Sushi started out as street food and it was not until the 19th century that sushi took the form as we know it today due to the rich variations of fish in Tokyo Bay. Sushi is a true delicacy that only spread around the world in the 20th century. Because sushi is sometimes also served lukewarm, its packaging is very important. These series of black PS with a clear OPS lid are stiffer in quality and can better withstand the warmer content. As a result, the tray retains its shape better. Worldwide this is the most sold sushi tray for take away (or carry out) sushi.