Barista Skills Revision - Part 1 - Ans

Identify the 5 advantages of harvesting & processing red coffee cherries.

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Answer explanation

Coffee beans picked & process with red berries:

1. has lower acid content

2. 2. higher aromatic oil

3. 3. smells more fragrant

4. 4. has smooth & mellow taste

5. 5. can be sold for higher price

What are the 3 disadvantages of using the Drum Machine to roast coffee beans?

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Answer explanation

Disadvantages are:

1. 1. Longer cooling time.

2. 2. Difficult to gauge the end time of roasting process from small glass panel.

3. 3. Have to wait for whole batch of coffee beans to finish roasting.

What are the 3 disadvantages of using the Fluid Bed Roaster to roast coffee beans?

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Answer explanation

Disadvantages are:

1. 1. Roasted beans must be removed on time; or else it may be over roasted.

2. 2. Machine is noisy, making it difficult for the roaster to hear the 1st & 2nd crack.

3. 3. Roasted coffee beans have no complexity & depth in flavor.

You are tasked to clean the doser grinder during the closing shift.
State the 5 steps, in sequential order to clean the doser grinder.

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Answer explanation

The steps in sequential order are:

1. 1. Remove excess coffee beans in the hopper.

2. 2. Clean the interior of the hopper with paper towel.

3. 3. Remove excess ground coffee from the dosing chamber.

4. 4. Clean the interior of the dosing chamber with paper towel.

5. 5. Wipe exterior of the grinder with a clean cloth.

Explain how the following factors affects coffee beans:
1. Oxygen
2. Moisture
3. Heat
4. Light

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Answer explanation

1. 1. Oxygen oxidizes coffee flavor.

2. 2. Moisture taints the volatile aromatic oils of coffee.

3. 3. Heat reduces coffee freshness.
   4. Light reduces coffee freshness as it contributes heat to the coffee beans.

List the 11 types of tools & equipment that you will need to prepare and serve a hot espresso.

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Answer explanation

Tools & equipment needed are:

1. 1. Coffee grinder

2. 2. Espresso machine

3. 3. Knockbox

4. 4. Knockbox cloth

5. 5. Tamper

6. 6. Tamper mat

7. 7. Timer

8. 8. Shot glass

9. 9. Demitasse cup

10. 10. Demitasse cup saucer

11. 11. Demitasse spoon