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From the Estate
Coffee Brew Guide
Three generations of growing and processing knowledge — distilled into the variables that matter when you brew Coorg Arabica and Robusta at home. Grown at ~1,200m elevation, Pollibetta, Coorg.
The Science
Anatomy of a Perfect Cup
Four variables determine whether a cup is memorable or forgettable. Get these right and the rest follows.
Cherry → Bean
Understanding the journey from fruit to cup.
A coffee cherry contains two seeds (beans) surrounded by fruit pulp. After harvesting at Kynetra Estate, cherries are processed using one of three methods: Washed (wet) — pulp is removed before drying, producing a clean, bright cup; Natural (dry) — cherries dry whole in the sun, adding fruit sweetness; Honey process — partial pulp removal before drying, balancing sweetness and clarity.
Grind Size
The most critical variable most home brewers overlook.
Grind size determines extraction rate. Coarse grind (French Press, Cold Brew): slow extraction, full body. Medium grind (Pour-Over V60, AeroPress): balanced extraction, clarity and sweetness. Medium-fine (Espresso Moka Pot): fast extraction under pressure. Fine (Espresso machine): very fast, high-pressure extraction. Wrong grind = over- or under-extraction regardless of other variables.
Water Temperature
Heat controls which compounds extract — and in what order.
Specialty Arabica from Coorg extracts best at 90–93°C. Water above 96°C over-extracts bitter compounds fast. Cold Brew uses cold water intentionally — 12–16 hours replaces heat. South Indian Filter uses near-boiling water with a slow gravity drip. AeroPress is forgiving at 85–90°C, producing a rounder cup. Never use actively boiling water on light roasts — the delicate floral notes vanish.
Roast Level
Roast transforms green bean chemistry into flavour.
Light roast (high acidity, floral, fruit notes — best for pour-over) preserves the origin character of Coorg Arabica. Medium roast (balanced, caramel, nuts) suits filter and AeroPress. Medium-dark roast (cocoa, low acidity) works well for South Indian Filter with milk. Dark and Espresso roasts produce bold, smoky cups suited to high-milk drinks. Kynetra Estate's S795 and Cauvery varietals shine at light-to-medium roast.
Comparison
Brew Methods at a Glance
Five ways to brew our coffees — parameters side by side so you can choose the method that fits your mood, roast level, and time.
| Method | Temp | Time | Milk? | Do | Don't |
|---|---|---|---|---|---|
| South Indian Filter | 98°C | 14 min | Yes | Add equal parts hot milk to the decoction for a classic South Indian kaapi. | Don't skip milk stage |
| Pour-Over V60 | 92°C | 4 min | No | Best drunk black to appreciate the clarity and brightness of single-origin Arabica. | Don't add milk |
| French Press | 92°C | 4 min | No | Pour immediately after pressing — leaving coffee in the French press continues extraction and adds bitterness. | Don't add milk |
| AeroPress | 85°C | 2 min | No | The AeroPress produces a clean, rich concentrate — dilute to taste or drink as a short espresso-style shot. | Don't add milk |
| Cold Brew | 20°C | 780 min | No | Makes a concentrate — dilute 1:1 with water or milk before serving over ice. | Don't add milk |
By Brew Method
Brewing Guidance by Method
South Indian Filter
Do
Use medium-dark grind. Fill upper chamber, tamp lightly, add near-boiling water. Let decoction drip slowly. Mix 1:1 decoction to hot milk (or 1:2 for mild). Adding chicory (10–20%) is traditional.
Don't
Don't rush the drip — slow gravity extraction is the method. Don't use fine espresso grind, it clogs the filter.
Interactive
Calculate Your Brew
Select method and cups — get exact quantities.
Brew Calculator
Select a brew style and number of cups — we’ll give you exact quantities.
Full-fat milk: 300ml — add after initial water steep. Total liquid per cup ≈ 270ml.
South Indian Filter — Method
Add equal parts hot milk to the decoction for a classic South Indian kaapi.
Avoid These
Six Common Mistakes
Water above 96°C — bitter over-extraction
Let boiled water cool 30–60 seconds in an open vessel before pouring. A kitchen thermometer removes all guesswork. Target 90–93°C for specialty Arabica.
Grind too fine for your brew method
Each method has an optimal grind size. A fine espresso grind in a French Press produces a bitter, muddy cup. Match grind size to method — it is the single biggest lever after bean quality.
Stale beans — flat, cardboard taste
Coffee peaks 7–21 days after roast. Always buy freshly roasted beans and check the roast date (not a "best before" date). Pre-ground coffee goes stale within hours of grinding.
Skipping the bloom / pre-wet
Fresh beans release CO₂ that repels water and causes uneven extraction. For pour-over, bloom with 2× coffee weight in water for 30 seconds before the main pour. AeroPress and French Press benefit too.
Wrong grind size for your method
Under-extracted (sour, thin) = grind finer or steep longer. Over-extracted (bitter, dry) = grind coarser or reduce time. Always adjust one variable at a time to diagnose.
Storing beans in the wrong container
Store whole beans in an airtight, opaque container at room temperature. Grind only what you need immediately before brewing. Never refrigerate — condensation destroys the aromatics.
Storage
Keep Your Coffee Fresh
Coffee is not wine — it does not improve with age. Roasted beans peak at 7–21 days, then slowly decline.
Airtight, opaque container
A tin or ceramic canister with a tight lid. Zip-lock is acceptable short-term; paper bags with one-way valves are ideal for the first week.
Dark storage
UV light breaks down volatile aromatic compounds. A cupboard shelf beats a glass jar on the counter — even for beautiful display tins.
Room temperature
Never refrigerate whole beans. Temperature fluctuation causes condensation inside the bag, accelerating staleness and muting flavour.
Grind just before brewing
Pre-ground coffee loses 60% of its volatile aromatics within 15 minutes. Buy whole beans and grind only what you need immediately before brewing.