If using fresh cranberries and oranges, gift the potpourri within 2-3 days of making and keep stored in the fridge. If you use all dried fruits, the potpourri can be stored at room temperature for up to a month.Click to see full answer. Also question is, how long does stovetop potpourri last?Once started, you can usually get several hours of intensely wonderful smells, but scents may last up to 4 days if you use the same potpourri. Just keep a close eye on the water levels for safety reasons. how do you store homemade potpourri? Store in a tightly covered glass jar. For simmering potpourri, use a teaspoon potpourri per one cup of water. Place potpourri in water, bring to a boil and simmer on low until the whole house is perfumed; turn off heat. Strain and let dry if you wish to save and reuse the potpourri. Also to know, how long will potpourri last? 2 months Can you reuse stove top potpourri?Stove top potpourri is a quick and simple way to bring the scents of the holidays into your home. What’s better is that you can store and reuse it over and over again.