040 - The Art & Science of Curing Cannabis: Optimizing Potency, Terpenes, and Consistency

Cultivation Elevated - Indoor Farming, Cannabis Growers & Cultivators - Pipp Horticulture

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This episode of Cultivation Elevated dives deep into the curing process of cannabis, exploring its critical role in achieving high-quality flower. Hosts Michael Williamson and Anders Peterson discuss the science behind curing, including moisture content, enzymatic activity, and ethylene gas production. They also examine best practices, common mistakes, and innovative techniques used in both small-scale and commercial settings to optimize terpene retention, potency, and overall product consistency.

Introduction

• Hosted by Michael Williamson and Anders Peterson from Pipp Horticulture.
• Episode focuses on curing cannabis, part of a three-part series on harvesting, drying, and curing.
• Discussion blends traditional methods, scientific advancements, and industry best practices.

Understanding Curing & Its Importance

• Drying vs. Curing: Drying is a rapid moisture reduction, while curing homogenizes moisture content.
• Curing enhances the terpene profile, reducing the “grassy” chlorophyll aroma over time.
• Enzymatic activity and degradation of compounds like chlorophyll play a key role in quality.
• Environmental factors like temperature, humidity, and light exposure impact the curing process.

Different Curing Approaches

• Some commercial growers treat the entire drying room as a curing space.
• Traditional methods include curing in bags, jars, totes, or turkey bags.
• Burping (controlled opening of storage containers) is used to release excess moisture.
• New technology is emerging, such as auto-burp systems and sensor-based monitoring.

Science & Variables in the Curing Process

• Ethylene gas plays a role in the ripening process (similar to bananas and tomatoes).
• Vapor Pressure Deficit (VPD) impacts moisture release during curing.
• Cannabinoid changes: Overexposure to oxygen converts THC to CBN, making cannabis more sedative.
• Environmental consistency is critical – differences in humidity, temperature, and air circulation affect the final product.

Challenges & Best Practices in Curing

• Different strains (cultivars) require different curing approaches.
• Sorting buds by size and density helps create consistent drying and curing conditions.
• Packaging matters – nitrogen purging was used in the past, but it sometimes reduced flavor quality.
• Commercial growers need to maintain uniform environments in trim rooms to avoid unintended drying during processing.
• Modified Atmospheric Packaging (MAP), commonly used in the food industry, could play a role in long-term cannabis storage.

Industry Insights & Future Research

• Many growers still rely on experience ("feel") rather than scientific testing.
• More research is needed on ethylene gas’s role in curing and optimal curing environments.
• Tobacco and food drying industries offer some insights, but cannabis curing is unique.
• Technology like Curepuck and sensor-based burping solutions could improve consistency.

Closing Thoughts

• Curing is the key differentiator between good cannabis and high-quality cannabis.
• The science behind curing is still evolving, and industry collaboration is needed to refine best practices.

ABOUT CULTIVATION ELEVATED:

If you are a grower or owner looking to optimize your existing or new cultivation facility or anyone looking to cultivate more in less space, then this is the show for you. Each week, join Host Michael Williamson as he travels across the country, to explore the world of vertical farming and the future of cannabis and food production through his conversations with leading industry operators, growers and executives who are demonstrating success and resilience as growers and cultivators. Each episode provides stories and key insights that will inspire and show you first-hand, how each of these companies have overcome challenges, and found their own path to success. Brought to you by Pipp Horticulture.

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ABOUT PIPP HORTICULTURE:

Pipp Horticulture is the leading space-saving mobile indoor vertical grow racking systems provider. All Pipp Horticulture products are made in the USA and easily integrate with other essential grow equipment like lighting, irrigation, drainage, and airflow systems. Reduce vertical farming costs with Pipp Horticulture’s high-density Mobile Vertical Grow Rack Systems.

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