It specifically points to a lack of “double-blind studies that have been performed to test the efficacy of flushing,” but notes that despite that absence of research, “the overwhelming majority of cannabis growers flush.” There isn’t much research that supports this concept, and there is a Master’s Thesis out there which found flushing to be ineffective in removing any significant amount of nutrient from the bud. However, well-flushed flowers that are rushed through the drying and curing process will not burn perfectly.īut what does the research on flushing say?įlushing science is thin. Some growers compare flushing cannabis with water to fasting for people, “It forces any stored nutrients to be used up by the plant and triggers a push to ripen.”

Hydroponic indoor growers “flush” the plant for the last 10 days before harvest by only feeding it water, instead of a nutrient mix. While there is some divide over what white ash signifies, there is pretty wide consensus around the importance of a weed grower’s common practice called “flushing.”

If the wood is green, it leaves a chunky charcoal.” You can think of campfires you might have watched. “White burning ash (from anything burning) indicates a clean combustion. “A properly grown bud flushed of nutrients with water for the last 10 days of growth will give you a white ash when the bowl is cashed.” People who felt it was a measure of moisture in the bud (too moist bud = black ash) Īnd people critical of the entire premise. People who felt a growing step called “flushing” was the cause of white ash and a sign of good bud Is there something about bud that burns to white that makes it better than bud that burns to black? So if the long-held belief that holding in hits gets you higher is not true, yet persists, what about white ash? Similarly, we likely all know the old-school belief that holding in a hit gets you higher (“if you cough you don’t get off”), which was disproved by research over 30 years ago. We’re probably all familiar with the belief that cannabis flower burning to “white ash” indicates it was grown right or is otherwise good bud.

How to ash blunt