Annual Washington Post Bucket Event 2010

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After the vinegar was added the mixture is left for 30 minutes to... News PhotoArlington - Virginia,Horizontal,Human Interest,USA,Variation,VinegarPhotographer Collection: The Washington Post 2013 The Washington PostARLINGTON, VA, JANUARY 28, 2013: After the vinegar was added the mixture is left for 30 minutes to cool down. (Photo by ASTRID RIECKEN For The Washington Post via Getty Images)