A type of machine is a device that applies pressure to water by making espresso coffee. With some form of boiler as a heat source, a group of machines work together to produce the correct brewing temperature and maintain it throughout the extraction process.
The most common way for an espresso machine to achieve this is by heating water in a boiler to generate steam, which is then forced through the coffee by using levers, pumps, or taps. Other methods include percolation and infusion devices.
Switches control the heating element in the group boiler. The boiler pressure is controlled via a valve on its top; this allows for changes during extraction without stopping the process itself. There is usually either a pressure gauge or an indicator lamp underneath the group head to tell the operator whether the machine is ready for operation.
Espresso Machine Use
The first espresso machines were steam-driven (for example, by inserting a pipe into boiling water to create steam), but today, electric pumps are used almost exclusively. Machines may be manual or automatically controlled.
How to use an espresso machine?
Step by step procedure of using espresso machine is given below:
You need the following items for using an espresso machine:
Unused espresso filter
A new, unused espresso filter (metal or nylon), either round or flat bottom (recommendation: round bottom filters for best results)
Espresso beans (1/2 cup [~50g]) of your choice; recommend blends that contain dark-roasted, high caffeine content coffee.
Digital scale that reads in grams and ounces. If it only reads in pounds and ounces, convert the measurements accordingly: 1 pound = 453.6g ≈ 1 ounce = 28.4g ≈ 250ml water ≈ 17oz liquid measure ≈ 67g dry weight
Burr grinder (Optional)
Burr grinder; manual or electric grinders are fine too; you’ll need to grind finer. Burr is recommended for a more consistent particle size [to get a more accurate dosage].
Aero press Machine
Aero press or another device for brewing espresso from ground coffee
Timer, electric or otherwise. Recommended: a digital timer that can count up and be set for 1-minute increments, allowing the user to time the entire process accurately down to the second.
Kettle or pot
Kettle or pot with a temperature gauge (for heating water)
Digital kitchen scale
Digital kitchen scale that reads in grams and ounces. If it only reads in pounds and ounces, convert the measurements accordingly: 1 pound = 453.6g ≈ 1 ounce = 28.4g ≈ 250ml water ≈ 17oz liquid measure ≈ 67g dry weight
Cups of your choice; demitasse cups are recommended but not required (for two servings).
After getting all the items for using an espresso machine now, you have to follow all the instructions below:
- Weigh out 50 grams/~2 ounces of beans on a digital scale. Grind according to preference (recommendation: 18/18 setting on Baratza Virtuoso for Aero press brewing). Measure out 250ml/8 fluid ounces of water.
- Heat water to ~195F/90C (note: the ideal temperature is 194F/90.7C, but some people might find this too hot; use your judgment). Add heated water to the Aero press chamber and insert filter (paper or metal) and rubber plunger stopper; set on digital kitchen scale and tare (reset) the scale.
- Add ground coffee into the Aero press chamber on top of filter paper; shake lightly to level off (~25g). Set the timer for 30 seconds at the beginning of the brew cycle, so everything is timed correctly right from the start.
- After 30 seconds, flip over Aero press onto cup or carafe, so coffee begins to drain into chamber/device below. This should take about 1-2 minutes max.
- Once the coffee is in the chamber, set the timer for 40 seconds and start your timer on the digital scale. For a double shot, add another 50g of ground coffee to Aero press when it’s been draining for 20 seconds (so total weight = 100g [~3.53oz.]). Grind according to preference (recommendation: 18/18 setting on Baratza Virtuoso for Aero press brewing).
- When the 40-second mark has passed, dump the brewed coffee from the chamber back onto the digital scale and reset your timer for 1 minute; tare (reset) scale.
- Add 50g of ground coffee to the Aero press chamber, grind according to preference (recommendation: 18/18 setting on Baratza Virtuoso for Aero press brewing). Press coffee the same way you did in steps 3-5 using your 1-minute timer for everything, including initial press time. Enjoy espresso shots after letting them cool down for 30 seconds or so!
Advantages of Espresso Machine
There are many reasons why you might want to get an espresso machine.
- Espresso machines make it easier and faster than ordinary coffee pots or drip machines because they use compressed air and increased pressure to extract the most flavors from your beans. This allows you to pump out a single cup in under thirty seconds after pressing a single button.
- Another advantage is that with this increased speed and productivity, baristas can spend more time on quality and service rather than wasting time merely producing standard cups of coffee.
- This decreased output time also helps businesses keep customers satisfied, so they come back again instead of going elsewhere for their morning caffeine pick-me-up.
- If you do a lot of entertaining, an espresso machine might be a good idea to save time and energy when making coffee for guests. Espresso machines are perfect for both home and commercial purposes because they can produce quality caffeinated beverages quickly and efficiently with only the press of a button.
- Even if you don’t get money from selling caffeine-laden beverages, an espresso machine can still be advantageous because it helps keep employees happier by providing them with the caffeine that they need to keep working at total efficiency while still giving customers their favorite pick-me-up beverage that helps them get through the day just like everybody else.
- How can you get your espresso machine to produce the same quality drink every time?
You want to use about 16-18 g of coffee beans for a double shot of espresso. Tamp them down with 30 pounds of pressure, and run hot water through the group head until it comes out clean. You should be able to see the bottom of the basket or “gooseneck” when looking straight down.
- What is the proper grind setting for an espresso machine?
The coffee should look like sugar or magnificent sand. It should not look powdery or chunky. To achieve this ground level, try increasing or decreasing your grinder’s tamping pressure by one notch. If that doesn’t work, try changing the distance between teeth on your grinder.
- How often should you clean your espresso machine?
Cleaning your espresso machine daily is recommended by some but not all manufacturers. If it looks like the engine needs to be cleaned, go ahead and give it a quick rinse with hot water. Never use soap or strong chemicals as these may damage the inside of the machine. When you’re done, wipe away any standing water and let it air dry completely before turning it back on.
- Can espresso machines be used for other beverages besides coffee?
Espresso machines are versatile appliances that can be used to make many different types of beverages. One famous example is using an espresso maker to make authentic Mexican-style hot chocolate (add cocoa powder and sugar). Other beverages you can make include macchiato, caffe latte, café con Leche and more.