Coffee Brewing Guide


Luz Coffee

Brewing Guide

Elevated Coffee Rituals at Home 

This guide outlines the core variables that influence coffee flavor and extraction. When grind, ratio, temperature, and method are balanced, coffee becomes smoother, richer, and more expressive.

Use this page as a refined reference for brewing with more confidence, clarity, and consistency.

Core Brewing Variables

Coffee type
Grind size
Water quality
Water temperature
Brew ratio
Brewing time
Brewing method
Freshness

Step-by-Step

1

Choose Your Coffee

Whole bean coffee preserves aroma and flavor longer than pre-ground coffee. Grinding immediately before brewing creates a cleaner, more expressive cup.

Light Roast Bright, floral, fruit-forward
Medium Roast Balanced, smooth, versatile
Dark Roast Bold body, chocolate or smoky depth
2

Match Grind Size to Brewing Method

Grind size controls extraction speed, body, and balance. Matching the correct grind to your brew method is one of the most important steps in making better coffee.

Brew Method Grind Size Texture
French Press Coarse Sea salt
Cold Brew Extra coarse Cracked pepper
Drip Coffee Maker Medium Sand
Pour-Over Medium-fine Table salt
AeroPress Fine-medium Slightly powdery
Espresso Fine Powdered sugar

Bitter coffee often means the grind is too fine.

Weak or sour coffee often means the grind is too coarse.

3

Use a Balanced Coffee-to-Water Ratio

A consistent ratio creates more predictable, balanced results. A strong starting point for most brewing methods is:

1:11 
1 gram coffee for every 11 mL of water

Example: 27 grams coffee to 300 grams (or mL) water. Use slightly more coffee for a stronger cup, or more water for a lighter one.

4

Use Clean, Filtered Water

Coffee is primarily water, so water quality directly affects flavor. Clean, balanced water produces a clearer, more refined cup.

Best Choice Filtered drinking water
Avoid Distilled water
Avoid Strongly chlorinated tap water
5

Control Water Temperature

Water that is too hot can over-extract and create bitterness. Water that is too cool can leave coffee tasting flat or sour.

185-203°F
85–95°C

Practical method: bring water to a boil, then let it rest for 30–60 seconds before brewing.

6

Follow Method-Specific Brew Times

Each brewing style has an ideal extraction window. Time affects body, clarity, sweetness, and intensity.

Method Brew Time
Espresso 25–30 seconds
Pour-Over 2–3 minutes
Drip Machine 4–6 minutes
French Press 5-7 minutes
AeroPress 1–2 minutes
Cold Brew 12–18 hours

Longer brewing generally increases body and intensity. Shorter brewing tends to create brighter acidity and lighter extraction.

7

Brewing Method Guidance

Drip Coffee Maker Use a medium grind and a 1:16 ratio. Rinse paper filters first. Clean the machine regularly for better flavor clarity.
Pour-Over Use a medium-fine grind. Bloom with a small pour for 30 seconds, then continue slowly in circular motions. Total brew time is about 3 minutes.
French Press Use a coarse grind and steep for 4 minutes. Stir gently before pressing for a rich, full-bodied cup.
Espresso Machine Use a fine grind and consistent tamp pressure. Aim for a smooth extraction between 25 and 30 seconds.
Cold Brew Use an extra coarse grind. Steep in cold water for 12–18 hours, then dilute to taste.

Flavor Adjustment Guide

If coffee tastes bitter Grind coarser or reduce brew time
If coffee tastes sour Grind finer or increase brew time
If coffee tastes weak Increase the coffee dose
If coffee tastes too strong Add water or reduce the dose

Freshness Guidelines

Store coffee in an airtight container away from light, heat, and moisture.

Avoid refrigeration, which can introduce condensation and compromise flavor.

For the best cup, enjoy coffee within 7–28 days after roast.

The Brewing Philosophy

Coffee brewing is both technical and personal. Use these guidelines as a foundation, then refine according to your taste, equipment, and daily ritual.

The goal is not perfection. The goal is a calm, intentional coffee experience worth returning to.