Trails to Oishii Tokyo

Lemons first came to Japan some 150 years ago, and have since been blended with Japanese citrus fruits to create brand-new types. We journey to a tiny island in the Seto Inland Sea where some 25% of Japanese lemons are grown and discover its unique, lemon-friendly climate and topography. We also see the surprising ways lemon farmers use lemons in Japanese cuisine from tempura to hot pot. Last but not least, we pucker up for some delicious lemon-based sweets.

Onions are eaten throughout the world, but in Japan, they're cooked with original techniques and used in a variety of Japanese dishes. This time, we bite into some of those dishes, including one available for just a short time in spring and another that features onion leaves. How have onions influenced Japanese cuisine? Join us to find out!

This episode features natto, a fermented soybean product known for its powerful smell and sticky texture. Both economical and nutritious, natto is a staple Japanese breakfast food. Mito, north of Tokyo, is the natto capital of Japan. See how traditional, organic natto is made, and have a look at a variety of unique dishes that feature natto.

Our focus today is hijiki, a variety of seaweed that has been consumed in Japan for over 1,000 years. Much like tea leaves, this nutritious, low-calorie food is often dried, and soaked in water before use. Hijiki grow quickly at the start of spring on rocky coastlines, and are only available for harvest for a few days. Dive in to find out more about what ancient Japanese considered to be a gift from the sea

Matcha is known worldwide as a popular ingredient in sweets. But originally, matcha is green tea leaves pulverized into micron-sized powder and mixed into hot water to make tea. We visit Uji, Kyoto Prefecture, a place where matcha is traditionally cultivated and produced, and learn how matcha is used in the tea ceremony, which is considered to encapsulate the spirit of Japanese culture and hospitality. Finally, we see how its unique bitterness is used to create a variety of novel dishes.

This time, tofu. These popular white blocks, sometimes called the "meat of the fields," are high in protein and low in calories, making them a popular diet food. We visit a tofu maker in Tokyo, where tofu competition is fierce, to see how he carefully selects his soybeans, and even take a ride in his tofu-selling truck! We also discover unique tofu dishes, including some from a famed French chef who uses tofu in brand new ways. Join us and learn what makes tofu so great.

The Karei is a type of flatfish beloved in Japan. Karei is great as sashimi, of course, but also simmered, grilled, deep-fried, and more. In short, it can be enjoyed in a variety of ways through the year. This time, we travel to Oita Prefecture in Kyushu, the southernmost of Japan's main islands, to discover a highly-valued type called Shiroshita-karei. There, we talk to fishermen and chefs to discover what is behind the great flavor of this fish.

Today we focus on Aji, or horse mackerel, one of Japan's most popular types of fish due to it being both delicious and economical. Seki-aji is a rare fish caught in the tides of the narrow straits of Kyushu known for its outstanding umami. Experienced fishermen must read the tide and rely on their intuition. Our reporter goes out to fish with one such expert, and also visits a high-class sushi restaurant to learn about Aji sushi preparation methods that vary according to fish size.

Today, we focus on the king of fruit, mango. Though often thought of as a tropical fruit, they are also grown in Japan. Large, delicious, gorgeous Japanese mangos are traded at incredibly high prices, and are often given as gifts. Our reporter visits a mango grower in Kyushu to learn more about the secrets behind the production of this high-end fruit. Also enjoy unique seasonings made from mango.

This time, we dip into Japanese vinegar. There are many kinds of vinegar worldwide, like balsamic, wine, and malt. But in Japan, most vinegar is made from rice. Rice vinegar is a subtly sour ingredient that matches all kinds of Japanese cuisine and is vital in the making of sushi. We visit a Kyoto Prefecture vinegar maker that does everything in-house, even growing their own rice. We also sample a variety of dishes that incorporate vinegar, like sushi and other traditional Japanese cuisine.