The Marukin Premium Koikuchi Pure Soy Sauce is a classic Japanese soy sauce known for its well-balanced umami, rich color, and versatile flavor. Koikuchi-style soy sauce, the most common type in Japan, is crafted from fermented soybeans and wheat, producing a deep, savory taste with mild sweetness. This premium version is perfect for enhancing sushi, sashimi, marinades, stir-fries, and dipping sauces.
Origin: Japan
Type: Koikuchi soy sauce (dark soy sauce)
Condition: Ready to use
Storage: Store in a cool, dry place; refrigerate after opening
Deeply savory with balanced saltiness and umami, featuring subtle notes of wheat and soy fermentation. It has a dark, glossy appearance and a smooth, full-bodied taste that enhances both cooked and raw dishes.
Use as a dipping sauce for sushi, sashimi, and dumplings.
Incorporate into stir-fries, noodle dishes, and marinades.
Brush over grilled meats, fish, or vegetables.
Mix into sauces, dressings, and soups for added depth of flavor.
Q: What does “Koikuchi” mean?
A: Koikuchi refers to the dark, full-bodied soy sauce style most commonly used in Japanese cuisine, ideal for general-purpose cooking.
Q: Is this gluten-free?
A: Traditional Koikuchi soy sauce contains wheat, so it is not gluten-free unless specifically labeled.
Q: Can it be used for raw and cooked dishes?
A: Yes, it is suitable for both raw applications like sushi and cooked dishes like stir-fries and marinades.
The Marukin Premium Koikuchi Pure Soy Sauce is a versatile Japanese kitchen essential that delivers authentic umami, deep color, and refined flavor to a wide range of culinary applications.
Shipping & Delivery
📦 Order preparation: Please allow up to 72 hours for preparation before your order is ready to ship. Preparation time is separate from shipping time, and dispatch depends on our shipping schedule below.
🚚 Overnight shipping: Perishable seafood orders ship via UPS overnight service. “Overnight” refers to the expected carrier transit time after UPS receives your package. It does not mean delivery within 24 hours of placing your order.
🗓 Shipping schedule: Our regular dispatch days are Monday through Thursday, excluding holidays, with expected delivery Tuesday through Friday. Orders ship after preparation is complete and a carrier pickup is available. Orders that are not ready before Thursday’s pickup may ship the following week. Friday and weekend orders are not automatically guaranteed Tuesday delivery. Saturday delivery applies only when available and specifically confirmed for your order.
📍 Tracking and delivery estimates: A tracking number may be issued before carrier pickup. Check UPS tracking after pickup for the current estimated delivery date. Holidays, severe weather, product availability, and carrier disruptions may affect preparation, dispatch, or delivery. If you need an order for a particular occasion, contact us before ordering.
❄️ Receiving your order: Check your delivery address carefully, monitor tracking, and arrange for prompt unpacking and appropriate storage upon arrival.
Please review our Shipping Policy and Refund Policy for full details.
