From my experience, supercritical CO2 extraction is great for getting higher yields and pulling a full spectrum of cannabinoids, but it can also extract unwanted lipids and waxes. That means extra post-processing, like winterization, is usually needed. It’s also a more aggressive process, which can sometimes degrade terpenes if not done carefully.

On the other hand, subcritical CO2 extraction operates at lower temperatures and pressures, which helps preserve more fragile terpenes and results in a higher-quality, more flavorful extract. The downside? Lower yields and longer run times.

Some people even run a two-step extraction, starting with subcritical to pull terpenes first, then switching to supercritical to extract cannabinoids. It’s a slower process, but it can produce really high-quality concentrates.

What’s your go-to method for CO2 extraction? Do you prioritize yield or terpene preservation? Any equipment recommendations? Let’s discuss!