TOPIC HUB / 15 COLLECTIONS

Water, Science & Sensory

Controlled experiments, water chemistry and sensory skills for understanding why coffee changes.

470PUBLISHED NOTES

Water Lab

100 measured notes and guides

WATER / 001Very soft water: AeroPress water test9 min read WATER / 002Very soft water: V60 water test10 min read WATER / 003Very soft water: French Press water test8 min read

Coffee Science

100 measured notes and guides

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SCIENCE / 001Total dissolved solids: Build a baseline9 min read SCIENCE / 002Total dissolved solids: Run a paired test10 min read SCIENCE / 003Total dissolved solids: Create a field method8 min read

Advanced Sensory

100 measured notes and guides

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SENSORYPLUS / 001Aroma intensity: Calibration round9 min read SENSORYPLUS / 002Aroma intensity: Blind comparison10 min read SENSORYPLUS / 003Aroma intensity: Temperature pass11 min read

Sensory Skills

60 measured notes and guides

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SENSORY / 001Conical hand grinder: Aroma exercise9 min read SENSORY / 002Conical hand grinder: Acidity exercise10 min read SENSORY / 003Conical hand grinder: Sweetness exercise8 min read

Coffee Library

10 measured notes and guides

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COFFEE LIBRARY / 001Coffee Roast Level: A Practical Brew Guide9 min read COFFEE LIBRARY / 002Coffee Freshness After the Roast Date9 min read COFFEE LIBRARY / 003Coffee Grind Size Without Vague Comparisons9 min read

Coffee Curiosity: Temperature

10 measured notes and guides

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CURIOSITY LAB / 001Why Does Coffee Taste Sweeter as It Cools?10 min read CURIOSITY LAB / 002Ceramic vs. Steel: Which Cup Steals More Heat?10 min read CURIOSITY LAB / 003What Happens When Brew Water Waits After Boiling?10 min read

Coffee Curiosity: Grind

10 measured notes and guides

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CURIOSITY LAB / 011Does Slow-Feeding a Grinder Change the Cup?10 min read CURIOSITY LAB / 012One Drop of Water: Does RDT Really Reduce Retention?10 min read CURIOSITY LAB / 013Do Frozen Coffee Beans Grind More Evenly?10 min read

Coffee Curiosity: Water

10 measured notes and guides

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CURIOSITY LAB / 021Tap Water vs. Bottled Water: Can You Taste the Difference?10 min read CURIOSITY LAB / 022How Much Alkalinity Mutes Coffee Acidity?10 min read CURIOSITY LAB / 023Can Water Be Too Soft to Brew Well?10 min read

Coffee Curiosity: Sensory

10 measured notes and guides

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CURIOSITY LAB / 031Does Cup Color Change How Coffee Tastes?10 min read CURIOSITY LAB / 032Can Background Noise Make Coffee Taste Less Sweet?10 min read CURIOSITY LAB / 033Does an Expensive Label Make Coffee Taste Better?10 min read

Coffee Curiosity: Freshness

10 measured notes and guides

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CURIOSITY LAB / 041Valve Bag vs. Airtight Jar: Which Keeps Coffee Fresher?10 min read CURIOSITY LAB / 042Are Frozen Single Doses Worth the Effort?10 min read CURIOSITY LAB / 043What Daily Bag Opening Does to Coffee10 min read

Coffee Curiosity: Milk & Flavor

10 measured notes and guides

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CURIOSITY LAB / 051Which Milk Holds Microfoam Longest?10 min read CURIOSITY LAB / 052Does Sugar Dissolve Differently as Coffee Cools?10 min read CURIOSITY LAB / 053Syrup First or Espresso First?10 min read

Coffee Curiosity: Field Tests

10 measured notes and guides

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CURIOSITY LAB / 061How Much Does Wind Change a Pour-Over?10 min read CURIOSITY LAB / 062Coffee Above 2,000 Meters: What Changes First?10 min read CURIOSITY LAB / 063Can Hotel-Room Water Make Good Coffee?10 min read

Coffee Curiosity: Maintenance

10 measured notes and guides

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CURIOSITY LAB / 071What Dirty Burrs Do to Grind Consistency10 min read CURIOSITY LAB / 072Can Descaling Make a Kettle Faster?10 min read CURIOSITY LAB / 073When Does Rinsing a Paper Filter Matter?10 min read

Coffee Curiosity: Roast

10 measured notes and guides

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CURIOSITY LAB / 081Do Dark Roasts Degas Faster Than Light Roasts?10 min read CURIOSITY LAB / 082Same Color, Different Development: Can You Taste It?10 min read CURIOSITY LAB / 083What Roast Weight Loss Can—and Cannot—Tell You10 min read

Coffee Curiosity: Workflow

10 measured notes and guides

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CURIOSITY LAB / 091Does Pre-Weighing Coffee the Night Before Help?10 min read CURIOSITY LAB / 092A Written Recipe vs. Brewing from Memory10 min read CURIOSITY LAB / 093What 30 One-Variable Brew Notes Can Teach You10 min read