3D Scenes and Real Labs
Each scene answers one question — what idea does it make clearer than text? Each lab changes one variable.
Scenes
Every scene starts with its thesis. If the thesis is unclear, the scene is not built.
The one idea this scene makes clear
How water moves through the same coffee decides which parts extract more and which less — unevenness is the norm.
/world/extraction
The one idea this scene makes clear
"Grind size" is not one particle size but a cloud: fines, a main distribution and boulders.
/world/grinder
The one idea this scene makes clear
Coffee is agriculture: elevation, temperature and harvest timing together decide how a cherry ripens.
/world/coffee-tree
The one idea this scene makes clear
Processes differ in what stays around the seed, where fermentation happens and how drying differs.
/world/processing
The one idea this scene makes clear
Roasting is a timeline: heat and time push the bean through drying, browning, first crack and development.
/world/roaster
The one idea this scene makes clear
The espresso machine is not a magic box: water goes from boiler through pump and group, meets the resistance of the puck and flows into the cup.
/world/espresso
The one idea this scene makes clear
Steam does two jobs — incorporating air and rolling/heating — and tip position decides which is happening.
/world/milk
The one idea this scene makes clear
Perception first, vocabulary second: compare which cup is sweeter or brighter before words are revealed.
/world/sensory
Real labs
3D cannot teach taste, so every lab happens in a real kitchen: same bean, one variable at a time.
Grind Experiment
Change only：Three grind settings
Keep constant：Same coffee、Same ratio、Same temperature
Chapter 20
Ratio Experiment
Change only：Different ratios
Keep constant：Same coffee、Same grind and technique
Chapter 22
Temperature Experiment
Change only：Two temperatures
Keep constant：Same recipe
Chapter 24
Immersion vs Pour-over
Change only：Extraction geometry
Keep constant：Same bean
Chapter 25
Sensory Triangle
Change only：One of three cups differs
Keep constant：The other two are identical
Chapter 35
Water Experiment
Change only：Two waters
Keep constant：Same coffee、Same recipe
Chapter 21