What is wood log shiitake

  • “Reforestation”

    For the cultivation of shiitake mushrooms, we use broad-leaved trees such as oak, which is 15 to 20 years old. In the felled forest, new shoots sprout from the stump. They grow vigorously again while actively absorbing CO2. Forests in good condition are thus maintained by recycling. By growing and consuming log shiitake mushrooms, we contribute to protecting forests and preventing global warming.
    However, the use of satoyama trees is rapidly declining due to the disappearance of the use of firewood and charcoal as fuel, as well as the reduction of production of raw wood shiitake mushrooms. As a result, the number of broad-leaved forests and mountains that have been left uncut for many years has increased year by year, causing pine wilt and oak wilt, and the natural blessings of satoyama and various environmental protection functions have begun to be destroyed. Such phenomena are becoming new environmental and social problems.

  • “Protect biodiversity”

    In broad-leaved forests, there are many species that bear nuts such as acorns in the fall. They provide a very valuable food for wild animals. On the other hand, the forest provides a space where wild animals and other creatures of various sizes can live with peace of mind. And in the forest, there are many microorganisms such as mushrooms that clean fallen leaves, fallen trees, animal droppings and carcasses. They do an important job of breaking down organic matter and reducing it to inorganic matter. This keeps the forest sustainable and renewable.
    Yes, the forest supports the lives of so many creatures with its blessings, and at the same time, the health of the forest is maintained by a wide variety of creatures. Rich forests are truly a symbol of biodiversity.

  • “Enrich the sea”

    Healthy forests and mountains have a dam function to store rainwater. They are not only safe and tasty drinking water, but also a stable source of water to irrigate downstream fields and support agriculture.
    By the way, did you know that the secret of the rich sea lies in the forest?
    When hardwood forests fall, many leaves and nuts fall to the ground. Eventually, it is broken down by fungi such as mushrooms into minerals and nutrients, which are then transported underground and through rivers to the sea with rain. It then breeds phytoplankton, which feeds sea creatures, and grows a lot of delicious shellfish, shrimp, and fish.
    "I protect this forest and the sea," a log shiitake grower proudly told me.
    "I am protecting this forest and the sea." the grower of the log shiitake told me proudly.

  • The power of shiitake mushrooms is recognized by the world. Oriental mushrooms such as shiitake, king oyster and maitake are famous in many countries as food, especially "shiitake mushrooms". Shiitake contains a lots of umami component called guanylic acid as compared to others mushrooms, which can be obtain from raw as well as dry shiitake mushrooms. Recent study reported that, guanylic acid increases taste sensitivity and it turned out many times umami and easier to feel taste. It is known that eating the dramatically stronger due to the synergistic effect.
    By the way!!
    Guanylic acid is a famous umami ingredient found in shiitake mushrooms. Sea-weed and vegetables contain a lot of glutamic acid. Fish and meat contain (inosinic acid)
    insomniac acid. All these three major umami ingredients are also found in the shiitake mushrooms and to some extent in other mushrooms.

Mushrooms have long been widely used in foods and as traditional medicines for many illnesses. It is now recognized as a beneficial food for maintaining and improving health. Mushrooms are rich in polysaccharides, especially β-glucan, which are said to be effective for health and longevity and treatment of diseases, and are characterized by being a food that activates immunity. Mushrooms are also popular as health foods because they are high in dietary fiber and low in calories.
In addition to these polysaccharides, it contains essential amino acids, minerals, vitamins such as thiamine and pyridoxine, and various components such as ergosterol and vitamin D2, so it has a wide range of pharmacological actions and is effective in preventing various diseases. You can expect it. In addition, mushrooms are high in phenols, so they are also antioxidant foods.
From these components, the pharmacological action of mushrooms is antioxidative action, blood pressure lowering action, cholesterol lowering action, hepatoprotective action, anti-inflammatory action, antidiabetic action, antiviral action, antibacterial action, etc. It is known that there is. In addition, mushrooms do not have strong pharmacological actions and immediate effects like drugs, but have no side effects.
Therefore, to maintain good health, it is important to eat a well-balanced diet regularly.
And instead of expecting dramatic medicinal effects, it is recommended that you eat healthy mushrooms every day to help prevent lifestyle-related diseases.

  1. Cutting wood log

    • Oak trees green leaves changed into autumn leaves and fallen for survive the severe winter. Then they goes in to sleep until spring. Only this season are good for tree cutting for shiitake logs.

  2. Inoculation (Sawdust spawn)

    • Drill the hole of 12mm, 23-25mm depth onto the wood log. If you use 90cm long, it will need about 40-60 holes depends on a diameter of the log.

    • Inoculate sawdust spawn into holes by any machines. Then, sealing the hole with wax or styrene cap to prevent spawn from drying and contamination .

  3. Karibuse (Vinyl Greenhouse)

    • Cover wood logs with vinyl sheet and control the condition( High moisture /mild temperature 1(5-20℃)) for infect Shiitake spawn to wood log after inoculation. You can see white hypha at cut end of logs since approx. 20-30 days started Karibuse. Then, when the kinmon( white mycelium ) appered of the end of cut log surface and begins to become thick, the covered film is gradually opened, and internal humidity is go down slowly.

  4. Honbuse in Hotaba

    • After finishing Karifuse, remove a covered film, Hotagi transfer to Hotaba ( forest, artificial facilities) to do Honfuse which piles up as shown in figure or picts.. this management to make metabolism to a Hotagi under basically open environment. For increase metabolism by giving to log dry/ wet combination. To spawn running develop inside the log and Hodagi will be mycelial manuration.

  5. Soaking

    • A fully incubated shiitake mycelium is ready to change the spawn run (mycelial growth) to the reproductive stage (fruiting, flashing). The sudden change of environment is required to trigger the reproductive stage. Soaked Hodagi in the water for 8-24 hours for flashing to use clean and cold water. Hodagi which spawn run smoothly, you will be able to start flashing around 5-6 months after inoculation Fuji sawdust spawns.

  6. Growing & Harvest

    • Unfold Hodagi for sprouting and harvest. Harvesting time is different depending on country, climate and Shiitake cultivar. If you prefer to harvest a few time in a year, you’d better to select more than 2 types.

  7. Restoration

    • If it is can be keeping the control 15-25℃ with sprinkling water sometime to Hodaki, you can do soaking and harvest Shiitake almost 40-50 days cycle.