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Coffee Beans: Origins, Varieties, and Flavor Profiles

Understanding Coffee Beans

Coffee flavor begins at origin—the combination of varietal, terroir, processing, and roasting creates the final cup. This guide explores coffee-growing regions, flavor characteristics, and how to choose beans for your taste.

Coffee Species

Arabica (Coffee arabica)

Market Share: 60-70% of world production

Characteristics:

  • Complex, nuanced flavors
  • Higher acidity, bright notes
  • Wider range of flavor profiles
  • Sweeter, more delicate
  • Grown at higher altitudes (3,000-6,500 ft)
  • More expensive

Flavor Range:

  • Fruity, floral, winey
  • Chocolatey, nutty
  • Sweet, balanced acidity

Common Varieties:

  • Typica (original, delicate, complex)
  • Bourbon (sweet, balanced, full body)
  • Caturra (bright acidity, medium body)
  • Geisha/Gesha (floral, tea-like, exotic fruits)
  • SL28/SL34 (fruity, winey, vibrant)

Robusta (Coffea canephora)

Market Share: 30-40% of world production

Characteristics:

  • Strong, bold, bitter
  • Low acidity
  • Higher caffeine (2x Arabica)
  • Full body, earthy
  • Grown at lower altitudes (0-2,000 ft)
  • Cheaper, hardy plant
  • Disease resistant

Flavor Profile:

  • Earthy, woody, grainy
  • Burnt rubber, peanutty
  • Bitter, astringent

Best Uses:

  • Espresso blends (adds crema and body)
  • Italian-style coffee
  • Instant coffee
  • Commercial blends
Specialty Coffee = Arabica
99% of specialty coffee (scored 80+ points) is Arabica. Robusta is mainly for commercial coffee, though some high-quality Robusta exists for espresso blends.

Coffee-Growing Regions

The Coffee Belt

Coffee grows in the “Bean Belt”—tropical and subtropical regions between Tropics of Cancer and Capricorn.

Key Requirements:

  • Altitude: 2,000-6,500 ft for Arabica
  • Temperature: 60-70°F average
  • Rainfall: 60-80 inches/year
  • Rich, volcanic soil
  • Shade (often under canopy)

African Coffees

Ethiopia (Birthplace of Coffee)

Regions: Yirgacheffe, Sidamo, Harrar

Flavor Profile:

  • Bright, wine-like acidity
  • Blueberry, strawberry, floral notes
  • Tea-like body (light-medium)
  • Bergamot, jasmine aromas

Processing: Washed (clean, bright) or Natural (fruity, funky)

Best For: Light to medium roasts, pour over, showcasing origin

Ethiopia Yirgacheffe (Example):

  • Lemon, floral, bergamot
  • Light body, vibrant acidity
  • Clean, complex
  • Often naturally processed

Kenya

Regions: Nyeri, Kirinyaga, Kiambu

Flavor Profile:

  • Intense acidity (tomato, black currant)
  • Winey, juicy
  • Grapefruit, blackcurrant, savory
  • Full body despite bright acidity

Processing: Washed (double fermentation method)

Varietals: SL28, SL34 (known for vibrant flavors)

Best For: Light-medium roasts, pour over, cold brew


Rwanda & Burundi

Similar to Kenya:

  • Bright acidity
  • Fruity, floral
  • Often red berries, orange
  • Clean, sweet

Growing Recognition: Improving quality, excellent value

Central & South American Coffees

Colombia

Regions: Huila, Nariño, Antioquia, Tolima

Flavor Profile:

  • Balanced, approachable
  • Caramel, nuts, chocolate
  • Mild acidity, medium body
  • Clean, consistent

Processing: Mostly washed

Best For: All-purpose coffee, medium roasts, reliable quality


Brazil

World’s Largest Producer: 40% of global coffee

Regions: Minas Gerais, São Paulo, Bahia

Flavor Profile:

  • Low acidity
  • Chocolatey, nutty
  • Heavy body, creamy
  • Cocoa, peanut, caramel

Processing: Natural (pulped natural common)

Best For: Espresso blends, medium-dark roasts, milk drinks


Costa Rica

Regions: Tarrazú, West Valley, Central Valley

Flavor Profile:

  • Bright, clean acidity
  • Honey, citrus, apple
  • Medium body
  • Well-balanced

Processing: Washed, honey processed

Quality Focus: High standards, good infrastructure

Best For: Light-medium roasts, pour over


Guatemala

Regions: Antigua, Huehuetenango, Atitlán

Flavor Profile:

  • Full body, rich
  • Chocolate, spice, smoky
  • Balanced acidity
  • Complex, layered

Processing: Washed

Growing Conditions: Volcanic soil, high altitude

Best For: Medium roasts, French press


Panama

Famous For: Geisha variety (exotic, expensive)

Geisha Flavor:

