Phlegmatisation method for phlegmatising an explosive in an aqueous suspension containing a dispersion solution and a dispersion decomposer, characterised in that the phlegmatising method comprises the following steps in the order specified below: - preparation of an aqueous suspension containing 75-80 wt% of water and 20-25 wt% of an explosive, preparation of a dispersion solution containing 40-80 wt% of water, 20-50 wt% of a phlegmatising agent, 0-10 wt% of a dispersing agent, 2-4 wt% of inorganic hydroxides, and 0-1 wt% of stabilisers and preservatives, preparation of a dispersion decomposer containing 0-10 wt% of water and 90-100 wt% of a dispersion-decomposing agent, addition of dispersion solution to the aqueous suspension of the first step at a mixing ratio of 4-5 parts by weight of the dispersion solution to 400-500 parts by weight of the aqueous suspension, - heating of the aqueous suspension to approx. 30°C, deposition of the phlegmatising agent on the surface of the explosive by means of their opposite electric charges as a result of adding the dispersion decomposer to the aqueous suspension at a mixing ratio of 0.5-1 part by weight of the dispersion decomposer to 404-405 parts by weight of the aqueous suspension, - heating of the aqueous suspension to 30-45°C, - cooling of the aqueous suspension to 15-25°C, - separation of the phlegmatised explosive from the aqueous suspension by filtration, - washing of the phlegmatised explosive by rinsing with water, and - drying of the phlegmatised explosive. - preparation of an aqueous suspension containing 75-80 wt% of water and 20-25 wt% of an explosive, preparation of a dispersion solution containing 40-80 wt% of water, 20-50 wt% of a phlegmatising agent, 0-10 wt% of a dispersing agent, 2-4 wt% of inorganic hydroxides, and 0-1 wt% of stabilisers and preservatives, preparation of a dispersion decomposer containing 0-10 wt% of water and 90-100 wt% of a dispersion-decomposing agent, addition of dispersion solution to the aqueous suspension of the first step at a mixing ratio of 4-5 parts by weight of the dispersion solution to 400-500 parts by weight of the aqueous suspension, preparation of a dispersion solution containing 40-80 wt% of water, 20-50 wt% of a phlegmatising agent, 0-10 wt% of a dispersing agent, 2-4 wt% of inorganic hydroxides, and 0-1 wt% of stabilisers and preservatives, preparation of a dispersion decomposer containing 0-10 wt% of water and 90-100 wt% of a dispersion-decomposing agent, addition of dispersion solution to the aqueous suspension of the first step at a mixing ratio of 4-5 parts by weight of the dispersion solution to 400-500 parts by weight of the aqueous suspension, - heating of the aqueous suspension to approx. 30°C, deposition of the phlegmatising agent on the surface of the explosive by means of their opposite electric charges as a result of adding the dispersion decomposer to the aqueous suspension at a mixing ratio of 0.5-1 part by weight of the dispersion decomposer to 404-405 parts by weight of the aqueous suspension, - heating of the aqueous suspension to 30-45°C, - cooling of the aqueous suspension to 15-25°C, - separation of the phlegmatised explosive from the aqueous suspension by filtration, - washing of the phlegmatised explosive by rinsing with water, and - drying of the phlegmatised explosive.