In some instances, you might not use your entire batch of potion for one spell. If you’d like to save your potion to use later, here are a few guidelines for getting the longest shelf life out of your potion.
Glass containers that you can tightly seal with a lid are best for storing potions. It’s especially important to keep the lids securely sealed. Essential oils and tinctures are more likely to evaporate. With oil-based potions, any time they are exposed to the air, they deteriorate through the process of oxidation.
Mason Jars, baby food jars, vials sealed with a cork, bottles with eyedroppers, or spice jars are all excellent choices for storing your potions. Plastic is not recommended.
If possible, use an opaque jar or dark-colored jar to add a bit of extra protection to your potion. Being exposed to too much light can sometimes cause a potion to age prematurely or turn rancid.
Label your potions with the ingredients you used, what its magical use is, and the date you made your potion. Most oil-based potions last for about a year. Tinctures will typically stay good for much longer.
Store your potions somewhere cool, dry and dark. For potions with fresh herbs, keep the liquid refrigerated. For oil-based potions or tinctures, you can store them in a cabinet. Don’t keep them in a bathroom or above a stove. Too much heat or moisture can damage your potions.
You can usually get away with keeping your oil-based potions in the fridge. It may extend the life of your potion, but you might notice that over time the potion gets cloudy or small solid chucks form in the oil. This is normal. It’s not an indication that your potion has gone bad, it’s just what happens when oil sits undisturbed in the fridge for a while.
Freezing your potions could be a good way of preserving them for a long time. This is especially beneficial for water-based potions with herbs. Freezing oil-based potions, however, isn’t recommended as it won’t significantly extend that potion’s shelf life.
Adding salt, vitamin E oil, or a few drops of a tincture can extend the life of your potion.
Herbs can cause a potion to go bad before the other ingredients. Consider straining any herbs out of your potion before storing it. The potion will retain the energy of the herbs even after you’ve removed them from the liquid.
Be sure to examine your potion before each use. Notice if its color has changed or if you notice an unpleasant smell. When in doubt, discard your old potion and mix up a new one.