Soy sauce with extra intensity if you find yourself longing for a soy sauce that really packs a flavour punch sawais artisan extra fermented dark soy sauce is the soy sauce for you unlike most soy sauces which undergo a single ferment this traditionally brewed artisan soy sauce goes through an extra fermentation process giving it a particularly intense and umami rich taste that must always be savoured enjoy added to soup and noodle dishes or as a dipping sauce for your sushi or sashim