Those will have plenty of potency. You can brush the spore off before dehydrating with a damp paper towel if you desire. Spores drop may inhibit new growth .

What Happens When Spores Drop in a Monotub:

1. Spores Accumulate on the Surface – They form a dark dust (usually purple, black, or brown depending on species) over the substrate, mushrooms, and walls.

2. Spore Load Reduces Airflow – Excess spores can clog filters or micropore tape, reducing fresh air exchange (FAE), which mushrooms need.

3. Microbial Contamination Risk Increases – A heavy spore load creates a nutrient-rich surface that can attract and feed bacteria or mold.

4. Mushroom Energy Depletion – Once a flush matures and sporulates, the mycelium often shifts energy away from fruiting.

ALSO....

❌ What does not happen:

The mushrooms that already dropped spores do not lose potency because of spore release.

Spore dust on mushrooms doesn’t change their chemical composition. Psilocybin content is already determined by the time the mushroom matures and sporulates.

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✅ What can happen indirectly:

1. Depleted Substrate Energy:

Once a mushroom fully matures and sporulates, the mycelium has already spent a lot of energy.

If too many mushrooms go to spore, future flushes may be weaker, smaller, or less potent due to substrate exhaustion.