Using four small pieces of bare pine wood, I did an experiment to see what color variations I could come up with.Β Β
In each glass I placed the following amounts of instant coffee powder, to which 1 cup of water was added:
Glass 1:Β 1 tablespoon of dark roast instant coffee
Glass 2:Β 2Β tablespoons ofΒ dark roastΒ instant coffee
Glass 3:Β 3Β tablespoons ofΒ dark roastΒ instant coffee
Glass 4:Β 4Β tablespoons ofΒ dark roastΒ instant coffee