CRC (Color Remediation Column) เทคนิคในการทำความสะอาดสารสกัดกัญชา คืออะไร?

CRC (Color Remediation Column) What is the technique for cleaning cannabis extracts?

What is CRC (Color Remediation Column) technology?

In recent years, cannabis extraction methods and processes have evolved significantly, including the use of Color Remediation Column ( CRC) technology , a technique for cleaning cannabis extracts, removing impurities, unpleasant odors, pesticides, and also lightening the color of the extract. This process can make it difficult for consumers to know what quality they are buying, as the color and smell of an extract are not always indicative of quality.

There is a lot of debate about CRC products. Some say that using CRC technology is good because it removes dirt. On the other hand, some consumers argue that CRC can be used on low-quality products, making them look like high-quality products, which can mislead consumers.

1. What is CRC Technology?

CRC (Color Remediation Column) is a technique that uses a steel cylinder filled with a medium such as sand, silica, or activated carbon to filter out impurities from cannabis extracts (such as BHO), changing the color of the extract from dark brown or black to gold or even white.

This process is not required to be specified on the product, so consumers cannot know for sure whether the product they purchase uses CRC technology. CRC uses several steps and filters, including:

  • silica
  • Diatomite
  • Bentonite clay
  • Activated carbon

2. Basics of CRC

CRC systems usually consist of paper filters and filter media such as silica gel, activated carbon, and bentonite clay. The first step is to prepare the filter media. Then, the proportion of filters used must be calculated, depending on the quality of the cannabis raw material and the flow rate of the extraction. Adjusting the flow rate appropriately will make the filtration process more efficient.

3. Why use CRC?

CRC technology began to gain popularity in 2017. Extractors found that it could filter out impurities from extracts in the same way they filter water. While it can be useful to make products more appealing, sometimes substandard manufacturers use the technology to make lower-quality products look better, such as removing pesticide residue or lightening the color of an extract, which prevents consumers from judging its quality by its color or smell.

4. Is CRC safe?

There is currently very little research on the safety of CRC technology for cannabis extraction. Although the use of materials such as diatomite and bentonite clay has been studied in other industries and has been found to cause long-term respiratory damage, there is not enough information on the effects of consuming cannabis extracts that have undergone the CRC process.

5. Method of detecting CRC extract

If you are unsure about CRC products, here are some tools you can use to check:

  • Odor : CRC may give the extract a strange chemical odor due to the filtration process.
  • Taste : CRC extract may have an unnatural or chemical taste if it is over-filtered.
  • Color : Extracts that are white or very light in color may have been treated with CRC, as cannabis extracts are naturally slightly amber in color.



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