Podcast
Questions and Answers
What is the main purpose of the grinder in an espresso setup?
What is the main purpose of the grinder in an espresso setup?
- To grind roasted coffee beans (correct)
- To froth milk using steam
- To clean the espresso machine components
- To dispense hot water for espresso
What should be done to the steam wand before texturing milk?
What should be done to the steam wand before texturing milk?
- It should be turned off to save energy
- It should be replaced with a new one
- It should be purged to remove any residual water (correct)
- It should be cleaned and dried
What is the significance of the group head in an espresso machine?
What is the significance of the group head in an espresso machine?
- It contains the steam wand for milk texturing
- It holds the tamper for packing coffee grounds
- It grinds the coffee beans for the espresso
- It is where water for making espresso is dispersed (correct)
How does a tamper aid in the espresso making process?
How does a tamper aid in the espresso making process?
What are the two common sizes of group handles used in commercial espresso machines?
What are the two common sizes of group handles used in commercial espresso machines?
Flashcards
Espresso Machine Pre-heat Time
Espresso Machine Pre-heat Time
Allow the espresso machine to run for at least 20 minutes before use, to warm up the system and improve coffee extraction.
Grinder Function
Grinder Function
The grinder is used to grind roasted coffee beans into a consistent size for use in an espresso machine.
Grinder Daily Prep
Grinder Daily Prep
Before starting the day, turn on the grinder and fill the hopper with freshly roasted coffee beans.
Steam Wand Function
Steam Wand Function
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Steam Wand Purge
Steam Wand Purge
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Group Head Function
Group Head Function
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Group Head Cleaning
Group Head Cleaning
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Group Handle Capacity
Group Handle Capacity
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Tamper Function
Tamper Function
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Tamper Size
Tamper Size
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Study Notes
Espresso Machine Components
- Espresso machines should be preheated for at least 20 minutes before use.
- Key components include a group handle, volumetric programmed button, steam valve, power on/off, drip tray, group head, hot water button, hot water dispenser, pressure gauges, and steam wand.
Grinder Components
- The grinder is used to grind roasted coffee beans.
- It's typically located next to the espresso machine.
- The hopper should be filled with beans before use.
- Grinder components include a hopper, collar, dosing chamber, tamper, loading bay, gate, and dosing lever.
Steam Wand Use
- The steam wand is used to heat and texture milk.
- It should be purged before and after use.
- Milk should be heated gradually, using circular motion.
Group Head Function
- The group head is part of the espresso machine.
- It dispenses water for espresso.
- It includes a shower screen, brass plate, drainage pipes, and drip tray.
- It should be cleaned before and after use.
Group Handle Use
- Ground coffee is dispensed into a filter basket within the group handle.
- A single group handle holds one dose of coffee for one shot of espresso.
- A double group handle holds two doses of coffee for two shots of espresso/ristretto.
Tamper Function
- A tamper is used to compact coffee grounds in a basket.
- This creates resistance for the water to extract the coffee oils.
- Tamper size correlates with the basket size - commercial machines usually use 58mm baskets, while domestic machines use 50-54mm.
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