Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
What pH does DMR set for shiitake block substrate?
- 5.5 to 6.0
- 6.8 to 7.0
- 7.2 to 7.8
- 7.8 to 7.9
See the answer and why
5.5 to 6.0 Shiitake wants an acidic substrate, unlike button compost.

