To keep your vape juice fresh and flavourful, store it in a cool, dark place, away from direct sunlight, heat, and moisture. Ideally, keep it at room temperature or slightly cooler, like in a drawer or cupboard. Make sure the bottle is tightly sealed to prevent air from getting in, which can degrade the nicotine and flavour over time. Avoid leaving e-liquid in extreme temperatures, such as a hot car, as this can cause it to spoil faster. Proper storage will help extend its shelf life and maintain its quality.