Green-Kernel Black Soybeans Steeped in Vinegar

Why people make this tonic

This is one of Nourilo’s quiet favorites — black soybeans dry-roasted until their skins crack open, then steeped in sweet rice vinegar in a glass jar. In traditional food-therapy thinking, black beans are linked with the kidneys and black rice vinegar is associated with antioxidant support, circulation, and keeping hair dark. It takes about a month and a half before it is ready, but it keeps for a long time and a spoonful a day is an easy habit.