https://www.npr.org/sections/thesal...rinkers-keep-your-head-and-embrace-the-stache
Straight from the horses mouth. Nitrogen rich foam capping a lightly carbonated beer.
It's interesting though, they're view on oxygen is the polar opposite to that of CAMRA. I guess a choice between consistency and complexity.
If the bubbles rising up through a full pint, champagne, cola are CO2. What affects bubble size.
Viscosity?
Acidity?
How much hydrophobic proteins?
Temperature?
Quality of the glassware?
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