A general overview of 18th Century Coffee and Camp Fire Roasting and Brewing [12:30 min YT video]
https://www.youtube.com/watch?v=ZQBZZ6P3aB0
17th/18th Century Coffee Substitute Using Pan Roasted Whole Wheat Berries [4:49 min YT Video]
https://www.youtube.com/watch?v=JQuZS61SezE