Bi-plot of the first two PCs of cold-pressed rapeseed oil samples stored in different type of packaging under various storage conditions applied to the variables studied. Explanatory notes: F, freshly pressed rapeseed oil (control oil sample); C/R, storage temperature (cold/room); G/P, container (amber glass/amber PET); L/D, illumination (light/dark); CL/O, access of oxygen (closed/open)