The foundations of good sake are quality rice, clean water, koji mold and yeast. They are combined and fermented in precise processes that have been refined over the centuries. Typically filtered (although unfiltered products are also available), the resulting clear to slightly yellowish rice wines have an alcohol content of around 15 percent and relatively mild flavor profiles, ranging from light and crisp to richer, more substantial, fruity notes. Sake pairs well with almost any kind of food but compliments the delicate flavors of traditional Japanese meals particularly well.