Shiro miso is a fermented soybean paste made from soybeans, salt, and cultured rice (koji). It’s produced using koji-fermented rice together with soybeans.
Shiro miso is sold as a paste and comes ready to use.
Common package sizes range from about 12.1 oz (345 g) up to 35.2 oz (1 kg).
Yes — product details state it is made from non-GMO soybeans and packaging lists "Non-GMO Quality."
The product details explicitly state "no MSG added."
Shiro miso is described as mellow and the sweetest of the shiro misos, and it is noted as having the lowest sodium among them.
Packaging notes include resealable packages and standard package/weight labeling such as "Package Quantity: 1" with net weight figures.
