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Fava Bean and Toasted Rice Shoyu

This fava bean and toasted rice shoyu is perfect for those who are allergic to soy, or avoiding soy beans for sustainability reasons. It is also gluten-free. 

I’ve developed this recipe to use koji, so there is no need to crack wheat or grow spores in an incubator – that tricky part is avoided/done for you. The hardest thing about this recipe is waiting four months for it to be ready. I failed on that part – removing spoons from the top of the mixture a few weeks before it was officially ready! But as someone who’s allergic to soy and so had to endure years without a delicious, umami filled Japanese sauce I think I can be forgiven.

Fava Bean and Toasted Rice Shoyu - A Soya Free Soy Sauce

This fava bean and toasted rice shoyu is made in a similar way to soy sauce, but is completely free from soya. It is perfect for those who are allergic to soy, or avoiding soy beans for sustainability reasons. It is also gluten-free.
Prep Time1 hr
Cook Time45 mins
Maturing Time120 d
Total Time120 d 1 hr 45 mins
Cuisine: Japanese
Keyword: shoyu, Soy Sauce

Equipment

  • 3 litre jar
  • Sauce pan
  • Muslin
  • Bowl

Ingredients

Instructions

  • Rinse the fava beans, removing any bad ones
  • Soak them in one litre of cold water for at least 8 hours
    Soya beans soaking in water
  • Replace the water, pour into a pan, and simmer gently until the beans are cooked (approximately 45 minutes)
  • Whilst the fava beans are cooking, spread the rice on a baking tray. I used a white sushi rice, but any type of rice will do.
  • Bake the rice at 180'C until it is golden brown. This will take about 20 minutes. Ensure you shake the rice regularly for an even colour.,
  • When the fava beans have cooked, drain them.
  • Add one litre of water, which has been boiled and then allowed to cool slightly, to the 3 litre jar.
    Note: The water is boiled to ensure all bacteria is killed, but ensure it has cooled, as if the water is too hot the jar might crack.
  • Add the salt to the water and stir until dissolved.
  • Transfer the cooked beans and toasted rice to a 3 litre jar. Mix well.
  • Once the mixture has cooled to below 40'C, add the koji.
    Note: If you don't have a thermometer, just wait until the jar no longer feels warm.
  • Stir well and then cover with a cloth - I used a muslin, which I attached with an elastic band, but you could use a T-Towel and string.
  • Leave the jar at room temperature for about 4 months; stirring every other day for the first week and then weekly after that.
  • After 4 months the colour will have darkened and the liquid will taste delicious! To remove the liquid from the solids, strain through a muslin. Squeezing to remove as much liquid as possible.
  • Pour into a sterilised bottle and then store in the fridge. Use as you would soy sauce.
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