CRC Tech Challenges the Gold Standard

Color remediation column (CRC) technology, is a novel post-extraction procedure that enables cannabis producers to substantially brighten the color of marijuana oil, disproving the traditional understanding that the gold hue alone assures its superiority and origin. This process helps to eliminate odors and pollutants from butane hash oil, a common kind of marijuana extract. To extract and filter contaminants, several hash producers now utilize a "color remediation column," which is a steel cylinder filled with a filtration media similar to sand. Additionally, CRC is also utilized to remove any leftover pesticides, off-flavors, or even byproducts from methods such as synthetically turning CBD or ∆9 into ∆8-THC. However, the technology has sparked debate over whether the industry’s quality control is going up in smoke.

Proponents of the technology advocate that CRC is an effective way to clean up low-grade distillate enough to resemble top-shelf resin, while opponents question the transparency of quality since it’s difficult to differentiate CRC-treated products. Though there are questions about whether good-quality CRC hash is achievable, industry insiders say that any reputable hash lab can ensure that residual CRC media is extracted from oil with simple filtration using a 0.45 um Polyethersulfone (PES) membrane filter.