Black Pearl King Oyster mushroom strain (Pleurotus ostreatus - hybrid) - best quality, fresh, mushroom mycelium spawn

The Black Pearl Oyster or Black Pearl King Oyster is a oyster mushroom (Pleurotus ostreatus) hybrid from Japan. It is the result of a cross between a European and an Asian Pleurotus ostreatus.

It grows and looks much like Pleurotus eryngii (King Oyster) in the beginning as it matures it will look more like a Pleurotus ostreatus (Pearl Oyster). Black Pearl Kings are less finicky than Pleurotus eryngii, and are able to grow very well indoors. It grows on the same substrates as pearl or king oysters such as masters mix or hardwood sawdust. It is a fast substrate colonizer that fruits dense, meaty mushrooms.

Lab produced, Belgian made, top quality, fresh, mycelium strains on sterilized rye grain berries in special sealed mushroom bags.

Once the bag is opened, the spawn must be used and applied to the substrate immediately.

You will receive ready colonized rye grain spawn for inoculation on various fruiting substrates, of your choice.

Your spawn is prepared fresh after ordering to maximize on quality. For this reason it may take between 10 to 14 days to produce.

Ideally the product should be used immediately after delivery, but, keep it stored in the fridge at 4° Celsius for a maximum of two months and it will still be viable - Respect the expiry date on the package.

EDIBILITY

The Black Pearl King Oyster mushroom (a hybrid of King Trumpet and Grey/Pearl Oyster) is completely edible, delicious, and versatile, offering a meaty texture, rich nutty/earthy flavor, and serving as a great plant-based meat substitute, but it must be cooked and not eaten raw.

HOW MUCH SPAWN TO BUY

The weight of your mushroom spawn ordered determines its intended use, so:

300g - Used to inoculate a sterilized/pasteurized block of 1.5 Kg

500g - For larger sterilized/pasteurized substrate inoculations of up to 2.5 Kg.

BEST GROWING CONDITIONS FOR BLACK PEARL KING OYSTER

Substrate: Hardwood sawdust, Straw

Colonization Temperature:  18-26C, 65-78F

Fruiting Temperatures:  10-20C, 50-68F

Humidity: 90-95%

GROWING 

For maximum results it is best that this mushroom is grown indoor within a hydroponics grow room/tent, but a clean area or dark corner where there is a decent amount of humidity, air exchange and constant temperatures could also be used.

A humidifier would help to monitor humidity. Do not put in direct sunlight and watch out for gnats.