Prune juice stays fresh in the fridge for about 7 to 10 days after opening. Always keep it tightly sealed and refrigerated to maintain quality and safety.
Prune juice is a tasty and healthy drink loved by many, but once opened, it can be tricky to know how long it stays good. Leaving it out too long or storing it incorrectly can ruin the flavor or even make it unsafe. If you’ve ever wondered whether your prune juice is still okay to drink, you’re not alone — it’s a common question with simple answers. In this article, I’ll walk you through exactly how long prune juice lasts after opening, how to spot when it’s gone bad, and smart storage tips to keep it fresh. Let’s dive into everything you need to know to enjoy your prune juice safely and deliciously!
What Is Prune Juice and Why Is It Popular?
Prune juice is made from dried plums, also called prunes. It is a natural, sweet drink that many people enjoy for its taste and health benefits. Prune juice is rich in vitamins, like vitamin A and potassium, and contains dietary fiber, which helps with digestion. Many drink it to support regular bowel movements and boost overall gut health.
Its natural sweetness and mild flavor make prune juice a popular choice for people of all ages. It is often used as a gentle remedy for constipation and is valued for its antioxidant properties. If you want to learn more about prune juice’s nutrition, the USDA FoodData Central is a great resource.
How Long Does Prune Juice Last After Opening?
Once opened, prune juice should be stored in the refrigerator to keep it fresh and safe. Typically, prune juice lasts about 7 to 10 days in the fridge. Beyond this period, the juice may lose its flavor and nutrients, and harmful bacteria can grow.
At room temperature, prune juice should not be left out for more than 1 to 2 hours. Leaving it out longer can cause spoilage and increase the risk of foodborne illness. If you want to keep prune juice longer, freezing is an option. Frozen prune juice can last for up to 6 months but may slightly change in taste and texture after thawing.
Several factors affect how long prune juice lasts, such as whether it’s pasteurized or contains preservatives. Pasteurized juices last longer because harmful microbes are killed during processing. For more food safety tips, check the USDA Food Safety and Inspection Service guidelines.
Storage Method | Shelf Life | Notes |
---|---|---|
Refrigerated | 7–10 days | Keep sealed and cold |
Room Temperature | 1–2 hours | Not recommended to leave out longer |
Frozen | Up to 6 months | May alter taste after thawing |
Signs That Your Prune Juice Has Gone Bad
Knowing how to tell if prune juice is spoiled helps you avoid drinking unsafe juice. Here are the key signs to watch for:
- Smell: Fresh prune juice has a sweet, fruity smell. If it smells sour, fermented, or off, it has likely gone bad.
- Taste: A sharp, sour, or bitter taste means the juice is spoiled.
- Appearance: Look for changes in color or clarity. Cloudiness, darkening, or sediment that wasn’t there before can be signs of spoilage.
- Mold: Any mold inside the bottle or on the juice surface means it should be discarded immediately.
- Fizzing or Bubbling: If you notice fizzing, it could be fermenting, which is unsafe to drink.
If you notice any of these signs, it is best to throw the prune juice away to avoid stomach upset or food poisoning. For general advice on spotting spoiled juices, the Mayo Clinic offers reliable guidance.
Best Practices for Storing Prune Juice

To keep prune juice fresh and safe, store it properly after opening. The best way is to refrigerate it immediately. Always close the bottle tightly to stop air from getting in, which can spoil the juice faster. Use a clean cap or lid to avoid contamination.
Avoid pouring prune juice directly from the bottle into cups or glasses without cleaning utensils first. This helps prevent bacteria from entering the juice. If you don’t plan to drink it soon, consider freezing prune juice. Use an airtight container and leave some space for expansion. Frozen prune juice keeps well for up to six months.
Do not store prune juice near strong-smelling foods because it can absorb odors. Also, keep it away from heat or sunlight, as warmth speeds up spoilage. For more details on proper food storage, visit the FDA Food Storage Guide.
Health Risks of Drinking Expired Prune Juice
Drinking prune juice that has gone bad can cause health problems. Spoiled juice may contain harmful bacteria or yeast that can lead to food poisoning. Symptoms include stomach pain, nausea, vomiting, and diarrhea.
Even if the juice looks fine, its taste and nutritional quality decline after expiration. Consuming old prune juice regularly can upset your stomach or weaken your immune system.
