To be classified as sushi-grade, fish must be frozen at a very low temperature (-20 degrees Celsius/- four degrees Fahrenheit or below) for a specific period (usually between seven and 30 days). This process kills any parasites that may be present in the fish. Sashimi-grade fish does not need to be frozen, as the high level of fat content prevents the growth of parasites.
When buying sushi-grade or sashimi-grade fish, it is important to buy from a reputable source. Make sure that the fish has been properly stored and handled before purchasing. It is also important to ask your sushi chef about the freshness of the fish before eating it raw.
Sushi-grade and sashimi-grade fish are both safe to eat raw. However, it is important to note that sushi-grade fish may not be as fresh as sashimi-grade fish. If you are concerned about the freshness of the fish, it is best to ask your sushi chef before eating.
Both sushi-grade and sashimi-grade fish are delicious and can be used to make amazing sushi dishes. When choosing between the two, it is important to consider the level of freshness that you desire. If you want the freshest possible fish, then go for sashimi grade. If you are looking for a more affordable option, then sushi-grade will be just fine. Whichever you choose, you will be sure to enjoy delicious sushi!