>It's a quality issue. Beer served in a new, spotlessly clean glass will have a distinct foamy head on top of clear liquid.
I thought Brits hate head on beer.
I thought Brits hate head on beer.
Northern drinkers traditionally prefer a thicker, creamier head and used beer pumps with a "sparkler" nozzle to provide this, while southern drinkers typically preferred very little head; this historic divide is starting to soften in recent years.
Some European beer styles are properly served with a bigger and frothier head, particularly wheat beers and pilsners.
https://bucolicaholic.com/2016/09/01/on-real-ale-the-sparkle...