We follow the following steps to measure beer colour using the European Brewery Convention (EBC) method:
1. Sample Preparation: ensure you send us a clear beer sample, ensuring it's free of particles.
2. Dilution: depending on colour intensity, we dilute the sample with distilled water at ratios of 1:1 or 1:4.
3. Spectrophotometry:we measure the absorbance at 430 nm using a spectrophotometer.
4. Calculation: the EBC value is calculated using the formula: EBC = (A × dilution factor) × 25, where A is the absorbance.
5. Result Interpretation: higher EBC values indicate darker beers.
This method provides a standardised way to assess beer colour intensity.