Cold brew extracts coffee over many hours with cool water. Clearly record whether the batch is concentrate or ready to drink.
What to evaluate
Keep the decision connected to the actual coffee, brewer and serving goal.
- Use clean equipment
- Prefer controlled refrigeration
- Avoid overly fine grind
- Label concentrate and dilution
A repeatable workflow
Use one baseline, then change only what the evidence supports.
- Choose the recipe type
- Combine coffee and water
- Steep consistently
- Filter, date and refrigerate
Common mistakes
These errors make comparisons unreliable or create avoidable problems.
- Leaving dairy at room temperature
- Forgetting concentrate strength
- Squeezing filters
- Keeping indefinitely
Use the dilution calculator.