To test how well amylase would break down starch in a very hot temperature, 100ml of water was put into a beaker with a Celsius thermometer and heated until boiling (100 degrees Celsius) using the electric hot plate set on high. When the water was boiling, two test tubes were placed into the hot beaker.One had 2ml of starch in it and the other (the control for all of these experiments) had 2ml of water in it. The test tubes were then allowed to heat in the water-filled beaker. Next, two drops of amylase were added to each of the test tubes.hen the water was boiling, two test tubes were placed into the hot beaker. One had 2ml of starch in it and the other (the control for all of these experiments) had 2ml of water in it. The test tubes were then allowed to heat in the water-filled beaker. Next, two drops of amylase were added to each of the test tubes.