It is best to store essences in a cool, dark place, away from heat sources such as fireplaces, heaters and radiators. Do not store essences near TVs, microwave ovens, computer monitors, mobile phones, speakers, or other sources of electromagnetic fields. With the right care, the power of the essences lasts for many years.
Natural minerals or crystals can be used to keep rooms or places where essences are kept clean. Clear quartz, smoky quartz, and amethyst are particularly good in this regard.