Bottles of Guinness used to have a little plastic “widget” with a nitrogen charge in them. When you opened the bottle the drop in pressure would cause the nitrogen to release and foam up the beer. But the size of the widget meant they could only get 11.2 oz of cold, refreshing stout in the bottle.
Then they removed the widget. I’m not sure if they did anything special to replace the foaming head, but they sure didn’t replace the widget with 0.8 oz of beer.
Bottles of Guinness used to have a little plastic “widget” with a nitrogen charge in them. When you opened the bottle the drop in pressure would cause the nitrogen to release and foam up the beer. But the size of the widget meant they could only get 11.2 oz of cold, refreshing stout in the bottle.
Then they removed the widget. I’m not sure if they did anything special to replace the foaming head, but they sure didn’t replace the widget with 0.8 oz of beer.