Just so everyone knows, the reason to use badger bristle brushes is because they hold the heat better than anything else. If you do two or three pass shaves, the brush and a mug become more important than is obvious.
“Just so everyone knows, the reason to use badger bristle brushes is because they hold the heat better than anything else”
Actually it’s because they hold water better than anything else. More water means more lather and more passes on a single brush load of soap/cream.