"Wood vinegar," or pyroligneous acid, is the fluid or sap derived from tree cells which exhibits exceptional permeability and sterilizing properties. It is a pure and natural solution, safe for use in the home.


(1) The volatile components generated by thermal decomposition inside the charcoal kiln naturally cool inside the smokestack and precipitate as wood vinegar (sap). This wood vinegar is the cell fluid (sap) which had flowed in the young tree and is the natural chemical compound "pure pyroligneous acid" which has many useful components. While the color of the wood vinegar is the color of black tea, the color is darker in winter and lighter in summer. The color may also vary within a season, depending on climatic conditions. The variances in color, however, have no effect on components and do not require adjustment in the amount of consumption.

(2) Many of the substances within sap have an extremely pleasant aroma and fragrance. (Hart, Harold. Organic Chemistry: A Short Course Sixth Edition. This textbook clearly states the close relationship between organic chemistry and everyday life.)

Extraction Method

(1) Wood from 30-40 year old cut down, withered, disbranched and cross-cut trees is placed in a charcoal kiln.

(2) The charcoal kiln is built from soil and stone and is thus often referred to as an "earthen kiln."

(3) A clay pipe is used as the smokestack (the 30-meter extension, however, is made of an acid resistant stainless steel).

(4) The duration of extraction is limited to the period in which white smoke is emitted from the drying wood. (Temperature: 80-120)

(5) The obtained liquid is the fluid or sap from the wood cells and is referred to as unrefined wood vinegar.

(6) This unrefined wood vinegar is transferred to a storage tank and aged for a period of six months or longer.

Property & Application



1. Pure, natural vegetation

Softens bath water, making the water alkalescent.

2. Sterilizing components and permeability

Used as an antiseptic or sterilizing agent for open wounds or itching.

3. Substance of functionality

Used as a deodorizer, air freshener or repellent.

4. Solubility

Can be properly diluted due to its solubility.

5. Mokusaku types

(a) Refined (for external use)
(b) Distilled (for internal use)

Range of Utility

(1) When Mokusaku is added to bath water, the behavior of the antiseptic, antiflammatory and antiallergic organic components such as acetic acid and phenol decreases the size of the water molecules, facilitating absorption into the skin and increasing energy flow so that the body is warmed to the core.
(2) When added to laundry water, Mokusaku mixes with the organic material attached to clothing, thereby facilitating dirt removal. Mokusaku also alleviates damage caused by residual chemical detergents, maintaining an antibacterial effect on the clothing. Even without the use of bleaching or softening agents, Mokusaku has a fluffing effect on the clothing without harming the fabric.
(3) Internal use of Mokusaku is reportedly effective against such illnesses as diabetes, hepatitis and hangovers, relieving or preventing symptoms.
(4) Use of this product may be restricted depending on government laws and regulations. Please take the necessary precautions and use the product at your own risk.

History and Features

Wood vinegar has a long history and has been known for its strong sterilizing properties. It has been used for ages as a sterilizing agent, deodorizer, medicine for intestinal disorders, and an additive which brings out flavor and preserves freshness. Since the 1930's, wood vinegar has also been used in agriculture as a fertilizer and growth-promoting agent. At present, wood vinegar is recognized by experts of various fields as having positive health and beauty effects, and is thus widely used in daily life in Japan.

While good wood vinegar has approximately 200 components that are constantly reacting and changing over time, the transparency, fragrance and components of the wood vinegar do not change over tens of years. This similarity with wine underscores the high level of purity of the product.


The color and fragrance of the product does not remain after use.

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Kobe (650-0015), Japan.
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