1. What is Original Gravity (OG)?

Original Gravity (OG) is a measurement used in brewing to determine the amount of fermentable sugars present in the wort before fermentation. It's a key indicator of the potential alcohol content in the finished beer.

2. How Does the Calculator Work?

The calculator uses the OG formula:

Where:

• \( Brix \) — Degrees Brix measurement

Explanation: This formula converts Brix measurements to specific gravity, which is the standard measurement used in brewing to estimate the sugar content in wort.

3. Importance of OG Calculation

Details: Calculating Original Gravity is essential for brewers to predict alcohol content, determine fermentation efficiency, and ensure consistency between batches.

4. Using the Calculator

Tips: Enter the Brix measurement in degrees. The value must be greater than 0 for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between Brix and specific gravity?
A: Brix measures the sugar content as a percentage, while specific gravity measures the density of liquid compared to water. Both are used to estimate fermentable sugar content.

Q2: What is a typical OG range for different beer styles?
A: Light lagers: 1.038-1.050, IPAs: 1.060-1.070, Imperial Stouts: 1.080-1.120. The OG varies significantly by beer style.

Q3: How does temperature affect Brix measurements?
A: Brix measurements are temperature-dependent. Most refractometers are calibrated for 20°C (68°F). Temperature corrections may be needed for accurate readings.

Q4: Can I use this calculator for finished beer?
A: This formula is specifically designed for wort before fermentation. For finished beer, different calculations are needed to account for alcohol content.

Q5: How accurate is this conversion formula?
A: This formula provides a good estimate for homebrewing purposes, but for professional precision, specific gravity should be measured directly with a hydrometer.