Storage refers to the conditions under which a food is kept — above all light, temperature, exposure to air, and the container.
In the context of Styrian pumpkin seed oil: The oil should be kept cool, in the dark, and tightly sealed. Light, heat, and oxygen can oxidise the unsaturated fatty acids and change both aroma and colour. Dark glass bottles protect better than clear glass. For shelf life, see the entry Shelf life.
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