Exploring the everyday science behind brewing and infusion.
Steeping can look almost completely still. Material sits in water, the surface settles, and the drink slowly changes as time passes. From the outside, there may not seem to be much happening. But a small movement can change the whole process. Stirring brings water and steeping material into closer contact. It moves liquid that has …
Coffee bitterness often gets blamed on the bean, the roast, or the water. Those factors matter, but grind size sits much closer to the mechanism that actually creates the cup. It changes how much of the surface is exposed, how quickly water moves through the grounds, and how long different compounds remain in contact with …