Mentsuyu (面つゆ) is a versatile soy-based noodle sauce widely used in Japanese cuisine. This product adds the juice of yuzu (柚子), an East Asian citrus fruit, to give it a bright and fragrant flavour. Yuzu has a distinctive aroma often described as a blend of lemon and grapefruit, and is growing in popularity across Europe. Important: this is a 3x concentrated sauce and must be diluted with water before use — do not consume undiluted. For a dipping sauce, dilute 1 part sauce with 2–3 parts water. For noodle broth, dilute further. It is most commonly used as a dipping sauce for cold soba (buckwheat noodles), udon, and somen, and also works as a tempura dipping sauce or cold tofu dressing.

This product contains the following allergens: ① Gluten (wheat) — wheat is used in the production of soy sauce. Do not consume if you have coeliac disease or a wheat allergy. ② Soybeans — present in the soy sauce and hydrolysed soy protein. ③ Milk — milk is listed as an allergen on the import label. ⚠️ Important: if you have a milk allergy, please check the allergen declaration on the physical EU export label before purchasing. Under EU Regulation 1169/2011, all allergens must be clearly declared. Please also note that this product contains food-grade alcohol (ethanol) and is not halal-certified.

No, this product is not suitable for vegans, as it contains ingredients of animal origin (including a milk allergen declaration). Suitability for vegetarians has not been confirmed. If you follow a strict vegetarian diet, we recommend contacting the manufacturer or retailer before purchasing. This product is also not gluten-free and is not halal-certified.

The undiluted sauce contains approximately 10.87g of salt per 100g, which is indeed a high figure. However, as this is a 3x concentrated sauce, it must always be diluted with water before consumption. For example, diluting at a 1:2 ratio (1 part sauce to 2 parts water) reduces the actual salt concentration to approximately one third. Think of it in the same way as European soy sauce or fish sauce — it is a concentrated seasoning used in small quantities after dilution. If you are following a low-sodium diet, we recommend diluting more generously or using a smaller amount. The EU label should carry a "dilute before use" instruction.

Yuzu (柚子) is a citrus fruit native to East Asia that has been used in Japanese and Korean cuisine for hundreds of years. Its flavour and aroma can be described as a complex combination of the tartness of lemon, the slight bitterness of grapefruit, and the sweet fragrance of mandarin. It is considerably more aromatic and complex than European lemon or lime, with a particularly distinctive essential oil character from the zest. This product also contains a small amount of sudachi (すだち, Citrus sudachi), another Japanese citrus, alongside the yuzu juice, creating an even more layered citrus profile. The combination of the deep umami of soy sauce with the brightness of yuzu delivers a flavour experience entirely different from an ordinary soy-based sauce.