Squash is a versatile vegetable that can last for varying amounts of time depending on the type of squash and how it is stored. With proper storage methods, most winter squash varieties can last for several months. Summer squash is more perishable but can still keep for 1-2 weeks. Read on to learn more about how long different types of squash will last and the best ways to extend their shelf life.
Winter Squash Storage Life
Winter squash varieties, including acorn squash, butternut squash, spaghetti squash, and pumpkin, tend to have a long storage life. The thick rinds and lower moisture content allow them to keep for several weeks to months after harvest under proper storage conditions. Here is an overview of how long common winter squash types can last:
- Acorn squash – 2 to 3 months
- Butternut squash – 2 to 3 months
- Spaghetti squash – 2 to 3 months
- Pumpkin – 2 to 3 months
- Hubbard squash – 3 to 6 months
- Kabocha squash – 2 to 3 months
- Delicata squash – 2 to 3 months
The optimal storage temperature for winter squash is between 50-55°F. Storing them in a cool, dark place such as a basement or root cellar provides the ideal conditions to maximize their shelf life. The squash should also have good airflow around them and should not be stored near ethylene-producing fruits like apples which can cause them to spoil faster.
Storing Cut Winter Squash
Once winter squash has been cut open, it will not last as long – but can still keep for a week or two. Leave the seeds in and store cut squash in an airtight container in the refrigerator. Cut squash should keep for about 1-2 weeks in the fridge.
Summer Squash Storage
Summer squash varieties like zucchini, yellow squash, and pattypan squash have a shorter shelf life than winter squash. They have thin skins and higher moisture content, making them prone to quicker spoilage. On average, summer squash will last:
- Zucchini – 3 to 5 days
- Yellow squash – 5 to 7 days
- Pattypan squash – 4 to 7 days
Store whole unwashed summer squash in perforated plastic bags in the refrigerator to help extend their life by a few days. Do not wash summer squash until you are ready to use them, as moisture speeds up spoilage.
Storing Cut Summer Squash
Once cut, summer squash will only last about 1-2 days in the fridge. Keep cut zucchini and yellow squash in an airtight container and aim to use within 48 hours for best quality.
Freezing Squash
Freezing is a great long-term storage method for squash. Both summer and winter varieties can be frozen for preservation. Here are some tips for freezing squash:
- Wash, dry and cut squash into desired sizes – try cubes, slices, or halves.
- Blanch the pieces for 1-2 minutes in boiling water or steam to stop enzyme activity.
- Cool the blanched pieces completely in an ice bath.
- Drain off excess water and pack into freezer bags or airtight containers, removing as much air as possible.
- Label bags with contents and date.
- Most frozen squash will last 8-12 months in the freezer before quality declines.
Properly frozen squash should retain its texture and flavor when thawed and cooked. Thaw frozen squash in the refrigerator before using in recipes.
How to Tell if Squash Has Gone Bad
Watch for these signs that indicate your squash has spoiled and should be discarded:
- Soft or shriveled skin – Fresh squash should have firm, taut skin. Wrinkled skin means it’s past its prime.
- Moldy spots – Small spots of fuzzy mold indicate rotting has begun.
- Slimy texture – Slime on the surface or a mushy water-logged texture means it’s spoiled.
- Unpleasant odor – Squash should smell fresh. A sour or rotten smell means toss it.
If the squash has any of these characteristics, it has likely spoiled due to fungi or bacteria and should be thrown out. When in doubt, remember it’s better to be safe than sorry and not risk eating spoiled squash.
How to Store Squash to Maximize Freshness
Proper storage methods allow squash to last as long as possible after harvest. Here are some tips for storing squash:
- Store squash whole and uncut in a cool, dark place around 50-55°F like a basement or cellar.
- Do not wash squash until ready to use.
- Keep squash dry – wipe dirt off gently with a soft cloth.
- Allow space between squash for airflow.
- Check periodically and remove any spoiled squash.
- Move squash to the refrigerator once cut open.
- Store cut squash in airtight containers.
- Consider freezing for long-term storage.
Following these guidelines will help your squash stay fresh and flavorful for as long as possible after purchasing.
| Squash Type | Whole & Uncut | Cut |
|---|---|---|
| Winter (acorn, butternut, etc) | 2 to 6 months | 1 to 2 weeks |
| Summer (zucchini, yellow) | 3 to 7 days | 1 to 2 days |
Conclusion
Squash can last anywhere from a few days to several months depending on the type, whether it’s whole or cut, and how it is stored. To get the longest shelf life out of your squash, store whole uncut winter squash for 2-6 months in a cool cellar or basement. Use summer squash within a week and cut squash within 2 days. Freezing also extends the shelf life significantly. With proper storage, squash can retain its fresh taste and texture for your enjoyment in a variety of delicious recipes.