How It’s Made: Bourbon

How It’s Made: Bourbon

Summary: How Bourbon Whiskey is Made

This video provides a detailed look at the production of bourbon whiskey, a distinctively American spirit recognized by Congress. It traces the process from the selection of grains to the aging in charred oak barrels, highlighting the strict regulations that ensure its quality and tradition.

Ingredients and Fermentation

By law, bourbon must be made from a grain mix that is at least 51% corn. The process begins with grinding corn, malted barley, and wheat, which are then cooked with limestone-rich Kentucky water. A special yeast formulation triggers fermentation, turning the mash into “distillers beer.”

Distillation and Aging

The liquid is distilled twice to increase alcohol concentration, resulting in a clear spirit known as “white dog.” It is then diluted and stored in new, charred white oak barrels. During aging, the whiskey expands and contracts with temperature changes, absorbing color and flavor from the caramelized sugars in the wood.

Final Thoughts

The video emphasizes that bourbon is a product of time and tradition. From the specific grain requirements to the unique barrel aging process, every step is carefully regulated to produce the amber-hued spirit known worldwide.

Vocabulary Table

Term Pronunciation Definition Used in sentence
Distill /dɪˈstɪl/ Purify (a liquid) by vaporizing it, then condensing it by cooling the vapor, and collecting the resulting liquid. Once distilled, these bits will settle out in separate batches.
Ferment /fərˈmɛnt/ Undergo fermentation; the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms. As the grains’ sugars ferment and become alcohol.
Mash /mæʃ/ A mixture of mashed malted grain and hot water, used in brewing and distilling. They add a bit of mash from a previous batch.
Charred /tʃɑːrd/ Burnt and blackened. The whiskey is stored in new, charred white oak barrels.
Proof /pruːf/ A measure of the content of ethanol (alcohol) in an alcoholic beverage. The alcohol concentration rises to a strong 130 proof.
Vaporize /ˈveɪpəraɪz/ Convert or be converted into vapor. It vaporizes the alcohol and then analyzes the flavor compounds.
Condense /kənˈdɛns/ Make (something) denser or more concentrated; change from gas to liquid. The alcoholic vapor rises up to be condensed into liquid.
Dilute /daɪˈluːt/ Make (a liquid) thinner or weaker by adding water or another solvent to it. Water has been added to dilute the whiskey.
Amber /ˈæmbər/ A honey-yellow color. This amber hue brew was first cooked up by settlers.
Settler /ˈsɛtlər/ A person who moves with a group of others to live in a new country or area. Scottish and Irish settlers in Kentucky.
Regulate /ˈrɛɡjʊleɪt/ Control or supervise (something, especially a company or business activity) by means of rules and regulations. The American government regulates the making of bourbon.
Yeast /jiːst/ A microscopic fungus consisting of single oval cells that reproduce by budding, and are capable of converting sugar into alcohol and carbon dioxide. They add a special yeast formulation.
Distinct /dɪˈstɪŋkt/ Recognizably different in nature from something else of a similar type. Congress recognized it as a product distinct to the nation.
Formulation /ˌfɔːrmjʊˈleɪʃən/ A mixture that has been prepared according to a specific formula. Depending on the formulation.
Porous /ˈpɔːrəs/ (of a rock or other material) Having minute spaces or holes through which liquid or air may pass. The wood is porous, allowing the whiskey to breathe.

Vocabulary Flashcards



While-viewing Tasks

Complete these tasks while watching the video:



Guided Notes

Fill in the key information as you watch:

  • Percentage of corn required by law:
  • The name given to the clear, unaged spirit:
  • The type of wood used for the barrels:

Questions to Answer

  1. What role does the “char” inside the barrel play in the aging process?
  2. Why is the water in Kentucky specifically good for making bourbon?
  3. What happens to the whiskey during the “cycles” of hot and cold weather?

Checklist

  • Hear the term “distillers beer.”
  • See the barrels being charred with fire.
  • Note the mention of “limestone-rich water.”

Embedded Video:

Fill in the Blanks Exercise

1. Bourbon must be made from at least 51% .

2. The barrels are made of white .

3. The clear spirit is called “white “.

4. The inside of the barrel is with fire.

5. Kentucky water is rich in .

6. is added to start fermentation.

7. The liquid mixture is called .

8. Bourbon is distilled .

9. The whiskey draws flavor from the .

10. The aging process gives bourbon its color.

11. The US recognized bourbon as a distinct product.

12. Carbon is released during fermentation.

13. Samples are tested in a .

14. Distillers also use malted .

15. The barrels are stored in a (or warehouse).

Vocabulary Quiz

1. To “ferment” means to:

a) Cook with heat
b) Chemically break down using yeast
c) Freeze
d) Chop into pieces

2. What does “charred” mean?

a) Burnt and blackened
b) Painted white
c) Soaked in water
d) Polished

3. “Proof” refers to:

a) The price of the whiskey
b) The age of the whiskey
c) The type of barrel
d) The alcohol content

4. To “distill” means to:

a) Mix ingredients together
b) Store in a warehouse
c) Purify by vaporizing and condensing
d) Grow grains

5. “Mash” is:

a) A type of potato
b) A mixture of grain and hot water
c) A finished drink
d) A type of barrel

6. “Amber” describes:

a) A honey-yellow color
b) A spicy flavor
c) A type of wood
d) A clear liquid

7. To “vaporize” is to:

a) Freeze solid
b) Melt into liquid
c) Burn to ash
d) Turn into gas or mist

8. “Yeast” is primarily used to:

a) Add color
b) Convert sugar to alcohol
c) Clean the equipment
d) Char the barrels

9. To “dilute” means to:

a) Make stronger
b) Heat up
c) Make weaker by adding water
d) Filter out solids

10. Something that is “porous”:

a) Has small holes allowing liquid/air to pass
b) Is completely solid and watertight
c) Is very expensive
d) Is made of metal

Fact or Fiction Quiz

1. Bourbon must be made from a grain mix that is at least 51% corn.

a) Fact
b) Fiction

2. The clear spirit before aging is known as “yellow dog.”

a) Fact
b) Fiction

3. Bourbon is aged in new, charred white oak barrels.

a) Fact
b) Fiction

4. Distillers are not allowed to use any mash from previous batches.

a) Fact
b) Fiction

5. Temperature changes cause the whiskey to expand and contract in the barrel.

a) Fact
b) Fiction

Extension Activities

Choose from these activities to extend your learning:



The Bottled-in-Bond Act

Research the “Bottled-in-Bond Act of 1897.” Write a short summary explaining why it was passed and how it changed the American whiskey industry.

Difficulty:
Medium

Flavor Wheel

Work with a partner to create a “flavor wheel” for bourbon. Categorize common notes (e.g., vanilla, caramel, oak, spice) and discuss where each flavor comes from (grain, yeast, or barrel).

Difficulty:
Easy

The Chemistry of Aging

In a small group, investigate the chemical reactions that occur between the alcohol and the charred wood. Present your findings on how lignin, tannins, and cellulose contribute to the final product.

Difficulty:
Hard

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