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Flushing is a technique generally considered to improve the quality and smoothness of your final crops. Excess salts and other harsh compounds can build up throughout the plants life-cycle and need to be removed before final harvest. Excess nutrients in the plant can leave a bitter metallic taste which no grower wants! Discover a wide variety of flushing agents from a host of popular nutrient brands including CANNA, and Advanced Nutrients. Flushing times and products can vary based on the substrate used i.e. Soil or Coco or the hydroponic technique the grower is using.