From The Star-K: Golden Raisins Alert

Recent extensive testing by many kashrus agencies has shown an increased infestation issue specifically in Golden Raisins.  The Star-K has not found a practical way for consumers to check them.  Therefore, the Star-K  is recommending that golden raisins not be used, regardless of the source, until further notice.  At this time, this alert does not apply to red raisins or currants.  Star-K still recommends that red raisins and  currants be purchased from companies/stores that have proper storage and quality control practices and that they be kept in a cool, dry place.  Avoid direct sunlight or warm, humid conditions.