PJRFSI Client Spotlight: Glass House Brands
About Glass House Brands
Glass House is one of the fastest-growing cannabis companies in the U.S., with a dedicated focus on the California market and building leading, lasting brands to serve consumers across all segments. Whether it be through its portfolio of brands, which includes Glass House Farms, PLUS Products, Allswell and Mama Sue Wellness, Glass House is committed to realizing its vision of excellence: outstanding cannabis products, produced sustainably, for the benefit of all.
Two of its cultivation entities in Carpinteria, California, G&K Produce / K&G Flowers (Padaro greenhouse) and Mission Health Associates (Casitas greenhouse), are now certified to the PJRFSI Cannabis Safety Standard – GACP Edition 2.0 (Good Agricultural and Collection Practices), effective October 11, 2026, covering growing and harvesting.
Why GACP Certification
Glass House Brands has long run its greenhouses with the rigor of agricultural food production. GACP certification gives that work independent, third-party verification. It is also a foundational requirement for the company’s next chapter: building supply relationships in regulated international medical cannabis markets, where buyers expect documented, audited cultivation practices. GACP is the internationally recognized framework for medicinal plant cultivation, and it is the language the company’s medical cannabis partners and regulators already use.
The company chose the PJRFSI Cannabis Safety Standard because it is built specifically for cannabis growing and harvesting, so its requirements map directly to how the greenhouses operate. PJRFSI’s accreditation and reputation in food safety also give the certificate credibility with customers.
The Impact of Certification
Certification pushed Glass House Brands to formalize and verify how its procedures are followed in practice, from documentation and traceability to hygiene and corrective action. Working through the audit sharpened the company’s internal checks and gave its teams a shared standard across both sites.
Externally, certification gives customers and partners independent evidence of how Glass House grows. It strengthens the company’s position with domestic wholesale customers, supports compliance with medical regulatory requirements, and opens the door to international medical markets.
Partnering with PJRFSI
Glass House Brands describes its experience with PJRFSI as very positive. The PJRFSI team was responsive and clear throughout scheduling, the on-site audits, and certificate issuance. The audit was thorough and practical, and the feedback was specific enough to act on quickly, which allowed the company to move from audit to certification efficiently.
What Sets Glass House Apart
Glass House Brands points to three things: scale, quality, and cost. Its large, modern greenhouses combine natural sunlight with advanced climate control, allowing the company to produce consistent, high-quality cannabis efficiently. Its team brings decades of greenhouse agriculture experience and runs cultivation with the discipline of a food-production operation.
Looking Ahead
Glass House Brands is focused on continuing to improve quality and efficiency in its greenhouses and expanding into new markets, particularly international medical cannabis. GACP certification serves as a foundation for that growth, giving partners and regulators confidence in its cultivation practices and positioning the company to pursue additional certifications and export opportunities as those markets open.
Ready to Get Certified?
Learn how the PJRFSI Cannabis Safety Standard can verify your cultivation practices and open new markets.