Hello PricesseErika, thank you very much for your message and for your patience, given the time our investigations have taken. M-Budget soy sauce is a naturally brewed, authentically Japanese soy sauce. In some cases, a small amount of natural yeast may be present in the early stages of the fermentation process. We hope you find this information useful. Best regards, Lea

Hello PricesseErika, thank you very much for your message and for your patience, given the time our investigations have taken. M-Budget soy sauce is a naturally brewed, authentically Japanese soy sauce. In some cases, a small amount of natural yeast may be present in the early stages of the fermentation process. We hope you find this information useful. Best regards, Lea