Annual Washington Post Bucket Event 2010

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After one gallon of skim milk is heated up to 130 degrees, vinegar is... News PhotoArlington - Virginia,Gallon,Horizontal,Human Interest,Milk,USA,VinegarPhotographer Collection: The Washington Post 2013 The Washington PostARLINGTON, VA, JANUARY 28, 2013: After one gallon of skim milk is heated up to 130 degrees, vinegar is added to it. (Photo by ASTRID RIECKEN For The Washington Post via Getty Images)