DRINKS PT 2

Question 1

whats coffee

Answer 1

primarily water with added components extracted from the beans during brewinng

Question 2

what are the two coffee plants that account for 99% of commercial coffee crop

Answer 2

coffea arabica (arabica) and coffea robusta (robusta)

Question 3

what do flavor and quality of coffee depend on

Answer 3

region in which plant was grown

Question 4

what do coffee plants generate

Answer 4

many flowers that yield a fruit, which contains two seeds (coffee beans)

Question 5

what are coffee beans enclosed in

Answer 5

tough hull that needs removal

Question 6

what are the two methods to remove tough hull

Answer 6

dry methods (beans sun-dried) and wet methods (beans washed then machine hulled)

Question 7

what does roasting do to coffee

Answer 7

develops flavor, aroma and appearance because of many chemical and physical changes (goes from brown to green)

Question 8

what does roasting time determine

Answer 8

classification of light roast, dark roast, medium roast (dark roast for longest time)

Question 9

what happens to beans after roasting

Answer 9

grinding, which increases surface area

Question 10

what does grinding allow for

Answer 10

extraction of more compounds that will contribute to flavor, aroma, appearance

Question 11

whats decaffeuned coffee

Answer 11

caffeine extracted from beans using polar solvent; 10-20% US coffee decaf

Question 12

what are the aroma, taste, and stimulating qualities derived from

Answer 12

volatile substances and bitter substances

Question 13

what are volatile substances

Answer 13

roasting creates many; gives coffee the smell

Question 14

what are bitter subatnces

Answer 14

organic acids (cholorgenic acid) and pholyphenolic compounds (caffeine)

Question 15

what are methylxanthines

Answer 15

class of substances that stimulate the CS

Question 16

what are the methylxanthines in coffee

Answer 16

caffeine and theobromine

Question 17

what doe methylxannthines do to body

Answer 17

may increase alertness, enhance exercise performance, increase heart rate, increase metabolism

Question 18

what are the three things that the type of coffee depends on

Answer 18

variety of bean/blend; how beans have been processed; added ingredients

Question 19

describe arabica and robusta sensory qualty

Answer 19

arabica sensory > robusta

Question 20

what does blending coffee varieties help with

Answer 20

best traits of each beans to be expressed and complemented

Question 21

whats sumatran, java coffee good for

Answer 21

richness, body

Question 22

whats veenzualan coffee good for

Answer 22

sweetness

Question 23

whats Costa Rica coffee good for

Answer 23

acidity

Question 24

what are the five types of processing coffee

Answer 24

ground, instant, decaff, espresso, cold brew

Question 25

what happens if ground coffee is too fine or too course

Answer 25

too fine - bitter, too course - weak/flavorless

Question 26

describe decay coffee

Answer 26

sometimes very different from normal coffee, sometimes not very different

Question 27

describe espresso coffee

Answer 27

high pressure steam used to force water through ground coffee; very dark and strong

Question 28

describe cold brew coffee

Answer 28

coffee extracted in cold or room temp water, 12+ hours, select solubilization of compounds, less bitter substances (acids, caffeine)

Question 29

does ground coffee deteriorate faster than whole beans

Answer 29

yes

Question 30

what is coffee sold in and what maximizes freshnness

Answer 30

coffee sold in vacuum-packed containers; grinding daily maximizes freshness

Question 31

what does minor fat content do to beans

Answer 31

susceptible to rancidity, so minimize exposure to air or moisture

Question 32

how long can you store coffee beans in freezer

Answer 32

several months