METROFOOD-RI is a research infrastructure to promote data and information on metrology in food and nutrition and is composed by a Physical infrastructure (P-RI) and an electronic infrastructure (e-RI). Concepts and the development of a pilot e-RI is presented in this work where several datasets from different countries are used and interrelated to integrate national e- resources into a European-wide e-RI providing new functionalities. The general functionalities will be described together with the challenges to combine already existing resources. Issues of the outcome will be discussed together with possible solution for the future. Copyright� (2017) by the International Measurement Confederation (IMEKO). All rights reserved.