A method to stimulate tree sap self-ejection from a tree through a plurality of spouts by wrapping a tree with a metal liner and a flexible tube, adding an insulation shell then heating or chilling a portion of a tree trunk by flowing heated or chilled a freeze resistant fluid through the flexible tube. At least one fluid pump, heat exchanger and controller are used to modulate temperature based on forest information and weather historical information to create a more efficient sap collection and processing method.
