Reply To: Fasting Home › Forums › Decaffeinated Coffee › Fasting › Reply To: Fasting June 27, 2013 2:44 pm at 2:44 pm #961873 Sam2Participant Josh: They are not an Asei D’rabannan. They are a R’shus that may or may not have the status of a Minhag that we’ve accepted nowadays. The Poskim discuss this at length.