koivuasu
Koivuasu is a Finnish term that translates to "birch sauna." It refers to a traditional type of sauna where birch branches are commonly used for various purposes. The most prominent use of birch in a koivuasu is the vihta or vasta, a bundle of fresh birch twigs and leaves that is used to gently beat the skin during a sauna session. This practice, known as "havuja" or "vasominen," is believed to improve circulation, cleanse the skin, and provide a pleasant aroma.
The wood used for the sauna's construction might also be birch, though pine and spruce are more
Beyond the vihta, birch can also be used for benches or other sauna accessories. The cultural significance