Mushrooms are a fascinating organism, and cultivating them can be a rewarding venture. However, like all living organisms, they have specific needs and can be sensitive to environmental changes. Any deviation from their preferred conditions can lead to stunted growth or even cause them to revert. This article dives deep into understanding how changes in temperature and other environmental factors can adversely affect your mushroom project.

1. Temperature Fluctuations:

Ideal Temperature Range: Most cultivated mushroom species thrive in temperatures ranging from 70 to 75°F (21-24°C). Some species, like the Psilocybe Cubensis, might have different requirements, so it's always essential to research your specific strain.

Effects of Deviations:

• Cold Temperatures: Exposure to temperatures below the optimal range can slow down mycelial growth. If the temperature drops drastically, it can halt growth altogether or even kill the mycelium.
• Hot Temperatures: Temperatures above the optimal range can not only stunt mushroom spores but can also encourage the growth of competitors like molds and bacteria.

2. Humidity Levels:

Ideal Humidity: Mushrooms require high humidity, usually between 90-95%, especially during fruiting stages.

Effects of Deviations:

• Low Humidity: If the humidity drops below the needed levels, mushrooms can become dry, leading to reduced growth or even preventing fruiting.
• Excess Humidity: While mushrooms love moisture, excessive humidity can promote bacterial contamination and other unwanted molds.

3. Light:

While mushrooms aren't plants and don't photosynthesize, they do require some light to trigger certain stages of growth, like fruiting.

Effects of Deviations:

• Lack of Light: Insufficient light can lead to elongated stems and small caps, a condition known as etiolation.
• Too Much Light: Overexposure won't typically harm the mushrooms but can cause them to dry out if not monitored.

4. Air Exchange:

Mushrooms release carbon dioxide and require fresh oxygen for growth. Hence, proper air exchange is crucial.

Effects of Poor Air Exchange:

• Insufficient Air: Mushrooms can become leggy and develop long, thin stems.
• Stagnant Air: This can increase the risk of contaminants, especially molds.

5. Substrate and Nutrition:

Mushrooms derive their nutrition from the substrate they grow on. If the substrate isn't appropriately prepared or lacks essential nutrients, the mushroom growth can be affected.

Effects of Poor Nutrition:

• Mushrooms can become smaller in size.
• The yield might be reduced, and in severe cases, fruiting might not occur at all.

6. Contaminants:

Environmental cleanliness is paramount. The presence of contaminants, especially molds, can severely hinder mushroom growth.

Effects:

• Contaminated projects may show patches of green, black, or other colored molds.
• Bacterial contamination might make the substrate slimy and give off a foul odor.

In Conclusion:

Mushroom cultivation is a delicate process, and even slight changes in the environment can impact the outcome of your project. By being aware of these factors and maintaining the best conditions possible, you can ensure the successful growth of your mushrooms and avoid unwanted reversion or stunting. Remember, a happy mushroom is a growing mushroom!  You can start growing mushrooms by acquiring spore prints or swabs, Spores101 has a variety of genetics and worldwide shipping.