![]() Unfortunately, color remediation column is not only used to lighten the color of extracts. Back in 2016, extractors realized they could filter impurities out of extracts similar to how water filters work, and in 2017, the technology was already very popular despite extractors not talking about it.Įxperts claim that nowadays almost all extractors use CRC tech to some extent, estimating that over 90% of the legal cannabis market use CRC methods. Why Is CRC Used?ĬRC tech is new for most consumers, but those working in certain areas of the cannabis industry have known about it for a couple of years now. So remember that each extraction system is different and you should experiment with flow rates to avoid this kind of problem. Keep in mind that certain filter media and slow flow rate causes some extraction system to overheat. This means that a slower flow will ensure impurities are removed but it will take longer while a faster flow rate will not be efficient but will be much faster, so it’s essential you find the right flow rate to allow the filter enough time to filter out the impurities. When using media for filtration, the flow rate can affect the efficiency of filtration. Once everything is in place, it’s time to place the plant material or extraction in the extraction tubes. On top of that, the amount of media depends on the amount of plant material as fresh frozen plant material will need fewer media to remove chlorophyll than dry plant material or other impurities. The idea is to use enough filter media to give the equipment time to work as too little media will not give enough time to filter. The amount of media depends on several things such as filter media, quality of plant mass, and setup. Calculating the RatiosĪfter the media has been prepared, it’s time to calculate how much to use. These media have to be prepared through a heating and drying process, which without it, can clog flow, stopping production. In general, CRC extractions use a mix of bentonite and silica gel as the main filters. These filters use media such as silica gel, activated charcoal, synthetic magnesium, and bleaching clays so the first step to CRC is to prepare the media. The Basics of CRCĬRC systems usually have a filter at the bottom and a paper filter above. Related story Cannabis Concentrates and Extracts: All You Need To Know 2. This media, in combination with the right equipment, allows producers to take out the chlorophyll that makes extracts greenish or dark brown and the majority of impurities you get when producing extracts with low-quality cannabis flowers. This technology uses the following media to filter out impurities:Īnd a combination of several of the media mentioned above when applying CRC in multiple steps. Now, CRC is not just one thing, color remediation column refers to several different post-extraction processing methods that use different filtration media, equipment and sometimes can have multiple steps meaning that there is no set way to use CRC, every producer has its own method. This happens because laboratories are not required to test for CRC technology and legal dispensaries are not obligated to disclose if CRC technology was used in their products. What Is CRC Technology?ĬRC technology (aka color remediation column) refers to a technology where a steel cylinder is packed with sand, silica or activated charcoal among other media, to filter impurities out of cannabis extracts (such as BHO) while changing the concentrate’s color from dark brown or black to gold or even white.ĬRC can filter impurities and lighten the extract's color.Īlthough you can detect if CRC was used in a cannabis product, it’s not required so it makes it hard for consumers to know exactly what they’re buying. If you’ve haven’t heard about CRC and don’t know enough to decide if it’s good or not, make sure to read along! 1. There’s a huge debate surrounding CRC extracts, on one side, consumers claim that CRC products are better because you’re removing impurities while on the other side, consumers claim CRC can give low-quality extracts the same qualities as top-shelf products, which is kinda lying to the customers. This technology makes it hard for consumers to know what they’re buying because color and smell are no longer a guarantee of the quality of a concentrate. Color remediation column is a technique used to clean up cannabis extracts, removing bad odors, pesticides and even lightening the color of the concentrate. Consumers used to be able to look at extracts and know their quality but, as the cannabis industry grows, new ways of making and processing extracts are discovered, which leads us to CRC. ![]()
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