Question 1

... black truffle puree to inoculate. How would do this puree?

Accepted Answer

The extensive instructions how to grow the mushrooms attached to reverse.

Question 2

What species are these?

Accepted Answer

Tuber melanosporum

Question 3

What is the best substrate for these and how to inoculate? 
Can these be grown inside an oak log?

Accepted Answer

The best substrate for growing truffle mushrooms, such as the Tuber melanosporum or Périgord truffle, is a mixture that mimics the natural conditions required for truffle formation. The traditional substrate used for truffle cultivation is a mix of soil and organic matter, known as a "truffle bed." Here are the steps to create a truffle bed and inoculate it:

Selecting the substrate: Truffle beds are typically made using a combination of well-draining soil and organic matter. The soil should be of good quality and have a pH level around neutral to slightly alkaline (pH 7-8). The organic matter can include materials like compost, peat moss, or well-rotted wood chips.

Preparing the substrate: Mix the soil and organic matter thoroughly to ensure a homogeneous blend. The ratio of soil to organic matter may vary depending on the specific truffle species and local growing conditions. Generally, a ratio of around 70-80% soil and 20-30% organic matter is a good starting point.

Creating the truffle bed: Choose a suitable location for the truffle bed. Truffle beds are typically created in well-drained areas with proper sunlight and access to the host tree's root system. The bed should be at least 1 foot (30 cm) deep and wide enough to accommodate the truffle mycelium and the host tree's root system.

Inoculation: Truffle mycelium, which is the vegetative part of the fungus, needs to be introduced into the truffle bed to initiate truffle formation. This is typically done by incorporating truffle spores into the substrate.

Regarding growing truffles inside an oak log, it is less common and more challenging compared to using a truffle bed. While truffles naturally form symbiotic relationships with certain tree species, including oaks, it's more difficult to establish and maintain the proper conditions within a log. The process involves inoculating the log with truffle mycelium and ensuring the log is kept in suitable environmental conditions, including proper moisture and temperature levels. However, successful truffle cultivation within logs is more commonly practiced with other species like the Shiitake mushroom.

It's important to note that growing truffles is a complex and specialized process that requires specific expertise and knowledge.

Question 4

Isn't this a scam? It's nearly impossible to farm truffles by any planned means other than scouring for them.

Accepted Answer

No, anyone can cultivate truffles, all you need is a tree, some spores, and some patience. 
There is no getting around the “needing a tree” part of the process. However, it does not need to be a huge tree, and it is possible to grow one in a pot. There are a few tree species that are known for truffle production. Three of the most common are Hazels, Oaks, and Beeches. Hazels may be the best option if you are growing in a pot because it can remain shrub-like and be coppiced every seven years or so. Again, do a little research here to see what will work for your space, what truffles you’d like to grow, and what will grow best in the environment you live in.

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Spores Black Truffle Mushrooms Mycelium Spawn Dried Seeds Kit for Planting Non GMO 0.25 oz

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