A computer implemented method for increasing efficiency of a food production plant said method comprising extracting plant data from a control system of the food production plant, wherein the control system is communicatively connected to control units (105a-e) placed in food production units (106 a-e) in the food production plant, wherein the production units comprise one or more of the group heat exchangers, separators, homogenizers, and filling machines, generating a digital model of the food production plant based on the plant data extracted from the control system, wherein the digital model comprises equipment objects (A-E) having actions (i-xii) linked thereto, connections (I-V) between the equipment objects (A-E), and series of actions linked to equipment object arrangements, downloading a plant assistant library comprising a number of assistant objects, each assistant object comprising an initial production scenario comprising an initial series of actions linked to an initial equipment object arrangement, and a recommended production scenario comprising a recommended series of actions linked to a recommended equipment object arrangement, wherein the recommended production scenario provides for an increased efficiency of the food production plant compared to the initial production scenario, wherein the initial production scenario and the recommended production scenario comprise a food product being produced, and food properties associated with the food product being produced, the plant assistant objects comprising information about different treatment required by different food products, identifying a current equipment object arrangement in the digital model that corresponds to the initial equipment object arrangement of the initial production scenario of a matching assistant object, replacing the current equipment object arrangement and a current series of activities linked to the current equipment object arrangement with the recommended equipment object arrangement and the recommended series of the matching assistant object in the digital model, transmitting update data corresponding to the recommended equipment object arrangement and the recommended series in the digital model to the control system, updating the food production plant based on the update data. extracting plant data from a control system of the food production plant, wherein the control system is communicatively connected to control units (105a-e) placed in food production units (106 a-e) in the food production plant, wherein the production units comprise one or more of the group heat exchangers, separators, homogenizers, and filling machines, generating a digital model of the food production plant based on the plant data extracted from the control system, wherein the digital model comprises equipment objects (A-E) having actions (i-xii) linked thereto, connections (I-V) between the equipment objects (A-E), and series of actions linked to equipment object arrangements, downloading a plant assistant library comprising a number of assistant objects, each assistant object comprising an initial production scenario comprising an initial series of actions linked to an initial equipment object arrangement, and a recommended production scenario comprising a recommended series of actions linked to a recommended equipment object arrangement, wherein the recommended production scenario provides for an increased efficiency of the food production plant compared to the initial production scenario, wherein the initial production scenario and the recommended production scenario comprise a food product being produced, and food properties associated with the food product being produced, the plant assistant objects comprising information about different treatment required by different food products, an initial production scenario comprising an initial series of actions linked to an initial equipment object arrangement, and a recommended production scenario comprising a recommended series of actions linked to a recommended equipment object arrangement, wherein the recommended production scenario provides for an increased efficiency of the food production plant compared to the initial production scenario, wherein the initial production scenario and the recommended production scenario comprise a food product being produced, and food properties associated with the food product being produced, the plant assistant objects comprising information about different treatment required by different food products, identifying a current equipment object arrangement in the digital model that corresponds to the initial equipment object arrangement of the initial production scenario of a matching assistant object, replacing the current equipment object arrangement and a current series of activities linked to the current equipment object arrangement with the recommended equipment object arrangement and the recommended series of the matching assistant object in the digital model, transmitting update data corresponding to the recommended equipment object arrangement and the recommended series in the digital model to the control system, updating the food production plant based on the update data.