The invention relates to a method for producing polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides, and carbon dioxide in the presence of a double metal cyanide catalyst. The method has the following steps: (alpha) the H-functional starter substances or a mixture of at least two H-functional starter substances are introduced; (beta) a sub-quantity (with respect to the total quantity of the alkylene oxides used in the steps (beta) and (gamma)) of one or more alkylene oxides is added to the mixture resulting from step (alpha) for the purpose of activation, wherein the step (beta) can also be carried out multiple times for the purpose of activation; and (gamma) one or more alkylene oxides and carbon dioxide are continuously metered into the mixture resulting from step (beta) (copolymerization), the alkylene oxides used for the copolymerization being the same or different from the alkylene oxides used in step (beta). The invention is characterized in that the carbon dioxide is introduced into the mixture in step (gamma) by (i) gassing the reaction mixture in the reactor from below, (ii) using a hollow shaft stirrer, (iii) combining the controlled deliveries according to (i) and (ii), and/or (iv) gassing over the liquid surface using multi-stage stirring elements.