  • Floral (jasmine, hibiscus)
  • Tropical fruits (mango, papaya)
  • Tea-like body
  • Delicate, complex

Price: $50-150+ per pound (rare lots auction for $1,000+/lb)

Asian & Pacific Coffees

Indonesia

Regions: Sumatra, Java, Sulawesi

Flavor Profile:

  • Earthy, herbal
  • Low acidity
  • Full, syrupy body
  • Tobacco, cedar, dark chocolate

Processing: Wet-hulled (Giling Basah) - unique to Indonesia

Sumatra Mandheling:

  • Earthy, spicy
  • Herbal, forest floor
  • Full body, low acidity

Java:

  • Cleaner than Sumatra
  • Spicy, earthy
  • Medium body

Best For: Dark roasts, French press, those who dislike acidity


Vietnam

World’s 2nd Largest Producer: Mostly Robusta

Flavor: Strong, bitter, earthy (Robusta characteristics)

Traditional Drink: Ca phe sua da (iced coffee with condensed milk)


Papua New Guinea

Flavor Profile:

  • Fruity, complex
  • Medium body, balanced acidity
  • Similar to Central American or East African

Processing: Washed

Quality: Variable, but good estates produce excellent coffee


Hawaii (Kona)

Only U.S. Commercial Coffee Production

Flavor Profile:

  • Smooth, mild
  • Nutty, buttery
  • Low acidity
  • Medium body

Price: Expensive ($40-60/lb) due to labor costs

Authenticity: Look for “100% Kona” (many blends are only 10% Kona)

Flavor Profiles by Region

Processing Methods

How coffee is processed after harvest dramatically affects flavor.

Washed (Wet) Processing

Process:

  1. Cherry skin removed (depulping)
  2. Beans ferment in water 12-48 hours (removes mucilage)
  3. Beans washed clean
  4. Dried on patios or raised beds

Flavor Impact:

  • Clean, bright, complex
  • Highlights origin characteristics
  • Higher acidity
  • Clarity of flavor

Common In: Central America, East Africa, Colombia

Natural (Dry) Processing

Process:

  1. Whole cherries dried in sun (intact fruit)
  2. Takes 3-4 weeks
  3. Fruit removed after drying

Flavor Impact:

  • Fruity, wine-like, funky
  • Heavier body
  • Lower acidity
  • Berry flavors, fermented notes

Common In: Ethiopia, Brazil, Yemen

Risk: Uneven drying can cause defects

Honey Processing (Pulped Natural)

Process:

  1. Skin removed but mucilage (honey) left on bean
  2. Dried with sticky layer intact
  3. Variations: White, yellow, red, black honey (amount of mucilage left)

Flavor Impact:

  • Between washed and natural
  • Sweet, fruity
  • Good body
  • Balanced

Common In: Costa Rica, Brazil, Central America

Wet-Hulled (Giling Basah)

Process:

  1. Unique to Indonesia
  2. Parchment removed while beans still wet (12% moisture vs. 10-11%)
  3. Dried after hulling

Flavor Impact:

  • Earthy, herbal, spicy
  • Full body, low acidity
  • Distinctive Indonesian profile

Common In: Sumatra, Sulawesi

Processing & Roast Level
Natural processed beans often shine in light-medium roasts (preserve fruity notes). Washed coffees are more versatile across roast levels.

Roast Levels

Light Roast

Appearance: Light brown, no oil on surface Internal Temp: 356-401°F Flavor: Origin characteristics dominate, bright acidity, fruity/floral Body: Light to medium Caffeine: Slightly higher (less roasting = more caffeine preserved)

Best Beans: Ethiopian, Kenyan, specialty single-origins

Brewing: Pour over, V60, to highlight complexity

Medium Roast

Appearance: Medium brown, no oil Internal Temp: 410-428°F Flavor: Balanced, sweet, caramelized sugars, moderate acidity Body: Medium Caffeine: Standard

Best Beans: Colombian, Costa Rican, most single-origins

Brewing: Versatile - drip, pour over, French press

Medium-Dark Roast

Appearance: Dark brown, slight oil sheen Internal Temp: 437-446°F Flavor: Bittersweet, caramel, chocolate, lower acidity Body: Full Caffeine: Slightly lower

Best Beans: Brazilian, Guatemalan, blends

Brewing: French press, espresso

Dark Roast

Appearance: Very dark brown to black, oily surface Internal Temp: 464-482°F Flavor: Roast flavors dominate (smoky, charred, bitter), low acidity Body: Full, thin (oils burned off) Caffeine: Lowest

Best Beans: Indonesian, Brazilian, lower-grade beans (roast hides defects)

Brewing: Espresso, French press, moka pot

Roast Freshness Matters
Coffee peaks 7-21 days after roasting. Buy from roasters with roast dates (not “best by”). Grocery store coffee is often months old.