If prune juice smells sour, tastes strange, or shows any signs of spoilage, do not drink it. When in doubt, throw it away. To learn about foodborne illness risks, see the CDC Food Safety Basics.
How to Tell If Prune Juice Is Still Fresh
Knowing if your prune juice is fresh is key to enjoying it safely. Fresh prune juice usually has a clear, deep amber color and a sweet, fruity smell. When you open the bottle, it should smell pleasant—not sour or fermented. If the juice has changed color, turned cloudy, or developed a strange smell, these are signs it may be spoiled. Taste can also help you decide; fresh juice tastes sweet and mild, while spoiled juice might taste sour or bitter. Always check for any mold or bubbles inside the bottle, as these indicate fermentation or contamination. When in doubt, it’s better to throw the juice away than risk your health. Learning to trust your senses helps keep your food habits safe and enjoyable.
Benefits of Drinking Prune Juice Regularly

Prune juice is packed with nutrients that support your health. It is rich in vitamins like A and K, minerals such as potassium, and antioxidants that help fight free radicals. One of the best-known benefits is its ability to support digestion. Prune juice contains natural fiber and sorbitol, a sugar alcohol that acts as a gentle laxative, helping to relieve constipation. Drinking prune juice regularly can improve gut health and keep your digestive system working smoothly. Additionally, it can provide a quick energy boost thanks to its natural sugars. While it’s healthy, moderation is key because too much prune juice can cause stomach upset due to its laxative effect.
Differences Between Homemade and Store-Bought Prune Juice
Homemade prune juice and store-bought prune juice differ in shelf life and preparation. Store-bought juice is usually pasteurized, meaning it’s heated to kill harmful bacteria. This process helps it last longer—about 7 to 10 days after opening if refrigerated. It may also contain preservatives that extend shelf life. Homemade prune juice, on the other hand, is fresh-pressed and contains no preservatives. Because of this, it usually lasts only 3 to 5 days in the fridge. Homemade juice also retains more natural enzymes and flavors, but it’s more prone to spoilage. Both types offer great nutrition, but storage and safety tips vary slightly
Freezing Prune Juice: What You Need to Know
Freezing prune juice is a great way to extend its shelf life beyond the fridge. When frozen properly, prune juice can last up to six months. Use a clean, airtight container to store it, leaving some space at the top because liquids expand when frozen. Thaw the juice in the fridge to keep it safe, and shake well before drinking, as some separation may occur. While freezing helps preserve nutrients, it can slightly change the juice’s texture and flavor. It’s best to freeze prune juice in smaller portions to avoid waste and to enjoy it fresh when thawed. For detailed tips on freezing fruit juices, see the USDA Freezing and Food Safety guide.
Frequently Asked Questions (FAQ)
Can you drink prune juice past the expiration date?
It is best not to drink prune juice past its expiration date. The juice may lose flavor and develop harmful bacteria. If it smells or tastes off, do not drink it.
Is homemade prune juice different in shelf life?
Yes. Homemade prune juice usually lasts shorter, about 3 to 5 days in the fridge, because it lacks preservatives and pasteurization.
Does pasteurized prune juice last longer?
Yes. Pasteurization kills bacteria, so pasteurized prune juice can last up to 10 days after opening if refrigerated.
How can I tell if prune juice is still safe?
Check the smell, taste, and look for mold or bubbles. Any changes mean it’s safer to discard the juice.
Can freezing prune juice affect its taste or nutrition?
Freezing may slightly change the juice’s texture and flavor but generally keeps the nutrition intact.
Is it safe to drink prune juice left out overnight?
No. Leaving prune juice out overnight can cause bacteria to grow, making it unsafe.
Conclusion
Prune juice is a tasty and healthy drink, but it needs the right care after opening. Keep it in the fridge, tightly sealed, and use it within 7 to 10 days for the best flavor and safety. Watch for changes like bad smell, off taste, or mold to avoid drinking spoiled juice. Proper storage helps you enjoy prune juice without worry.
By following simple tips like refrigerating promptly and avoiding leaving it out, you can keep your prune juice fresh and safe. If you don’t plan to finish it soon, freezing is a good option to extend its life. Always trust your senses—when in doubt, throw it out.
Feel free to share your own tips or ask questions in the comments below!