Perky-Pet hummingbird nectar can last anywhere from 3-10 days depending on a variety of factors such as temperature, exposure to sunlight, cleanliness of the feeder, and quality of the nectar mix. The shelf life of unopened Perky-Pet nectar is about 2 years. Once opened and put into a feeder, it’s important to monitor the nectar closely and change it frequently to keep it fresh. Here’s a more detailed look at how long Perky-Pet hummingbird nectar lasts under different conditions:
Unopened Shelf Life
Unopened containers of Perky-Pet hummingbird nectar concentrate have a shelf life of about 2 years from the date of manufacture. This shelf life assumes the nectar is stored in a cool, dry place away from direct sunlight. The nectar will slowly lose some of its nutritional value and sweetness over time, but should still be safe to use for 2 years as long as it has been properly stored.
Once Opened
Once opened, Perky-Pet nectar will begin to degrade more rapidly. However, an opened container stored in a refrigerator can still last 6-8 weeks. Be sure to tightly seal the container after each use. Opened nectar concentrate that is left unrefrigerated will only last about 1-2 weeks before losing flavor and nutritional value. For best results, stick to the refrigerator once a container is opened.
In Hummingbird Feeders
How long Perky-Pet nectar lasts in hummingbird feeders depends on several factors:
Air temperature
Warmer temperatures will cause nectar to ferment and spoil faster. During summer heat, nectar may last only 2-3 days. Mild spring and fall temperatures allow nectar to stay fresh for 5-7 days. Cool weather below 70°F means nectar can last 7-10 days.
Direct sunlight
Exposure to direct sunlight also heats up nectar and causes it to spoil more quickly. Feeders in shady spots will keep nectar fresher longer than ones in full sun.
Humidity
Very high humidity introduces moisture that can promote mold growth in nectar. This can shorten nectar life to 3-5 days. Low humidity allows for slower nectar degradation.
Cleanliness of feeders
Dirty feeders with residue, mold, or buildup of old nectar will cause fresh nectar to spoil faster. Thoroughly cleaning feeders with a diluted bleach solution before refilling allows for maximum nectar freshness.
Concentration of nectar
The right balance of sugar to water is key for maintaining freshness. Perky-Pet recommends a ratio of 1 part sugar to 4 parts water. Too little or too much sugar can cause nectar to go bad faster.
Making a large batch vs small batch
Small batches of nectar will stay fresher longer than large batches. Make only what will be consumed within a 3-4 day period.
Frequency of refilling
Topping off feeders rather than fully changing the nectar will decrease how long the nectar stays fresh. Fully empty, clean, and refill feeders every 2-3 days for maximum freshness.
Amount of feeding activity
The more hummingbirds visiting a feeder, the faster the nectar is consumed which decreases time it sits and spoils. Less activity means nectar remains longer before being fed on.
Signs Nectar Has Spoiled
Here are some signs it’s time to change out old nectar:
- Cloudy appearance
- Moldy residue
- Fermented smell like wine
- Discolored nectar
- Slimy texture
- Decreased feeding activity
Never let nectar sit so long it becomes thick, chunky, or ropey as fermentation has definitely occurred at this point.
Tips to Extend Nectar Life
Here are some helpful tips to keep Perky-Pet nectar fresh and extend time between changes:
- Make small batches
- Keep nectar cool and in the shade
- Change nectar every 2-3 days in hot weather
- Change nectar every 5-7 days in mild temperatures
- Use clean feeders
- Use proper sugar concentration
- Refrigerate unused concentrate after opening
- Replace nectar at first signs of spoilage
- Consider using preservatives
Using Preservatives
Some people opt to use preservatives to extend the life of homemade nectar. This can be risky, as the wrong preservatives or improper doses may harm hummingbirds. Only food-grade preservatives designed for nectar are recommended:
- Ascorbic acid (vitamin C) – 1/16 tsp per cup of nectar
- Citric acid – 1/8 tsp per cup of nectar
- Sodium benzoate – a few grains per cup
Never use table sugar substitutes, honey, or artificial sweeteners in hummingbird nectar.
Storing Leftover Nectar
Any unused nectar can be stored in the refrigerator for up to 1 week. Use a tight sealing container. Discard any nectar that shows signs of fermentation or spoilage. Never leave nectar sitting at room temperature if you won’t use it within 3-4 days.
Conclusion
With proper storage, preparation and care, Perky-Pet’s hummingbird nectar can stay fresh anywhere from 3 days to 2 weeks. The ideal time frame is 2-5 days for peak nutrition and flavor. Monitoring temperatures, sunlight exposure, batch size, and feeder cleanliness are the best ways to maximize nectar life. Changing the nectar frequently ensures hummingbirds have access to high quality nutrition all season long.
