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TWW Cupping Guide – Whole Bean Coffee

April 14, 2023 1 min read

TWW Espresso Profile  vs Distilled Water

Goal: to score blind samples with two different waters.


  • 1  coffee (10 cup min)
  • 2 gallons of distilled water*
  • 1 packet TWW Espresso blend
  • Cupping sheet or equivalent 
  • Porcelain cupping bowls (5 for each set, minimum of 2 sets) + dip cups
  • Scale (g)
  • Grinder
  • 2 identical insulated carafe (or double blind)
  • Masking tape


  1. Add TWW to distilled  1GL water, shake until dissolved. Mark water type on tape and affix to bottom of the water vessel. Have separate participant mark random code to tape , place on top of water vessel (or use preferred method for double blinking samples)
  2. Pour each water into designated kettle, also labeling the kettle with the code. 
  3. Set up a minimum of 2 sets of 5 cups, label each sample with a water code 


  1. Weigh out and grind  the TOTAL amount of coffee you will need for all cups
  2. Dose your typical cupping weight into each cup (link to standard?)
  3. Pour water into corresponding cups
  4. Cup and score each sample 


Discuss results & reveal waters.

Extra Credit

Taste each water before discussing/revealing results.

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