Experiments

• Cook the rice with one part rice and 1.5 part water in the rice cooker (do 6 times with all the types of rice

• Pound the yeast to make sure it's powdery, and have no lumps

• Measure 100g of each rice (cooked) with a weighing scale

• Measure 2g of yeast for each type of rice with a weighing scale

• Put measured cooked rice and yeast in the container (repeat all 6 types of rice)

• Cover the container with cap

• Wait for 168 hours (one week)

• Open the containers and take out liquid with syringe

• Put 2 drops of the liquid on the refractometer prism

• Close the glass plate

• Look through the eyepiece at it while facing the light

• The line that is separating the blue and white portion is the alcohol concentration

• Repeat steps 1 to 12 for another set of rice

To see the reading, there would be a blue area and read the line where the blue area stops. E.g. In Fig.1, the reading is zero.

Event Log 1

Date: 7 feb 2022

Details: We scooped rice into the containers (5 out of 6 of the rices), added water and the yeast

Event Log 2

Date: 8 feb 2022

Details: We started the fermentation for the final type of rice (japanese) as we did not have it the day before.

Event Log 3

Date: 14 feb 2022

Details: We opened the containers other than the container that was sealed on 8th feb and tried to measure the amount of alcohol but we failed.

Event Log 4

Date: 15 feb 2022

Details: opened the last container and tried to measure it but the alcohol refractometer was being uncooperative so we didnt have enough time to complete it. Everytime we had tried to test for the alcohol levels, the reading on the refractiometre was all white. There was no blue line or blue space for us to know the results. We decided that we had to change the cloth in which we used to clean the refractiometre. We also cleaned the refractiometre with distilled water everytime after use and we managed to get some results.