Product obtained exclusively from the acetic fermentation of agricultural productions How to use: Diluted at the rate of one liter of product in one liter of water. For more grown weeds and / or for a more caustic action. Blend with Chestnut Extract. Doses to 2 liters of concentrated vinegar add 1 liter of chestnut extract. The Mixture thus obtained is to be used at a dose of 200g / liter of water (20 kg per hectolitre). Blend with salt. Doses 3 liters of water, 500g of salt and one liter of concentrated vinegar.