p>\n That is roughly a quarter of everything gathered worldwide, which makes American fryers a serious supplier<\/strong> of a global commodity.<\/p>\n Nobody planned it that way. It fell out of a change in what refineries were willing to buy, and the kitchens simply happened to be holding the supply.<\/p>\n And the flip happened inside a single generation, which is why plenty of operators were slow to notice it.<\/p>\n Renderers have collected fryer oil for well over a century, boiling it down into soap, animal feed, cosmetics and industrial lubricants.<\/p>\n Those buyers paid very little, so the hauler charged the restaurant a removal fee<\/strong> and everybody treated the barrel as trash.<\/p>\n Then fuel policy rewrote the arithmetic. A gallon of used cooking oil earns credits at a refinery that a gallon of crude cannot.<\/p>\n The hauler started paying the kitchen instead, and the tank out back turned into a small revenue line<\/strong>.<\/p>\n A line that used to be a cost became a check in the mail<\/strong>.<\/p>\n Which explains a piece of equipment nobody would have bothered with a generation ago.<\/p>\n Grease tanks are sold with bolted steel lids<\/strong>, keyed hasps and level sensors that report a sudden drop straight to a dispatcher.<\/p>\n Collection trucks carry trackers, and a load travels with paperwork that follows the oil from the kitchen door to the refinery gate.<\/p>\n The industry association reckons that hundreds of millions<\/strong> of dollars worth of it goes missing across the country in a year.<\/p>\n So a bin that used to sit open in an alley is handled like a cash drawer<\/strong>.<\/p>\n Which is a strange sentence to write about the leftovers from a basket of fries, and it is the plainest measure of how far the price has moved.<\/p>\n Then comes the part that made the whole chain worth building in the first place.<\/p>\n The oil is stripped of water and food solids, then either reacted with alcohol into biodiesel or run through a hydrogen process<\/strong> that yields renewable diesel.<\/p>\n Push that same route a step further and the product is jet fuel, which is where the demand is heading, as the trade press<\/a> covers.<\/p>\n Fuel made this way can cut lifecycle emissions by up to 80 percent<\/strong> against fossil kerosene.<\/p>\n Airlines cannot reach that figure any other way today, so they are bidding against soap makers and feed mills for the same barrels, as the trade data<\/a> shows.<\/p>\n A basket of fries is an energy input<\/strong>, which nobody would have said out loud a generation ago.<\/p>\n Which leaves the awkward half of this, and it belongs to households rather than to restaurants.<\/p>\n Only about a quarter of the cooking oil used in American food service is recovered at all, and collection works out to roughly two and a half gallons a person.<\/p>\n Home kitchens are barely in the system, and most of what they use goes down a drain<\/strong> or into the trash inside a jar.<\/p>\n Down the drain it cools, clings to the pipe wall and builds the fat deposits that crews have to cut out of sewers by hand.<\/p>\n Cities have started running household drop off<\/strong> points at the same sites that already take paint and batteries.<\/p>\n The bottleneck is the one that turns up around an offshore project<\/a> or a coastal solar site<\/a>, where the hardware is never the hard part.<\/p>\n Somebody has to pay for the route that carries the material to whoever wants it.<\/p>\n So the useful move at home is a small one. Let the oil cool, pour it back into a bottle, and check what the county waste site takes.<\/p>\n The tank behind your local restaurant has a padlock on it<\/strong> for a reason.<\/p>\n","protected":false},"excerpt":{"rendered":" Behind almost every restaurant in America there is a squat plastic tank with a lid that locks. What goes into it is the oil out of the fryers, strained, cooled and the color of syrup. American kitchens pour out roughly 2 million gallons of it every day. For most of the last century a restaurant paid a company … Read more<\/a><\/p>\n","protected":false},"author":28,"featured_media":31048,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"oil","rank_math_title":"","rank_math_description":"","footnotes":""},"categories":[83],"tags":[],"class_list":["post-31047","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earth"],"_links":{"self":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/31047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/comments?post=31047"}],"version-history":[{"count":0,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/posts\/31047\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media\/31048"}],"wp:attachment":[{"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/media?parent=31047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/categories?post=31047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoportal.net\/en\/wp-json\/wp\/v2\/tags?post=31047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What the barrel out back is worth<\/h2>\n
How it stopped being garbage<\/h2>\n
Why the lid has a lock<\/h2>\n
From the fryer to the wing<\/h2>\n
The three quarters that get away<\/h2>\n