Liquid detergent concentrate

A liquid detergent concentrate comprising:

• (i) 22 to 46% by weight alkaline metal hydroxide;
• (ii) 5 to 50% by weight dispersing agent, chelating agent, or a combination thereof;
• (iii) 0 to 5% by weight tenside;
• (iv) 0 to 5% by weight excipients;
• and
• (v) 28 to 39% by weight water,
• wherein the detergent concentrate is a liquid suspension having a viscosity of at most 6500 mPa·s, as measured according to ISO 2555:1989 at 20° C. at a rotational speed of 5 rpm,
• wherein the liquid suspension is formed by a process comprising the steps of:
• a) providing a portion of the dispersing agent, chelating agent, or combination thereof in an aqueous solution,
• b) optionally adding excipients,
• c) in the case of the addition of excipients, subsequently adding a further portion of a dispersing agent,
• d) adding a portion of the alkaline metal hydroxide as an aqueous solution,
• e) optionally adding a tenside,
• f) adding a portion of the alkaline metal hydroxide as a solid,
• g) adding a dispersing agent,
• h) adding a further portion of the alkaline metal hydroxide,
• wherein the steps of adding are carried out while stirring and wherein at least the addition steps d) to h) are carried out such that in an aqueous phase there is maintained a temperature of at most 40° C.