“…Actually, this high-throughput technique has been used to assess several data associated with aroma characteristics of foodstuffs and beverages, and multiple uses covering target and/or non-target analysis have been reported. In particular, GC × GC has been widely used in food applications, for instance for authenticity testing; search for differences between good and/or off odor, varieties or cultivars, and geographical origins; exploring for markers related with technological steps (e.g., ripening, postharvest conditions, fermentation), aroma, or aging; study of the key odorants, among others, as illustrated by the following studies: table, fortified and sparkling wines ( Perestrelo et al, 2010 , 2011 ; Weldegergis et al, 2011 ; Santos et al, 2013 ; Welke et al, 2014 ; Whitener et al, 2016 ; Rocha et al, 2021 ), beer ( Inui et al, 2013 ; Martins et al, 2015 , 2017 , 2018 ), elderberry ( Salvador et al, 2016 ), elderflower ( Salvador et al, 2017 ), grape ( Banerjee et al, 2008 ), aromatic plants ( Shellie et al, 2002 ; Klimánková et al, 2008 ; Petronilho et al, 2011 ), sea salt ( Silva et al, 2010 , 2015 ), coffee ( Bressanello et al, 2021 ; Lopes et al, 2021 ), hazelnut ( Cordero et al, 2010 ; Kiefl et al, 2013 ; Kiefl and Schieberle, 2013 ; Rosso et al, 2020 ), honey ( Čajka et al, 2007 ; Siegmund et al, 2018 ), milk ( Hayward et al, 2010 ), cake ( Rega et al, 2009 ), meat ( Sekhon et al, 2010 ; Planche et al, 2015 ; Li W. et al, 2021 ), pear ( Wang et al, 2019 ; Fonseca et al, 2020 ), and virgin olive oil ( Peres et al, 2013 ; Purcaro et al, 2014 ; Ros et al, 2019 ).…”