Grind Diagnostics & Extraction Analysis

Maximize your cup quality. Pinpoint the exact particles causing bitterness and sourness for a clean, balanced brew.

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RSHM Engineers Ltd.

How It Works

  • Standardized Control Beans: We supply single-origin organic Arabica beans from Peru (1,900m elevation). Chemical-free and density-controlled to serve as a pure physical baseline.
  • 15-Stage Physical Sieve: Your ground sample passes through a proprietary 15-stage sieve array to map complete particle size distribution.
  • Boulder Detection: Identifies coarse particles over 2000 microns that cause channel-induced under-extraction and harsh sourness.
  • Micro-Dust Detection: Identifies fines under 180 microns that clog water flow, over-extract, and generate aggressive bitterness.

The Outcome: Total Control

  • The 15-Minute Rule: A single bean breaks into 40,000 particles upon grinding. Immediate surface exposure leads to 60% aromatic loss within 15 minutes. Always grind on-demand to preserve full organic purity.
  • The Sweet Spot: Verifies that your grinder concentrates over 75% of particles in the optimal extraction target zone.
  • Multi-Profile Testing: Test up to 5 grind settings (e.g., Pour-over, Moka, Espresso) in a single kit. Receive clear, dedicated visual PDF reports for each profile.

International Testing Protocol

1
Order and Location Check

Order & Location Check

Select your grind profiles (1 to 5) and submit your location. We verify international courier routing and confirm total kit pricing.

2
Kit Dispatch

Receive Calibration Kit

Receive your complete test kit containing 150g of organic control beans, numbered sample pouches, and a pre-addressed return mailer.

3
Grind at Home

Grind & Pack

Grind the control beans at your target settings on your home grinder, seal the numbered pouches, and pack them into the padded envelope.

4
Return and Lab Analysis

Return & Lab Analysis

Drop the return mailer at your local postal or courier drop-off point. Following laboratory analysis, your custom visual PDF report is emailed to you.

Request International Test Kit