Production Cupping¶

Production cupping is the daily quality control practice of systematically evaluating roasted coffee batches to ensure consistency, identify defects, and maintain quality standards. Unlike formal ../SCA Cupping Protocol sessions, production cupping is streamlined for efficiency while maintaining rigorous standards.

Purpose¶

Primary Objectives: - Verify batch quality before release - Ensure consistency across batches - Catch defects or roast issues - Maintain brand standards - Provide roaster feedback

Business Impact: - Prevents bad coffee from reaching customers - Maintains reputation - Reduces waste and returns - Improves roasting consistency - Supports continuous improvement

Daily Practice¶

Frequency¶

Typical Schedule: - Every roast batch (ideal) - End of each roast day (minimum) - Before packaging/shipping - Random spot checks - Weekly comprehensive review

Sample Selection: - Each roasted SKU - Beginning, middle, end of day - Any questionable batches - New profiles - Customer complaint investigation

Streamlined Protocol¶

Differences from Formal Cupping: - Fewer cups per sample (3 vs. 5) - Faster evaluation - Abbreviated notes - Pass/fail plus severity - Immediate feedback to roaster

Maintained Standards: - Same water temperature (93°C) - Same brew ratio (1:18.18) - Same grind size - Same evaluation timing - Same cleanliness protocols

Quality Control Checks¶

Roast Evaluation¶

Development Assessment: - Proper roast level achieved? - Even colour throughout? - Appropriate development time? - Profile executed correctly? - Tipping, scorching, or other defects?

Visual Inspection: - Bean colour (Agtron reading if available) - Uniformity across batch - Surface characteristics - Quakers identified - Foreign matter check

Sensory Evaluation¶

Cup Quality: - Clean cup (any defects?) - Expected flavour profile present? - Appropriate acidity? - Good body and balance? - Pleasant aftertaste?

Consistency: - Matches previous batches? - Meets profile target? - Comparable across cups? - Stable day to day?

Decision Criteria¶

Pass: - Meets all quality standards - No defects present - Consistent with expectations - Safe to release

Conditional Pass: - Minor issues noted - Acceptable for release - Note for future batches - Monitor closely

Fail: - Defect present - Off-profile significantly - Inconsistent cups - Re-roast or discard

Setting Standards¶

Establishing Baselines¶

Reference Samples: - "Target" roast for each coffee - Sealed, stored samples - Regular comparison - Update seasonally

Acceptable Ranges: - Roast colour tolerance (±2 Agtron) - Flavour profile boundaries - Development time window - Defect tolerance (typically zero)

Calibration¶

Team Alignment: - Regular Calibration Sessions - All cuppers taste same samples - Discuss differences - Agree on standards - Document consensus

Frequency: - Weekly team cupping - Monthly formal calibration - Quarterly reference reset - Annual comprehensive review

Documentation¶

Cupping Log¶

Record: - Date and time - Roast date and batch number - Cupper name - Quick sensory notes - Pass/fail decision - Agtron reading (if taken) - Any action items

Format: - Paper forms - Digital database (Cropster, etc.) - Spreadsheet - Dedicated QC software

Tracking Trends¶

Analysis: - Batch-to-batch variation - Roaster consistency patterns - Seasonal quality changes - Origin-specific challenges - Equipment issues

Metrics: - Pass rate percentage - Average scores (if scored) - Defect frequency - Batch consistency - Time trends

Common Issues Identified¶

Roast Defects¶

Under-Development: - Grassy, sour notes - Lack of sweetness - Peanutty character - Pale colour - Action: Extend development time

Over-Development: - Baked, flat flavours - Reduced acidity - Dull notes - Loss of origin character - Action: Reduce development or lower heat

Scorching: - Burnt, acrid notes - Bitter, harsh - Localized scorching visible - Action: Lower charge temp or reduce heat

Tipping: - Burnt tips on beans - Bitter spots in cup - High initial heat - Action: Reduce charge temperature

Coffee Quality Issues¶

Green Coffee Defects: - Quakers (underdeveloped beans) - Fermentation notes - Mould or must - Storage defects - Action: Improve green QC, supplier feedback

Processing Issues: - Fermented, sour - Phenolic, medicinal - Inconsistent processing - Action: Source evaluation, supplier communication

Storage Problems: - Faded, stale - Loss of vibrancy - Cardboard, papery - Action: Review storage, rotate stock

Integration with Roasting¶

Feedback Loop¶

Same-Day Communication: - Immediate roaster notification - Specific issues identified - Suggested adjustments - Batch disposition

Profile Refinement: - Cupping informs profile tweaks - Iterative improvement - Season-to-season adaptation - Crop variation response

Roaster Training¶

Using Cupping for Education: - Roasters cup their own batches - Connect sensory to roast decisions - Understand consequences - Develop palate - Take ownership

Efficiency Strategies¶

Time Management¶

Streamline Without Compromising: - Set up while roasting - Cup at end of day (all batches together) - Quick notes format - Digital forms for speed - Batch similar samples

Typical Timeline: - 10-15 minutes per sample evaluation - 30-45 minutes for full day's production - Including setup and cleanup

Prioritization¶

What to Cup: 1. New coffees (always) 2. First batch of established coffees 3. Mid-day spot check 4. Any concerns 5. Random verification

What to Skip (if time-pressed): - Repeat batches of stable coffees - Verified consistency - Never skip: New, customer complaints, first of day

Equipment¶

Essential Tools¶

Cupping Basics: - Cupping bowls (250-300ml) - Cupping spoons - Grinder (dedicated, calibrated) - Kettles (temperature-controlled) - Timer - Spittoon

Optional but Valuable: - Refractometer (TDS measurement) - Agtron spectrophotometer (colour) - pH meter - Moisture meter - Scale (precise weighing)

Maintenance¶

Daily: - Clean all bowls and spoons - Rinse and dry grinder - Descale kettles as needed - Clean cupping table

Weekly: - Deep clean grinder - Calibrate equipment - Replace worn items - Check water quality

Best Practices¶

Consistency¶

Standard Operating Procedure: - Written protocols - Same time each day - Same person (or rotated trained people) - Same environment - Same methodology

Avoiding Drift: - Regular reference checks - Calibration sessions - External validation - Statistical monitoring - Panel Performance Monitoring

Remove Bias: - Code samples (numbers, not coffee names) - Randomize order - Evaluate independently - Discuss after scoring

Communication¶

With Production Team: - Clear, immediate feedback - Constructive language - Specific observations - Actionable suggestions

With Management: - Trend reports - Quality metrics - Issue escalation - Success celebration

Advanced Techniques¶

Statistical Process Control¶

Statistical Analysis: - Control charts - Trend analysis - ANOVA for batch comparison - Outlier detection - Process capability

Benefits: - Predict quality issues - Identify systemic problems - Quantify improvement - Justify investments

Comparative Cupping¶

Side-by-Side: - Current batch vs. reference - Beginning vs. end of day - Different roasters same coffee - Same coffee different days

Learning Tool: - Illustrate consistency - Identify variables - Train new cuppers - Validate changes

Training New Cuppers¶

Onboarding Process¶

Week 1: - Observe production cupping - Learn protocol - Practice on samples - Cup alongside experienced

Month 1: - Independent cupping - Verification by senior cupper - Feedback and coaching - Building confidence

Months 2-3: - Full responsibility - Ongoing calibration - Increasing autonomy - Handling edge cases

Skill Development¶

Key Competencies: - Defect identification - Roast development recognition - Consistency assessment - Communication skills - Decision-making confidence