Adjust the thermometer in the refrigerator to 4*C (40* F).
11. Gather together 3 Earlenmeyer flasks and the 100% pure orange juice.
12.Take a small sample of juice and follow procedures A-E above three times, recording data on data table.
13. Fill the flasks to the 100mL mark with juice.
14. Set the flasks of juice in the refrigerator.
15. Wait for 6 hours, every three hours measuring vitamin C content of each flask once, for three trials, and recording on data table. (Steps A-E, above)
16. After the final measurement at 6 hours, dispose of juice.