In this work. we will analyze the response of a Metal Oxide Gas Sensor (MOGS) array to a flow controlled stimulus generated in a pressure controlled canister produced by a homemade olfactometer to build an E-nose. The built E-nose is capable of chocolate identification between the 26 analyzed chocolate bar samples and four features recognition (chocolate type. extra ingredient. https://www.roneverhart.com/Open-Box-LG-UP8770-86-in-4K-UHD-4K-UHD-120Hz-Smart-TV-86UP8770PUA-2021/