Brush for Demijohns - Demijohn - Equipment Demijohn brush is ideal for not only cleaning demijohns but is also great for some of the barrels where hands can't reach! Brush Total Length:- 48cm, Brush Size Length:- 23cm, Brush width 7cm at max Approx. All dimensions are approximate and subject to minor variation. How to Use a Demi John Brush Using a demijohn brush is simple. First, rinse the demijohn with warm water to remove any remaining wine or sediment. Next, add a cleaning solution, such as a mixture of water and baking soda or vinegar, to the demijohn. Then, insert the demijohn brush and gently scrub the inside of the container, paying special attention to the narrow neck and bottom. Rinse the demijohn thoroughly with warm water and allow it to air dry.
