For more about why this author writes sci-fi eco-adventures, visit her website: KHBrower.com

Tuesday, August 16, 2016

Oyster Mushroom Report 2 of 4:
Overnight Growth is Coral-shaped

Oyster Mushroom Bucket Experiment
This morning I was aghast to find my oyster mushroom bucket experiment and, when successful, culinary treat had grown coral-shaped formations overnight.

My first flush of mushrooms doesn't have enough flesh to make a meal.

Coral-shaped formation--elegant shapes, but undesirable for an oyster mushroom.
This undesirable coral formation has one of two causes:
  1. not enough light
  2. not enough oxygen; too much carbon dioxide
I've had the oyster mushroom bucket in a western facing bay window, where it gets ample indirect light--ideal for this method of propagation. So, I deduce that the cause is not enough oxygen.

I was using a plastic tent to keep the bucket humid. Though I have ventilation holes and three times a day pull the tent off to let the carbon dioxide escape, I deduce I needed to give the patch more time to air each day.

Oyster Mushroom Bucket -- Out for Fresh Air
The weather is perfect today--70 degrees F and raining--so I took the oyster mushroom bucket to my screened in porch. I plan to trim the coral formations and hope for a second flush of edibles.

Pale Green/Gray Mold
Note: Even the coral doesn't grow here.
Near three of the air holes--where I may have carelessly touched the patch to clear coffee grounds away from the hole--first indications of mold appeared today. This is another undesirable development in my experiment, but easy to correct. In the past, light, regular misting of a mild hydrogen peroxide solution has worked for me.


The three steps I plan to take to encourage a second flush of healthy Oyster mushrooms:
  1. give the patch more fresh air
  2. trim the coral back to the mycelium
  3. spray the green mold with hydrogen peroxide solution 
In my next report, I'll give the steps I took to inoculate coffee ground substrate with the spawn I prepared in a June seminar led by Paul Stamets: Mycelium Running: How Mushrooms Can Save the World.

To learn more about why this author writes sci-fi eco-adventures, and to find out more about her work-in-progress and how writing Mission to Blue Grannus requires her research into fungi and myco-remediation, tap on KHBrower.com.
Thank you, Fungi Perfecti, for supplies, training, and inspiration!