I use this for all my washing machine. I am satisfied very satisfied. For my part - 40 / 50g flakes for 1 liter of hot not boiling water, 1 spoon tablespoon white vinegar, 1 spoon tablespoons of baking soda 10 drops of essential oil of lavender, 10 drops of essential oil Tea Tree, 6 drops of essential oil of lemon. Mix well and let stand for 24 hours in a bottle. Shake every time that the slurry liquid is homogeneous. Perfect for all linens even delicate. It also avoids problems with allergies due to certain chemical components from other laundry.