FLUSHING TRIAL
IMPACT OF DIFFERENT FLUSHING TIMES ON QUALITY AND TASTE IN CANNABIS SATIVA L.
Data presented by: Stephanie Wedryk, PhD, Director of R&D at Rx Green Technologies
Taylor Wall, Research Operations Lead at Rx Green Technologies
Ryan Bennett, Research Associate at Rx Green Technologies
Rx Green Technologies evaluated the effects of different flushing times on chemical profile, flavor, and
smoking characteristics in Cannabis flower.
• Flushing periods of 14, 10, 7 and 0 days were imposed on Cherry Diesel.
• No differences were detected between flush treatments for yield, potency, or terpenes.
• Analysis of mineral content of leaves indicated small changes in content of iron and zinc.
• Taste test panelists tended to prefer flower flushed for 0 days.
Taste and combustion qualities of Cannabis are dependent on the chemical characteristics of the flower. These
chemical characteristics can be influenced by management practices during the growing cycle. For this reason,
many Cannabis growers implement a flushing period where only water is fed to plants in the final days to weeks
before harvest. While many cultivators attest to the effects of a flush, no scientific studies have been conducted to
validate this practice. Rx Green Technologies has undertaken a first of its kind study to determine the influence of
different flushing times on the chemical profile, flavor, and combustion characteristics of Cannabis flower
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