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Saturday, 26 June 2010 12:52

Types of Coffee

There are many different types of coffee available from various parts of the world. There are different types of roasts, cappuccinos, lattes and the best-selling instant. There are a few tips to remember when selecting your coffee.

caffe_latte Caffe Latte

The latte or cafe latte is one of the most popular coffees. It is, just like the cappuccino, an espresso based drink topped with milk. The difference between the cappuccino and the latte is mainly the amount of foam. Sometimes there is a difference in size, the latte is usually a slightly larger drink. The technique used for steaming the milk should be the same however.

An important thing to think about is the size of the cup. To achieve a good balance between milk and espresso you usually need a cup the size of 5 to 6 oz (150 to 180ml), but this is dependent on your espresso base. The best way to find out is to simply try. Usually you use a porcelain cup but some places have lattes in glasses. The porcelain cup keeps the drink warmer and is usually preferred by the consumer. Make sure that you pre-warm the cups, keep them on top of the espresso machine.

The most important ingredient to a perfect Latte is the espresso. Price is an important factor here, good espresso usually cost a bit more. Just make sure that your espresso is fresh and still hot before you pour the milk in to the cup. You will need an espresso that has the right characteristics to ‘break through’ the milk.


cappuccino Cappuccino

A cappuccino is an Italian coffee drink prepared with espresso, hot milk, and steamed-milk foam.

The name cappuccino comes from the Capuchin friars, possibly referring to the colour of their habits or to the aspect of their tonsured (white) heads, surrounded by a ring of brown hair.

A cappuccino is traditionally served in a porcelain cup, which has far better heat-retention characteristics than glass or paper. The foam on top of the cappuccino acts as an insulator and helps retain the heat of the liquid, allowing it to stay hot longer. The foam may optionally have powder (commonly cocoa, cinnamon or nutmeg) sprinkled on top.

A cappuccino is similar to a caffee latte in that both add frothed milk to espresso, but differs in two respects. Firstly, a cappuccino is traditionally prepared with much less steamed or textured milk than a latte – the latte is claimed to have been invented as simply a cappuccino with more milk. Secondly, cappuccinos feature a distinctive layer of foam on top, which is lesser or absent in lattes. There is some overlap in the usage: a wet cappuccino is virtually the same as a short latte with more foam.

 

caffe_macchiato Macchiato

Macchiato means "stained" in Italian. Traditionally it is made with one shot of espresso, and the small amount of added milk was the "stain." However, later the "mark" or "stain" came to refer to the foamed milk that was put on top to indicate the beverage has a little milk in it (usually about a teaspoon).

The Macchiato can be prepared either with steamed hot milk or cold milk. If hot, the espresso's name would become macchiato caldo (marked hot) or macchiato freddo (marked cold). The choice between "caldo" and "freddo" is usually a matter of personal tastes.

The other variant of the term, latte macchiato, conversely means "milk stained/marked (with espresso)", and indicates milk with just a little espresso in it (always less than in a caffee latte). However, in certain preparations (which differ from place to place), latte macchiato has not much difference in milk-to-espresso ratio when compared to the caffee latte;  caffee lattes are normally one-third espresso to two-thirds steamed milk.

There is no official rule on what exactly a Macchiato is so it’s a good idea to ask the barista how he/she makes it.


americano Americano or Filter Coffee

Probably both if you want to please your customers. It all comes down to personal preference. One thing is for sure: an Americano is not the same as a filter coffee.

An Americano is an Espresso diluted with water. You get the best flavour with 1 oz of Espresso and 4 to 5 oz of hot water (not boiling). Start preparing your Americano by filling your cup with hot water. This allow the hot water to cool a little whilst you are preparing the Espresso. Now pour the Espresso on top of the hot water. Pouring the Espresso on top of the water will give you the most crema and you avoid the chance of burning your Espresso. Usually served black, but milk can be added if desirable (hot or cold).

A filter coffee is usually made with a filter brewing machine. Gravity does the work here for you and there is no pressure used unlike with an Espresso. Hot water (not boiling) is running through a filter (filled with ground coffee) into a glass pot or vacuum flask. It is recommend to use about 60 grams of coffee per 1.5 litre of water. Use more or less coffee if you want a stronger or weaker brew. You can use a permanent filter for a different flavour.

The glass pot used for filter coffee is only good for about 20 minutes. Heating the coffee any longer will result in loss of flavours. The filter coffee that has been brewed in a flask is good for about 3 hours making it a much better option for most businesses.

Filter coffee is made from single origin coffees. An Espresso is made from a blend of coffee beans. The reason for this is that the espresso coffee machine extracts more flavours from the coffee and highlights the flavours (about 25% with an espress coffee machine, about 15% with a filter brewing machine). A Kenyan coffee for example will be lovely for a filter coffee, but it would be to acidic for an Espresso so you have to blend it. Filter coffees are therefore great for tasting single origin coffees and it’s great fun to try different coffees everyday.

Filter coffees have more depth and a larger range of flavours than an Americano. An Espresso is not designed to be diluted with a lot of water and the drink is simply an easier version of a filter coffee (convenience). It is possible to produce a filter coffee with an espresso machine. However, the ground coffee has to be a lot coarser than the Espresso grind and the group head needs to be set at the correct temperature for filter coffee.

