[NateHowe]

When the Church sustained the action to require compliance with the prohibitions in the Word of Wisdom to receive a Temple recommend, the commandment on hot drinks was reiterated as applying to coffee and tea. Another source on that definition:

Joseph Smith "defined 'hot drinks' as tea and coffee, the two common household beverages of the day. Joel H. Johnson, with whose family the Prophet was intimate, relates that on a Sabbath day in July (1833) following the giving of the "Word of Wisdom," when both Joseph and Hyrum Smith were in the stand, the Prophet said to the Saints: "I understand that some of the people are excusing themselves in using tea and coffee, because the Lord only said 'hot drinks' in the revelation of the Word of Wisdom. Tea and coffee are what the Lord meant when he said 'hot drinks.' " [John A. Widtsoe and Leah D. Widtsoe, The Word of Wisdom: A Modern Interpretation (Salt Lake City: Deseret Book Company, 1937), 85-87.]

The Word of Wisdom, Caffeine, and Hypocrisy