King Oyster

King Oyster Mushroom Growing Kit Preparation and Growing Instructions

Kit Contents:
Growing Kit Box
 Plastic Bag Containing Substrate
 Spray Bottle
 Instruction Booklet

Tools Required:
Clean Sharp Knife
Clean Hands!

Preparing Your Kit & Harvesting Your Mushrooms

  • Stand the growing kit box on its end and open the taped side.
  • Carefully remove the contents. 
  • Take a sharp knife and an ‘X’ shape slit where one is marked on the plastic bag containing the substrate.    
  •  Return the plastic bag containing the substrate block to the box, making sure that the ‘X’ slit in the plastic that you have cut is facing outwards from the box. 
  • Do not place the box in direct sunlight, neither should it be placed in the dark. The mushrooms grow in natural light. 
  • The box should be away from direct light and in cool conditions. The ideal growing temperature for this type of mushroom is 16 – 18 degrees centigrade. 
  • A bottle and spray have been provided for misting the mushrooms. Fill the bottle with boiled and cooled water. Using the spray, mist the area around the slit and inside the box once a day to ensure the box remains humid.
  • It should take 1 - 2 weeks for your first set of mushrooms to grow.
  • The mushrooms are ready to harvest just as the edges of the cap begin to develop a wavy edge. Be careful not to leave harvesting too long after this as they will begin to go past their best. 
  • To harvest your mushrooms gently twist and pull the mushrooms from the bottom of their stems being careful not to damage the mycelia underneath.
  • Once you have finished harvesting the mushrooms, soak the substrate overnight in a bucket of cold water. Then drain the substrate block and reset the growing block up, exactly the same way as before. You should get another 1 or 2 mushroom fruitings out of the block.  
  • Once you have harvested your mushrooms you can store them, clean and dry, in a paper bag in the fridge for up to 10 days.
  • These kits are designed to be used inside family homes. The growing kits should not be placed in garden sheds, greenhouses or conservatories where the conditions are adverse to growth. 
  • King Oysters are unique among oysters in that the stem is highly desired for culinary uses, so allowing the stem to grow large may be desirable.
  • Following the last harvest, the leftover soil can be used in your garden!    

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