How to Choose Black Wood Ear Mushroom Spawn? Latest Buying Precautions

The cultivation of black wood ear mushroom has a long history; it was the first edible fungus species to be artificially cultivated in the world, with a history of more than 1400 years to date, and nowadays quite a lot of people grow wood ear. To cultivate black wood ear well, spawn is the key point, so what should you pay attention to when selecting spawn? Let's find out together.

1. Pay attention to the appearance

When buying, check whether the label on the spawn bottle matches the black wood ear spawn, so as to avoid buying the wrong one. The culture time should be within two months, counted from the inoculation date. The spawn age should preferably be 30-40 days. At the same time, also check whether the bottle wall is cracked or the cotton plug has fallen off; if so, do not choose it.

2. Pay attention to the mycelium

Spawn with white mycelium of high purity and thick, short, dense and uniform hyphae is high-quality spawn. If there are mycelia of other colors such as green, yellow, red, cyan or gray among the mycelium, it means the mycelium has also been infected by other contaminant fungi, and it should be carefully screened out and is not suitable for purchase.

3. Pay attention to the fruit body base

If there is a light black fruit body base between the bottle wall and the substrate, it is high-quality spawn; if there is a small amount of fruit body base, it is normal spawn; if the amount is too much, it means the spawn has been subcultured too many times, and although after inoculation the fruit bodies emerge early and in large numbers, they do not grow large and the yield is relatively low, so it is not recommended for purchase. In addition, if there is no gelatinous substance on the bottle wall or only light brown gelatinous substance, then it is qualified spawn; if there is a yellow-brown liquid, it is aged spawn and must not be purchased.

4. Pay attention to the spawn block

Sawdust spawn has mycelium growing all over its surface, so that the sawdust can no longer be seen; when dug out, it is best if it comes out in a block and does not crumble. If the spawn block has already dried out and shrunk, then it cannot be used and is not recommended for purchase.

5. Pay attention to the smell

Pull out the cotton plug; if you smell a fresh fragrance of spawn, then it is a qualified product; if it gives off off-odors such as alcoholic sourness or musty stench, then it is deteriorated spawn and cannot be used.

The above is an introduction to the precautions for buying black wood ear spawn. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.