Coffee basics

Coffee Variety Catalog at World of Coffee Research

 

There are dozens of widely cultivated Arabica coffee varieties around the world, and each is unique in its performance and adaptation to local conditions. This catalog brings urgently needed information to coffee farmers to help them decide which coffee is best for their situation.

Arabica Coffee

 

Arabica coffee began spreading around the world in the mid-1700s. Historically, most coffees were descendant from Typica and Bourbon. In the mid-20th century, breeders began introducing “introgressed” varieties resistant to coffee leaf rust. More recently, genetically diverse F1 hybrids have been introduced.

 

Click on the green bubble to zoom in and explore coffee’s genetic groups.

ROAST LEVELS: A PRIMER at The Capitain’s Coffee

 

Illustrations of different roast stages and what the coffee would taste like… As it says there “Friends don’t let friends drink charcoal”.

The coffee in our store, we roast between City and City+ Roast (Medium) and for single origins we try to highlight the character of the coffee.

Coffee Beans by Rebeckah Burke

 

at University of Rochester, Department of Chemistry

one of the very few published papers about internal structure of roasted coffee beans:

All Espresso Drinks Explained – courtesy of European Coffee Trip

 

What’s the difference between popular espresso drinks like Cappuccino, Latte, Flat White or Cortado? How about all black coffee options based on the single or double espresso shot? Check all the coffee drinks side-by-side!

Timestamps:

0:00 Intro

0:58 Single Espresso

1:35 Double Espresso (Doppio)

1:55 Americano (Single espresso + 120-140ml water)

2:18 Lungo (Single espresso + water on side)

2:37 Filter coffee (no espresso!)

3:16 Cappuccino (Single espresso + 130-180ml coarse foamed milk in a 150-200ml cup)

3:46 Espresso Macchiato (Single espresso + 60-100ml coarse foamed milk in a 80-120ml cup)

4:07 Cortado/Piccolo (Single espresso + 80-100ml microfoam milk in a 100-120ml glass)

4:30 Flat White (Double espresso + 110-160ml microfoam milk in a 150-200ml cup)

4:54 Caffé Latte (Single espresso + 280ml microfoam milk in a 300ml cup)

5:25 All espresso drinks side-by-side

All Iced Coffee Drinks Explained – courtesy of European Coffee Trip

 

10 Ice Coffee drinks explaned – Rebel Bean recipes interpretation.

Timestamps:

0:00 Intro

0:30 Iced Espresso or Espresso on Ice (single espresso + Ice)

1:00 Shakerato (double espresso with a bit of sugar shaked with ice in a shaker)

1:38 Iced Cappuccino (200ml of foamed milk at 30-40C with ice and a single shot of espresso)

2:15 Iced Latte (same as Iced Cappucino but double the milk)

2:40 Frappe (single espresso, 100ml milk, 10ml simple syrup and ice, all blended and poured on ice)

3:20 Cappuccino Fredo (100ml of foamed milk in the blender on top of a double espresso on ice )

4:00 Cold Brew (250-300ml of cold brew coffee)

4:25 Nitro Cold Brew (300ml cold brew coffee infused with nitroigen served on ice)

5:00 Affogato (100g Vanilla Ice Cream and a single espresso)

5:25 Espresso Tonic (70-100ml of Tonic Water, Ice and a single espresso)

6:00 All ice coffee drinks side-by-side

Milk for Coffee – Science and Techniques

 

courtesy of Sunegros Coffee:

In this video, we cover basic barista science about milk, how to heat and texture milk to form a delicious base for drinks, and how to pour it to look pretty.

“Milk Science” Chapter 1 1:00

“Milk Steaming” Chapter 2 5:00

“Milk Pouring” Chapter 3 12:55

Tim Wendelboe Coffee Cup Tasting

11g/180g water per cup – steep 4min

  1. Grind 11g of coffee – use more than 1 coffee  and use cups – put the grounds in cups
  2. Pour 180g water in each cup (make sure all the grounds are getting wet)
  3. Wait 4min for coffee to brew
  4. Smell crust of each
  5. Stir 3 times on top of each coffee – and smell – when breaking crust smell is released
  6. Skim – Blow on each and take the foam off – rinse spoons between each cup (this part is bitter and skews the taste)
  7. Leave coffee to cool 12min (sediment needs to drop and they need to cool down)
  8. Ready for tasting – slurp with a spoon from each from the top
  9. Wait again 5-10min to cool – if it tastes the same when it is cooled down, it is good coffee, else it hides some defect

Tips: start with coffees that are very different allowing your taste to develop. Practice the slurping technique!