Vacuum coffee maker

Vacuum Coffee Maker

A Vacum Coffee Maker, also known as a siphon coffee maker or vac pot, is a brewing method that uses two chambers where vapor pressure and vacuum produce coffee. This type of coffee maker is also known as vac pot, siphon or syphon coffee maker, and was invented by Loeff of Berlin in the 1830s.

History

The vacuum coffee maker was invented in Germany in the 1830s by a man named Loeff. The design was later refined and popularized by a Scottish marine engineer named Robert Napier. The vacuum coffee maker became a popular method of brewing coffee in the 19th century, especially in Europe.

Design and Function

The vacuum coffee maker consists of two chambers. The lower chamber is filled with water, and the upper chamber is filled with coffee grounds. When the lower chamber is heated, the water rises into the upper chamber due to the increase in vapor pressure. Once the heat is removed, the vapor pressure decreases and the water is sucked back into the lower chamber through a filter, which separates the water from the coffee grounds. This process results in a clean, crisp cup of coffee.

Brewing Process

The brewing process in a vacuum coffee maker is unique and involves several steps:

1. Fill the lower chamber with water.
2. Place the upper chamber on top and secure it.
3. Add coffee grounds to the upper chamber.
4. Apply heat to the lower chamber.
5. Remove the heat once all the water has moved to the upper chamber.
6. Allow the coffee to filter back into the lower chamber.

Advantages and Disadvantages

Like any brewing method, the vacuum coffee maker has its advantages and disadvantages.

Advantages

1. It produces a clean, crisp cup of coffee.
2. It allows for precise control over brewing variables.
3. It is visually appealing and can be a conversation starter.

Disadvantages

1. It requires more attention and time than other brewing methods.
2. It can be difficult to clean.
3. It is more fragile than other types of coffee makers.

See Also

• Coffee
• Coffee Brewing
• Coffee Maker
• French Press
• Espresso Machine

References

• National Coffee Association - How to Brew Coffee
• Coffee Chemistry - Vacuum Brewing History

External Links

• How to Use a Vacuum Coffee Maker
• CoffeeGeek - Siphon Coffee Brewing Guide