A gallery plot generated from GC-IMS analysis showing 29 selected VOC samples. Each column shows a separate VOC, whilst each row represents a sample. This viewer is useful for visualising similarities and differences in VOC composition of different samples. VOC analysis of crude palm oil (CPO) was performed using a FlavourSpec^© (G.A.S GmbH, Dortmund, Germany) using an autosampler with an integrated agitator and heating block for automated sample handling. 10 mL of each CPO sample was provided in a 20 mL glass vial. Prior to analysis, each sample was melted in an agitated water bath for 15 min at 45 °C and 275 rpm, to allow an aliquot of 1 g of CPO sample to be taken and placed into a 20 mL glass headspace vial. Each vial was closed with a polytetrafluorethylene-sealed magnetic screw cap. Following sample conditioning by the autosampler, 200 µL of headspace was automatically injected into the system for analysis.