1, no, they taste very different. If there is no sushi vinegar, you can mix it with white vinegar, sugar and salt.

2, the color of sushi vinegar is light yellow, directly mixed in sushi rice. The taste is slightly sour, not as strong as the taste of mature vinegar. Sometimes when you make sushi in Japan, you will use fruit vinegar produced somewhere. In short, white vinegar such as vinegar essence will not be used, because sushi rice should be slightly sour and fragrant to better match the sweetness of fish and shellfish. Therefore, if white vinegar is mixed with "relics" (the reputation of sushi rice grains), other ingredients of sushi will not have a taste.