A digital twin is composed of two existing systems: the tangible system of physical reality and its virtual and numerical replica which is enabled by real data and underling models through the underlying use of digital technologies. 

The presence of digital twins is motivated by the necessity of obtaining some information about the real system questioning the virtual one by a non-intrusive manner. Such technology helps us to monitor the real system, to carry out maintenance tasks or optimize some process. 

In this talk, I will present an industrial application which consists in the building of an embedded digital twin of the bread baking process to the end of monitoring the energy consumption to avoid waste.