Large fish such as tuna are shown already cut into fillets and bought by the block. Fillets should be almost transparent. Avoid tuna that looks rainbow-colored or black.
My cooking is very simple, so I don't really use machines at all. A knife, cutting board, frying pan and strainer are my essentials.
When I was 11 or 12 - a young boy in Japan - one of my older brothers took me to a sushi restaurant. I had never been to one, and it was very memorable. Back then, sushi was expensive and hard to come by, not like today, when there's a sushi restaurant on every street corner and you can buy it in supermarkets.
Swimming keeps me fit and flexible, and it helps that I have a large pool at my house in Beverly Hills.
Every morning when I woke up, my mother was already in the kitchen making breakfast. It was always the same: steamed rice, pickled vegetables, grilled fish and miso soup. Each day there was something different in the soup such as tofu or potatoes.
It's not unusual for me to wake up in the middle of the night and not know where I am. I take sleep medication to deal with all the flights. But I find it helps to eat at the same time every day.
My flight time is important to me; I actually prefer a longer flight to a short one. That way I have time to read a book, watch movies, and think about new dishes.