For hundreds of years, Japanese soy sauce was made in wooden barrels, but now, most are made in steel tanks. And some argue: It’s made it less delicious. Can a group of brewers and carpenters save the art of traditional brewing? Hannah Kirshner reports. Curious about all the different varieties? Check out ATK’s reviews on Soy Sauce. Get a 14-day free trial for an America’s Test Kitchen digital subscription at atkpodcast.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.