Cannabis Storage Walk-in Coolers and Freezers

Cannabis storage units need to support a range of temperature and humidity conditions depending on whether the product is being dried, cured, or held in long-term refrigerated storage. During drying, many operators target temperatures between 60 and 70 degrees Fahrenheit with relative humidity in the 45 to 55 percent range, while refrigerated storage phases typically require lower temperatures and tighter humidity control to preserve potency and prevent mold. Polar King units can be configured across a wide operational range, from heated rooms down to -40 degrees Fahrenheit, allowing a single unit to be specified for virtually any phase of the cultivation and storage process.

A walk in cooler built for cannabis cold storage is designed to control not just temperature but also humidity, ventilation, and lighting, which are often not standard features on most commercial coolers. Polar King units use a 100% seamless fiberglass construction with an air-tight seal that allows these environmental variables to be independently adjusted to match the specific conditions required at different stages of cannabis storage and processing. Standard commercial coolers are typically optimized for food storage and do not offer the same level of environmental customization.

Polar King cannabis cold storage units can be outfitted with temperature data logging and monitoring systems, security hasp locks, redundant refrigeration, lighting controls, ventilation systems, and insulated door viewing windows. These options are designed to support the operational and compliance needs of licensed cannabis facilities, where documentation of storage conditions and physical security are often required. Additional accessories such as vinyl strip curtains and shelving packages are also available to customize the interior layout.

Polar King units can be fully customized to support multiple operational needs, and a combination configuration that accommodates both drying and refrigerated storage within a single structure is achievable through our custom build process. Each phase of cannabis processing has distinct temperature and humidity requirements, and the air-tight seamless fiberglass construction allows environmental controls to be set and adjusted accordingly. For operations that need distinct temperature zones, a combination cooler and freezer unit can also be configured with independently controlled compartments.

Polar King offers walk in cooler and freezer rentals specifically for cannabis cultivation operations that need temporary cold storage during a facility buildout, equipment failure, or the like. Rental units are delivered fully assembled and require only a standard electrical connection to operate, with no on-site construction needed. Both short and long-term rental terms are available.

Polar King’s 100% seamless fiberglass construction creates a continuous surface with no seams, gaps, or panel joints where moisture can accumulate or bacteria can form. The air-tight seal this design provides allows operators to control the internal environment, including humidity and ventilation levels, without interference from the outside conditions.

Polar King offers refrigerated trailer units that are engineered for over-the-road use and can support cannabis transportation and mobile distribution needs. These trailers use the same 100% seamless fiberglass construction as the company’s stationary walk in units and can be customized with the environmental controls and security options required for cannabis operations.

Polar King cannabis cold storage units can be equipped with security hasp locks as a standard accessory option, as well as door-open alarms with horns and strobe lights, available through the custom build process. Because state regulatory requirements for cannabis storage vary by jurisdiction, operators are encouraged to identify their specific compliance obligations before finalizing their unit configuration. Temperature data logging and monitoring systems, which are also available as an accessory, can support documentation requirements related to storage conditions.