Muroka (無濾過) is “unfiltered” sake. But there is no strict definition of the term. Some muroka have no filtration at all, and others are filtered but without the use of activated carbon.
Sake is typically filtered after racking (oribiki) to adjust color and flavor. And filtration also helps prevent spoilage.
Muroka is often paired with other low-impact brewing options like namazake and genshu. The muroka nama genshu trio is a powerful style of sake worth seeking out.
What Does Muroka Sake Taste Like?
Muroka sake has more body, a richer flavor, and more color than traditional filtered sake.
Popular Muroka Sake Brands
Many, if not all, breweries make muroka sake in limited quantities. Some of the most popular brands include Shichida Junmai Daiginjo, Soma no Tengu “Forest Spirit,” Born Junmai Daiginjo Muroka Nama Genshu, and Watari Bune Junmai Ginjo “55.”