- Sakamoto Kurozu, Inc. is a kurozu maker in the town of Fukuyama in Japan's Kagoshima Prefecture.
- It follows a 200-year-old method to ferment and age the black vinegar in 52,000 clay pots.
- It takes one year until the vinegar is ready, but the best batches take three to five years.
Kurozu is Japanese black vinegar made using a 200-year-old technique of naturally fermenting ingredients outdoors in giant clay pots. It takes at least a year until it’s complete, with some of the best batches aging from three to five years. Sakamoto Kurozu, Inc. is one of eight vinegar makers that haven’t changed the process.