Reply To: Dor Yeshorim in Girls High School Home › Forums › Decaffeinated Coffee › Dor Yeshorim in Girls High School › Reply To: Dor Yeshorim in Girls High School March 14, 2012 2:18 am at 2:18 am #1157895 Jewish Guy9Member I had Dor Yeshurim last year. They take a small vile of blood and it takes about two minutes for each person.