Mr Calcu | Brew smarter, not stronger—calculate your perfect coffee strength in seconds for richer flavor and better mornings.

Calculate and fine-tune your coffee brew strength with precision. Maximize flavor and elevate your daily ritual using our expert-built estimator.

Coffee Brew Strength Estimator

Metric (g)

Imperial (oz)

Coffee Amount (g)

Water Amount (g)

Serving Size (ml)

Brewing Method

Coffee-to-Water Ratio (1:x)

1:1 1:20

Coffee Brew Strength Estimator Guidelines

You’re just a few tweaks away from café-quality coffee at home.

Usage Guidelines

Use a digital scale for both coffee and water in grams.
Select your brewing method to anticipate extraction efficiency.
Stay within the 1.15%–1.35% TDS range for optimal flavor.
Finer grinds yield stronger brews but may over-extract.
Adjust water volume or coffee mass to fine-tune your result.
Account for different extraction profiles based on method and roast level.

Coffee Brew Strength Estimator Description

Understanding Brew Strength

Coffee brew strength measures how concentrated your coffee is, typically expressed as a percentage of Total Dissolved Solids (TDS).

Key Factors

Coffee-to-water ratio: Defines concentration of solids.
Grind size: Affects extraction rate.
Brewing time & temperature: Influences how much is extracted.
Method: Immersion and percolation techniques yield different strengths.

Recommended Strength Range

The Specialty Coffee Association (SCA) suggests a target range of 1.15% to 1.35% TDS for ideal balance between flavor clarity and body.

Mathematical Formula

Strength (%) = (Mass of dissolved solids in brewed coffee) / (Total brew mass) × 100

With assumed extraction efficiency (E):

Strength (%) ≈ (Coffee dose in g) / (Water in g) × E × 100

Typical E = 18%–22%

Pro Tip: Always measure in grams for both coffee and water. Volume can lead to inconsistent results.

Real-World Scenarios

Case Study 1: V60 Pour-Over

20g coffee
300g water
20% extraction
Result: 1.33% brew strength (ideal)

Case Study 2: French Press

25g coffee
400g water
18% extraction
Result: 1.13% brew strength (slightly weak)

Start brewing like a barista—use this tool to hit your ideal strength every time and taste the difference in every cup.

Example Calculation

Coffee (g)	Water (g)	Assumed Extraction (%)	Brew Strength (%)
15	225	20	1.33
20	300	19	1.27
25	400	18	1.13
18	270	22	1.47
12	250	17	0.82
30	300	20	2.00
10	500	18	0.36

Frequently Asked Questions

Brew strength is the concentration of coffee solubles in the final beverage, measured as Total Dissolved Solids (TDS) percentage.

By adjusting your coffee-to-water ratio, grind size, brew time, and understanding your brewing method's extraction efficiency. Aim for 1.15%–1.35% TDS.

Your coffee may taste overly intense, bitter, or muddy. Reduce the coffee dose or increase water slightly, and check for over-extraction.

You may experience a watery or sour cup. Try increasing coffee dosage or using a finer grind to boost extraction.

Extraction determines how much of the coffee's soluble compounds are dissolved. Brew strength depends on both extraction and coffee ratio.

Using volume (ml or cups) introduces error due to coffee density and water absorption. Use grams for better accuracy and consistency.

Finer grinds extract faster and typically yield higher brew strength. Coarser grinds may under-extract if not brewed longer.

Brewing below 90°C can result in low extraction, while over 96°C may cause excessive bitterness. Stay within 90–96°C for ideal strength.

Use this calculator with your measured coffee and water values, and estimate extraction percentage based on your brew method and grind.

Mr Calcu | Brew smarter, not stronger—calculate your perfect coffee strength in seconds for richer flavor and better mornings.

Coffee Brew Strength Estimator

Coffee Brew Strength Estimator Guidelines

Usage Guidelines

Coffee Brew Strength Estimator Description

Understanding Brew Strength

Key Factors

Recommended Strength Range

Mathematical Formula

Real-World Scenarios

Case Study 1: V60 Pour-Over

Case Study 2: French Press

Example Calculation

Frequently Asked Questions

What is brew strength?

How do I achieve perfect brew strength?

What happens if my brew strength is too high?

What if my brew strength is too low?

Why is extraction percentage important?

Can I use volume instead of grams?

How does grind size affect strength?

What’s the role of brewing temperature?

How can I measure coffee strength at home?

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