Fill in the Blanks (Reading & Writing)

Long before refrigeration, communities —reliedrelayedrelyingreliant on salting, smoking and fermenting to keep food edible through winter. Each method works by —inhibitingexhibitinginhabitingprohibited the growth of bacteria that cause spoilage. Modern food scientists still —studystudied onlystudyingstudies these traditional techniques, refining them with precise temperature and humidity —controlscontrollingcontrollers onlycontrolled.