This document provides instructions for fermenting and distilling ethanol from corn. Key steps include: 1. Grinding corn and mixing it with water and enzymes at 170-180°F, then cooling to 85°F before adding yeast. 2. Fermenting the mixture for 3-7 days in a sealed bubbler tank. 3. Pouring the fermented mixture into a distiller and heating it to distill ethanol, which collects in the condenser section.

1. ETHANOL FERMENTATION &
DISTILLATION
PTAC 2438-OPERATIONS
PROFESSOR NICHOLSON
TEAM 3
JAMAYAL HANNER
SAHR GBORIE
HECTORHERNANDEZ

2. SAFETY
• Wear any protective equipment if
needed
– Gloves
– Goggles
– Aprons
• Do not taste materials
• No horse playing

3. ORGANIZATION: KNOW YOUR MATERIAL
• Organize your material
– Corn (5 Pounds)
– Distilled Water (2
Gallons)
– Pot
– Gas heater set up
– Tablespoons
– Alpha Amylase
Enzyme
– Fleischmann’s Yeast
– Distiller’s Yeast
– Yeast Nutrient
– 45L Alcohol Distiller

4. BEGIN SET UP
1. Set up gas heater
– Make sure there is no leaks
– Know what position your valves
are in (on or off)
2. Start grinding corn in
blender/grinder
– Grind 5 Pounds of corn
– Corn does not need to be
grinded all the way
3. Start heating water in pot
– Fill pot with 1.5 Gallons of water
– Raise temperature to around
170°F-180°F
4. Pour the grinded corn into the pot
with water

5. ADDING ENZYMES(1)
1. Make sure the pot
mixture is in the range
of 170°F- 180°F
2. When it is, add 3
tablespoons of Alpha
Amylase Enzyme
(mixed in water) to the
mixture
3. Maintain mixture
stable at same
temperatures for 15
minutes while
agitating it
aggressively as you
can

6. ADDING ENZYMES(2)
1. When 15 minutes are up,
check the mixtures viscosity
– If it looks to thick, add the
rest of the water (.5G)
2. Continue agitating mixture for
20 minutes more
3. When 20 minutes have
passed, add another 3
tablespoons of Alpha Amylase
Enzyme
4. Agitate mixture for 30
minutes more at same
temperature range

7. ADDING YEAST
1. When the 30 minutes are done,
bring down the temperature to 85°F
– Use any cooling method to bring
the temperature down like
frozen water bottles or ice in the
sink or both
– Make sure temperature is stable
at 85°F or lower or Yeast will
have no effect
2. Add (all should be premixed in
water)
– ½ tablespoons of Fleischmann’s
Yeast
– 3 Tablespoons of Distiller’s
Yeast
– 3 Tablespoons of Yeast Nutrient

8. THE BUBBLER TANK
1. After mixing, pour contents
into bubbler tank
– Make sure valve on
tank is closed
2. Close the tank with
assigned lid and small
degassing chamber
– Fill up small chamber
with water to indicated
level
3. You will now let the
chemical reactions take
place for 3 – 7 days at
room temperature

9. DISTILLATION
1. After 3 - 7 Days, set up the 45L alcohol distiller
– Make sure all gaskets are installed properly
– Check if valves are opened or closed
– Check if copper sponges (packing) is in good
condition
– Be conscious of the thermostat reading (it is in
Celsius not Fahrenheit)
2. Set up gas heater
3. Pour in contents of the bubbler tank into the alcohol
distiller
4. Seal with gaskets and clips
5. Mount the alcohol distiller into the gas heater
6. Connect hoses to condenser section of the distiller
– Start water flow

10. PROCESS COMPLETE
Congratulations!
Ethanol should be
dripping from the condenser
section