Published in All about Coffee
Saturday, 26 June 2010 11:07

Latte Art

Latte art is a style of pouring steamed milk into a shot of espresso that creates a pattern or design on the surface of the resulting latte. It can also be created or embellished by simply “drawing” in the top layer of foam. Latte art is particularly difficult to create consistently, due to the demanding conditions required of both the espresso shot and milk.

The milk
You need cold and fresh milk. Most people prefer full fat milk for Latte Art but it is really up to you, if you use a right technique then it doesn’t make too much difference. Just make sure that the milk is fresh and straight out of the fridge. Do not expose it to heat or light before you steam it.

Latte Art_1

Never use the same milk again when you are working on Latte Art.

The jug
Use a stainless steel jug with a narrow spout. Make sure that the jug is cold and clean before use. Fill up the jug with enough milk for your cup and make sure that you have enough milk so you have time to texture the milk. Too less milk will cause the milk to heat up too quick so a little bit more milk is better. Do not worry about the wastage too much.

Thermometer
Use a thermometer that has a clip to attach to the jug. The thermometer should have a good size so you can easily read it. Make sure that the thermometer is adjusted right, you can do this by putting it in ice water and correcting the dial. Usually you can adjust the dial with a screw in the back. The best way to adjust your thermometer is to compare it with a digital probe. Do not place the thermometer in the dishwasher, the moisture will break your thermometer. It is also possible to judge the temperature of the milk by touch.

Steam Wand
Always make sure that you turn the steam on all the way. Purge the steam wand before use. This will clean it from any condensation. Do not turn the steam wand on before you insert it into the milk. Your steam should have a pressure of around 1 bar, the pressure is related to the temperature of the boiler. The more holes the steam tip has, the more steam power.

Latte Art_2

Espresso
The espresso is just as important as the milk. Make sure that the espresso is fresh and has a good thick and strong layer of crema. It becomes very difficult to create good Latte Art without good crema on your espresso.

Cup Size
It is probably easiest to use 1 oz of espresso in a 6-8 ounce cup. Use a cup that has a wide surface area to work with, usually a low cup with a large wide diameter.

Steaming Milk
Start with the steam wand inside the milk. Turn on the steam completely. Hold the jug with two hands. Slowly lower the jug until the tip of the steam wand breaches the surface of the milk. You should hear a sh-sh-sh sound (high chirping sound). Do this for only a few seconds, this is when you are forcing the bubbles in to the milk to create foam, it is called foaming or stretching. Be very careful when you lower the jug, you should not see any bubbles being formed. You should hear the foam being created but you should not see it. You only need to foam for a few seconds, do not make the mistake to foam too much. Do not foam over 40 degrees Celsius or 100 Fahrenheit.

Latte Art_3

Once you have enough foam insert the steam wand deeper into the milk. There is no need to move the jug up and down. You should have a whirlpool inside the jug, you are now texturing the milk. The milk is now twirling inside the jug and any bubbles that might be present will dissolve into the milk. Once you have reached about 60 to 65 degrees Celsius turn off the steam. Then take out the steam wand and clean it with a clean cloth.

Put the jug down with a slight tap on the work top. This will destroy any tiny bubbles that might have been visible on the surface. You should not have any more bubbles visible after this. If you do then you can gently tap the jug a few times on the counter to get rid of them. However, tapping the jug on the counter makes the foam thicker and is not advisable. If you foam and steam the milk with the right technique then you should not have to tap the jug on the counter.

Pour the milk as soon as possible. This is very important because the foam will start separating very quickly. Spin the milk around just before you pour to make sure that all the foam is mixed with the milk.

 

Pouring The Milk
We suggest that you steam the milk whilst the espresso is being brewed.

Start with the pour a little high. Once the cup is about half full lower the pour close to the crema and the foam should appear. Go from high to low and pour with a steady speed.

Latte Art_4

You should pour the milk as soon as possible. Hold the cup on it’s ear and slightly at an angle. Start pouring the milk slowly in to the crema. You do not want to pour to slowly, this will leave the foam behind in the jug. You also do not want to pour too quick because this will break the crema apart. Pour slowly in a few spots in the cup to break through the crema.

Start pouring the milk in to the back of the cup once the cup seems just more than half full. Now slowly but very steady move the pitcher from side to side. This is a wrist movement and should be done just slightly. The milk should not swing from side to side in the jug. Keep moving it side to side in one spot in the cup until you see the foam appearing. If you see this happening than you have cracked it! Once you see the foam break through the crema you can start pouring patterns.

Latte Art_5

Rosetta / Leaf
Move the jug side to side until you see the foam appearing on the surface. Keep moving the jug side to side until you see a pattern appear. Now slowly move the jug backwards whilst still moving it side to side. When you have reached the end of the cup move the jug in a quick straight line through the pattern.

Latte Art_6

 

 

 

Quick movements from side to side will create a rosetta with lots of leafs. Slow movements from side to side will create less and thick leaves.


Latte Art_7

 

 

Heart
Move the jug side to side in one spot in the cup. Keep doing this until you get a big circle of crema. Slightly move the jug forward just a bit. Then keep pouring the milk on the big spot of foam until the cup is almost full. Finally move the jug in a quick straight line forward to finish of your heart.



Published in All about Coffee
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