Bitterness-related metrics
α-acid and β-acid are key references for hop bitterness and flavour stability.
- α-acid drives primary bitterness potential
- β-acid relates to bitterness layering after oxidation
- Metrics should be interpreted with beer style and process
Aroma and freshness metrics
Essential oils, appearance, moisture, and storage condition affect freshness feel and aroma performance.
- Total oil and aroma profile
- Moisture and foreign matter
- Colour and storage temperature
Traceability records
Batch number, harvest date, processing date, and storage & transport records help review trial brews and procurement decisions.
- Harvest date
- Processing batch
- Cold-chain delivery records
Frequently Asked Questions
Clear answers for procurement and use cases — written for both brewers and search engines.
Which metrics should a hop COA focus on?
Common focus points: α-acid, β-acid, aroma profile, moisture, foreign matter, batch number, harvest date, and storage condition.
Are testing metrics enough on their own?
No. They should be combined with sample trials, beer style goals, storage, and actual use feedback.
Do fresh-lock products need testing?
Yes. Fresh-lock emphasises freshness preservation, but batch-level testing and trial feedback still confirm quality.
Next step
If you are evaluating sample hops, annual procurement, or specialty beer R&D, submit an inquiry with your volume, end use, delivery region, and timing.