What are the two types of coffee?
Arabica & Robusta
What is the definition of refreshments?
Alkaloid-containing materials that can stimulate heart work
What is the basic chemical properties in coffee?
least one nitrogen atom in a heterocyclic ring
What are alkaloids in refreshments?
Theobromine & Caffeine
True or false arabica taste better compared to robusta? Why?
True, because robusta tends to be more acidic
What are the main differences between robusta and arabica coffee?
Where do Mocha coffee from?
Yemen
Where do Blue bourbon coffee from ?
Rwanda
Where do Barako coffee from?
Philippines
Where do Maraba Coffee from?
Rwanda
Where do Kona coffee from?
Kona
State three systems after harvesting!
1. Dry processing ( natural coffees ) - drying the whole cherry
2. Wet processing ( Washed coffees ) - remove the pulp
3. Intermediate semi-dry (pulped natural) - pulping
How to identify the quality of coffee beans?
based on size, colour and brewing quality (coffee cupping)
Without this process, the flavour from the coffee won't get out
Roasting
What reaction occurs during roasting process?
Maillard reaction (reaction between carbo + protein)
What is extracted during Maillard reaction?
Oil and fats
What indicates complete roasting?
Crack sound
What is purpose of grinding coffee?
- create more surface area
- increase flavor
- affects the brewing time
- storage stability
Coffees strength and flavor depends on?
- ratio of coffee to water
- particle size of ground coffee
- temperature of water
- mixing rate
- range of time
Extraction method in coffee is called?
Brewing
What are the chemical composition in coffee beans?
Caffeine & Trigonelline
What is the function of carbohydrates in coffee composition?
mouthfeel and give body to the coffee
True or false tea has more antioxidants compared to coffee?
False
True or false tea has more caffeine compared to coffee
True
What are the uses of coffee?
- stimulant
- anti-diabetic
- antineoplastic
- laxative (to washed out our toxins)
- memory enhancer
What are the weakness of coffee?
- can cause 'coffee jitters'
- stained teeth
- increase the risk of stillbirths (keguguran)
- reduce fertility in women
Types of coffee products
- RTD coffee
- luwak coffee
- decaffeinated
- Instant coffee