Cold Ethanol Extraction Equipment PLC Controlled For High Purity CBD Terpene Preservation

The cold ethanol extraction equipment is specifically designed for low-temperature botanical extraction, focusing on preserving sensitive compounds such as cannabinoids, terpenes, and flavonoids. By operating at sub-zero temperatures, the system minimizes the extraction of unwanted substances such as chlorophyll, waxes, and lipids, resulting in a cleaner and higher-quality extract.

This system is widely used in premium CBD production, pharmaceutical-grade botanical extraction, and terpene-rich product manufacturing. It is ideal for companies that prioritize product purity, aroma preservation, and high market value.

Traditional ethanol extraction performed at room or elevated temperatures often leads to degradation of heat-sensitive compounds. Terpenes, in particular, are highly volatile and can be lost during high-temperature processing. Additionally, warm extraction conditions increase the co-extraction of impurities, requiring additional refinement steps such as winterization and filtration.

Cold ethanol extraction solves these challenges by lowering the operating temperature to as low as -20°C. This significantly reduces the extraction of unwanted compounds while preserving valuable cannabinoids and terpenes. The system uses precise temperature control technology to maintain stable conditions throughout the extraction process.

Advanced filtration systems further improve product clarity, while integrated solvent recovery ensures efficient ethanol reuse. The result is a high-purity extract with improved aroma, potency, and chemical stability, making it suitable for premium CBD and pharmaceutical applications.

• Operating Temperature: -20°C to 5°C
• Extraction Capacity: 50L – 1000L
• Material: Stainless Steel 304 / 316L
• Solvent Recovery: ≥95%
• Control System: Optional PLC automation
• Solvent Type: Food-grade ethanol
• Filtration: Multi-stage cold filtration system
• Safety System: Industrial-grade pressure and temperature protection

CBD isolate production, terpene extraction, pharmaceutical botanical compounds, high-end nutraceuticals, and cosmetic active ingredients.

Chilled ethanol is introduced into the extraction vessel containing plant biomass. At low temperatures, ethanol selectively dissolves cannabinoids and terpenes while minimizing unwanted compound extraction. The mixture is then filtered and transferred to the solvent recovery system, where ethanol is separated and reused.

This low-temperature process ensures that heat-sensitive compounds remain intact, resulting in higher-quality extracts with improved chemical profiles.

Cold ethanol extraction is recommended for premium product lines where terpene preservation and purity are critical. Standard systems are suitable for general extraction, but cold systems are preferred for high-value CBD oils, pharmaceutical applications, and fragrance industries.

Q1: Why is cold ethanol extraction better for CBD?

It preserves cannabinoids and terpenes more effectively.

Q2: Does it improve product quality?

Yes, significantly higher purity and aroma retention.

Q3: Is it suitable for pharmaceutical use?

Yes, ideal for high-grade botanical extraction.

Q4: Is temperature fully controllable?

Yes, precise industrial temperature control is included.