Soy sauce quickly became popular because it has very interesting taste qualities.
However, the product has a significant drawback: once it gets on clothes, it will be difficult to wash off.
You will need to take the powder in gel form and apply a small amount to the stain. Rub the product in for three minutes. Then leave the item for ten minutes.
Next, pour water into the basin, add a little more gel powder and leave the clothes for half an hour. After that, you can put the clothes in the washing machine. There will be no trace of the stain.
On such clothes the stain becomes even more noticeable, but even in this case it can be removed. You will need to treat the soy sauce stain from the inside of the item.
It is best to rub the product in. You need to wait about five minutes. Then proceed to washing in any usual way.
It is worth using a proven bleach so as not to damage the fabric.