I have an ancestral method of making soy sauce, which is different from ordinary soy sauce and smells good.

You can contact big soy sauce manufacturers to cooperate, which can quickly bring products to market, but you may not be able to keep the secret recipe.

You can also produce it yourself, but it costs a lot of money and it is very difficult to start from scratch! You can take the prepared soy sauce to a big factory for them to taste. If they are interested, they'd better invest. If you don't want to, you can discuss whether to buy him a secret recipe or find an investor!