Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
How long after mycelium reaches the casing top do pinheads appear?
- Same day
- 3 to 5 days
- 10 to 12 days
- About a month
See the answer and why
3 to 5 days Pinheads follow in 3 to 5 days and size up in about a week.

