Tropicana the US juice maker has been forced to recall 100,000 gallon-size jugs of orange juice sold at Sam's Club stores across the US because of fears of contamination from a cleaning solution. Tropicana said that close to 500 bottles of its "super size" Pure Premium Calcium orange juice, were inadvertently exposed to a solution used to clean bottling equipment. The expiry date on the bottles concerned is 15th April.