Choosing Coffee Beans

Based on Brewing Method

Pour Over:

  • Light to medium roast
  • Bright, complex origins (Ethiopia, Kenya, Costa Rica)
  • Washed processing

French Press:

  • Medium to medium-dark roast
  • Full body origins (Brazil, Guatemala, Sumatra)
  • Natural or honey processing

Espresso:

  • Medium to dark roast
  • Blend of origins for balance
  • Brazilian base + Ethiopian brightness + Sumatra body (classic blend)

Cold Brew:

  • Medium to dark roast
  • Chocolate/nutty profiles (Brazil, Colombia)
  • Natural processing

Based on Taste Preference

I Like Bright, Fruity Coffee:

  • Ethiopian Yirgacheffe (natural)
  • Kenyan AA
  • Light roast
  • Pour over brewing

I Like Smooth, Chocolatey Coffee:

  • Colombian Supremo
  • Brazilian Santos
  • Medium roast
  • Drip or French press

I Like Bold, Strong Coffee:

  • Sumatra Mandheling
  • French Roast blend
  • Dark roast
  • French press or espresso

I Like Balanced, Approachable Coffee:

  • Costa Rican Tarrazú
  • Guatemalan Antigua
  • Medium roast
  • Any brewing method

Single-Origin vs. Blend

Single-Origin

What It Is: Beans from one location (country, region, or even single farm)

Pros:

  • Showcases unique terroir
  • Distinct flavor profile
  • Traceability
  • Exciting and varied

Cons:

  • Can be polarizing (very acidic or earthy)
  • More expensive
  • Seasonal availability

Best For: Exploring, light roasts, pour over

Blend

What It Is: Beans from multiple origins combined

Pros:

  • Balanced, approachable
  • Consistent year-round
  • Often cheaper
  • Each origin contributes specific characteristics

Cons:

  • Less distinctive
  • Can hide low-quality beans

Classic Espresso Blend:

  • 60% Brazilian (body, chocolate, base)
  • 30% Colombian/Central American (balance, sweetness)
  • 10% Ethiopian/Kenyan (brightness, complexity)

Best For: Espresso, everyday drinking, milk drinks

Coffee Grading & Quality

Specialty Coffee Association (SCA) Scoring

100-Point Scale:

  • 90-100: Outstanding, rare
  • 85-89: Excellent, premium specialty
  • 80-84: Very good, specialty grade
  • <80: Below specialty, commodity coffee

Criteria:

  • Aroma, flavor, aftertaste
  • Acidity, body, balance
  • Uniformity, clean cup, sweetness
  • Defects (none for specialty)

Common Grading Terms

AA, AB, PB (Kenya):

  • AA: Largest bean size, often highest quality
  • AB: Medium bean size
  • PB: Peaberry (single round bean, ~5% of crop, prized)

Supremo, Excelso (Colombia):

  • Supremo: Screen size 17+ (largest)
  • Excelso: Screen size 15-16

SHB, SHG (Central America):

  • Strictly Hard Bean / Strictly High Grown
  • Grown above 4,000 ft
  • Denser beans, better quality

Grade 1 (Ethiopia):

  • Highest quality, fewest defects
  • Specialty grade

Note: Size ≠ quality always, but often correlates

Buying & Storing Coffee

Where to Buy

Best:

  • Local specialty roaster (fresh, knowledgeable staff)
  • Online specialty roasters (Blue Bottle, Counter Culture, Intelligentsia)
  • Directly from farms (if available)

Avoid:

  • Grocery store (usually stale, months old)
  • Beans in clear containers (light damages coffee)
  • Pre-ground (goes stale in days)

What to Look For

Roast Date:

  • Must be listed
  • Buy within 2 weeks of roast date
  • Use within 4-6 weeks

Origin Information:

  • Country minimum
  • Region/farm better
  • Varietal, altitude, processing (best)

Price:

  • Specialty coffee: $12-20/lb typical
  • Premium single-origin: $20-30/lb
  • Rare lots (Geisha, competition): $50-200+/lb
  • Cheap coffee (<$8/lb): Low quality or stale

How to Store

Golden Rules:

  • Airtight container
  • Cool, dark place
  • Away from light, heat, moisture, air

Best Containers:

  • Opaque, airtight canister (Airscape, Fellow Atmos)
  • Original bag with valve (if resealable)
  • Mason jar (if stored in dark cabinet)

Don’t:

  • Freeze or refrigerate (causes condensation, off-flavors)
  • Keep in clear container (light degrades)
  • Store near stove or in sun

Shelf Life:

  • Whole bean: 4-6 weeks peak, drinkable 2-3 months
  • Ground: 1-2 weeks peak, stale after 1 month
Test your coffee bean knowledge.

Next Steps


Understanding coffee beans transforms your daily cup from routine to ritual. Each origin tells a story—from Ethiopian highlands to Brazilian plantations, from cherry to cup. Taste, explore, and discover your favorites!