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Coffee

Coffee Beans: Origins, Varieties, and Flavor Profiles

A selection of coffee beans and varieties in small bowls with simple labels (Arabica, Robusta, heirloom), soft natural light, realistic macro photography

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
Note
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

Tip
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

Note
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!