Japanese Pantry Staples: What to Buy and How to Use Them

Japanese cooking has a reputation for requiring obscure, expensive ingredients. In reality, six pantry staples appear in nearly every dish, and once you have them, most recipes click into place. The challenge is knowing which versions to buy - quality varies enormously, and the wrong mirin or a cheap soy sauce makes a noticeable difference to results. Here is what to look for.

Soy Sauce (Shoyu)

The most important ingredient in the Japanese pantry. Made from fermented soybeans, wheat, salt and water, soy sauce adds saltiness, umami and a deep reddish-brown colour. It is not the same as Chinese light or dark soy sauce, though Chinese soy sauce works as a substitute in many recipes.

Types:

• Koikuchi (regular/dark): The default. Used for most cooking, dipping, sauces and marinades. About 10 kcal per tablespoon, 900mg sodium.
• Usukuchi (light): Lighter in colour, saltier in flavour. Used in dishes where you don't want the sauce to darken the food. Do not confuse "light" with low-sodium.
• Tamari: Brewed with little or no wheat. Thicker, richer, deeper. The natural gluten-free option - check labels as some brands include trace wheat.
• Shiro (white): Very light colour, mild flavour. Used in chawanmushi and delicate clear soups where appearance matters.

What to buy: Kikkoman koikuchi is the standard globally available option and is genuinely good. Yamasa is another reliable brand. Avoid cheap supermarket own-brand soy sauces - they often include colour additives and lack depth.

Storage: Refrigerate after opening. Lasts 1-2 years sealed, 6 months after opening.

Mirin

Sweet rice wine, used to add sweetness and gloss to sauces, glazes and simmered dishes. About 45 kcal per tablespoon. Alcohol content is typically 14%.

True mirin (hon-mirin) vs mirin-style seasoning (mirin-fu): Hon-mirin is fermented and contains natural sugars and flavour compounds that develop during fermentation. Mirin-fu is a cheaper product made from sweetened water and glucose syrup. The flavour difference in finished dishes is noticeable.

What to buy: Look for "hon mirin" on the label. Hinode and Takara brands are widely available. Mirin-fu works as a substitute when you cannot find the real thing - just reduce any added sugar in the recipe.

Sake

Japanese rice wine. In cooking, sake tenderises meat by breaking down proteins, removes fishy or gamey smells, and adds a subtle sweetness and depth. The alcohol cooks off during heating.

Cooking sake vs. drinking sake: Dedicated cooking sake (ryorishu) is cheaper and often contains added salt - check labels. Drinking sake works better in recipes and is worth using when the sake flavour matters in the final dish (such as simmered fish). For most everyday cooking, ryorishu is fine.

Substitutes: Dry sherry or dry vermouth in a 1:1 ratio. White wine works but adds different flavour notes. Omitting sake entirely is better than adding water.

Miso Paste

Fermented soybean paste made with koji (a mould culture) and salt. The fermentation time and grain base determine the flavour: white (shiro) miso ferments for weeks and is sweet and mild; red (aka) miso ferments for months to years and is intensely savoury. Most supermarkets carry "mixed" or "blended" awase miso - a reliable default.

How to use it: Never boil miso - it kills the live cultures and dulls the flavour. Add it off the heat, dissolved in a small amount of hot liquid first. Beyond soup, miso works in marinades (miso-glazed salmon, miso-glazed tofu), salad dressings, braising liquids and butter sauces.

For a thorough understanding of how miso is made, the site's miso from scratch guide covers the full process in detail.

Dashi

The foundational Japanese stock. Unlike Western stocks, which are cooked for hours, dashi is made in 15-20 minutes and has a clean, light, umami-forward flavour. It is the base for miso soup, simmered dishes, noodle broths and dipping sauces.

Ichiban dashi (first-draw): Kombu steeped in water to near-boiling, removed, bonito flakes added off the heat, steeped 3-4 minutes, strained. Pale gold, clean, versatile.

Instant dashi (hondashi granules): Dissolved in hot water, used in most Japanese homes on weeknights. The quality is good and the convenience is significant. Buy the granules, not the liquid stock - the granules keep indefinitely and give you more control over concentration.

Kombu dashi: Kombu-only, no bonito. Lighter umami, naturally vegan. Use for vegetarian versions of miso soup and simmered dishes.

Full technique for homemade dashi is covered in the miso soup from scratch guide.

Japanese Short-Grain Rice

Japanese rice (uruchimai) is short-grain and high in amylopectin starch, which makes it slightly sticky when cooked - essential for onigiri, sushi, and donburi dishes where the rice needs to hold together or absorb sauce without falling apart.

Brands: Koshihikari is the premium variety and the most widely exported. Hitomebore and Akitakomachi are slightly cheaper and nearly as good. Avoid long-grain rice for Japanese dishes.

How to cook it: Rinse 3-4 times until water runs nearly clear. Soak for 30 minutes. Cook at 1 cup rice to 1.1 cups water. Bring to a boil, reduce to the lowest heat, cover, cook 12 minutes, then steam off the heat for 10 minutes without lifting the lid. A rice cooker handles all of this automatically and is the single most useful piece of equipment you can buy for Japanese cooking.

Secondary Additions Worth Having

Once you have the six above, these extend your range considerably:

• Toasted sesame oil: Finishing oil only - a few drops over finished dishes. Do not cook with it.
• Rice vinegar: Mild, slightly sweet. Used in sushi rice, sunomono and dressings.
• Kombu: Dried kelp for dashi and as a base flavour in rice.
• Katsuobushi (bonito flakes): For dashi and as a garnish.
• Nori (dried seaweed sheets): For onigiri, hand rolls, and garnish.
• Japanese mayonnaise (Kewpie): Uses only egg yolks and rice vinegar. Richer and more savoury than regular mayo.

For a full guide to building a week of Japanese home cooking around this pantry, see the Japanese home cooking complete guide.