Title: How To Grow Oyster Mushroom at Home?
1How to Grow Oyster Mushroom
2Growing Oyster Mushrooms
- All the members of oyster mushrooms are
saprotrophic (feeds on wood). They are the best
agents of mycorestoration and has also been found
effective in various cancerous treatments.
Moreover they make a delicious meal! - The medium of growth (substrate)
- After intensive research wheat straw or cotton
seeds are found to be two good medium though
other substrates are also applicable.
3Step1 Preparation of the medium (or substrate)
on which the mushroom grows
- Materials required for creating such mediums are
containers, plastic bags, liners, drums, heaters
/burners, gloves, aprons, face masks. - Straw lengths of 5-10 cm should be immersed in
water for 24 hours. - The batch should be properly washed before the
straw is sent for pasteurization (the process of
heating and then cooling). - A drum is filled with more than 30 litres of
water and this is heated on a burner. - The bags of straw are placed in the drum and
separated from water by a suitable platform - The drum is heated for 1 hr. till the time
substantial steam flows through the straw bags - The straw bags are allowed to cool and the bags
are removed to the clean growing room - At every stage the straw is checked for
tenderness and it is made dirt free - Once the straw is prepared it is transferred to
the growing room.
4Step 2The Culture or Growing Room
- The growing room is washed, sterilized with steam
and bleached so that it is properly disinfected.
The growing room should have ventilations for air
flow and enough moisture to let the culture set
in or the cells germinate. Temperatures of 10-24
degree centigrade is usually maintained. Induce
HEPA air filters to remove air impurities and
keep a UV lamp.
5Step 3 The Mushroom Spawn laboratory
- The mushroom spawns are substrates (grain, agar
cultures or liquid medium for inoculation) used
to transfer the vegetative fungal growth or
mycelia threads to a medium on which the mushroom
grows. - Creating pure culture
- 1. A small slice or tissue of mushroom is cut and
added on PDA medium. In a few days hyphae
(mycelium) covers the entire plate. - 2. Generation of mother spawn
- 3. Propagation
- Preparation of mother spawn
- A small slice of mycelium with the PDA is taken
from pure culture, induced in fresh medium and
then supplements and grains added. Incubation for
15-20 days at specific temperatures creates the
mother spawn. - Propagation
- The mother spawn is then allowed to propagate
before usage
6Step 4 Inoculating the Bags
- The bags of straws should be opened and teaspoons
of spawns should be added. Proper precautions
regarding sterilization and hygiene must be
maintained. Masks and lab uniform must be worn
before inoculation
7Step 5 Monitoring the Bags
- No insect mice or pest infestation should be
there. Moreover the bags should be regularly
checked to ensure that harmful or non-productive
strains does not grow.
8Step 6 Incubation and Colonialisation
- At proper humidity and with right amount of
spawn, the mycelia takes three weeks to run
through the whole straw. More amount of straw
aids the process but runs risk of degeneration.
9Step 7 CO2 Removal
Take care to flush the room with clean air during
the entire process so that CO2 removal happens,
otherwise deformities can be found in the
culture.
10Step 8 Harvesting
- As the bags get completely colonized with the
mycelia, fruiting or pinning may be seen. At this
stage, we need to remove the substrate and
transfer the fruiting to a high humid, clean
room. With fruiting, the humidity must be
increased. Once the mushroom has grown, stop
water sprays, you will observe the mushroom
turning into yellowish brown color. Allow the
entire batch of mushrooms to grow and acquire the
desired color.
11Step 9 Removing the mushrooms from the culture
or growing room
- Once the yellowish color is attained carefully
pick the better quality mushrooms from the
substrate. It should be taken care that the
mushrooms are not washed before packing. Retain
the mushrooms or pack them in damp (not wet)
brown papers. Store them at room temperature
before packing.
12Step 10 Packaging
- The mushrooms are set on a vibrating tray to
remove the impurities or other elements. Then are
then dropped into quality chamber and after
screening of the batches for unwanted batches,
they roll into small perforated plastic bags (to
allow enough air) and the bags are heat pressed
at the seal. Labelling is done after that. They
may even be canned or used for other purposes. - Then the entire batches after screening are
delivered through channels before it reaches your
plate as a delicious recipe.
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