Sour cherries have a short harvest window of just two to three weeks, so preserving them quickly is the best way to enjoy that tart flavor year-round. The most common methods are freezing, water bath canning, dehydrating, and preserving in alcohol. Each approach works well for sour cherries because their natural acidity (pH 3.2 to 4.1) makes them safe and easy to process at home.
Prep Steps Before You Start
No matter which preservation method you choose, the basics are the same: wash, stem, and pit your cherries. Look for bright red, fully tree-ripened fruit. Plan on roughly 2 to 2½ pounds of unpitted sour cherries for every quart you want to preserve.
Sour cherries are less prone to browning than sweet varieties, but if you’re working through a large batch and your pitted cherries will sit for a while, a simple holding solution prevents darkening. Mix half a cup of bottled lemon juice into 2 quarts of cold water and drop your pitted cherries in as you work. Alternatively, dissolve 1 teaspoon of pure ascorbic acid (vitamin C powder) in a gallon of cold water and soak the fruit for 10 minutes. Drain before packing.
Freezing: The Easiest Method
Freezing is the fastest way to preserve sour cherries and keeps their flavor closest to fresh. You have three options depending on how you plan to use them later.
Sugar Pack
This is the go-to method for pie filling and baking. For every quart of pitted cherries (about 1⅓ pounds), add ¾ cup of sugar. Stir gently until the sugar dissolves and the cherries release some juice, then pack into freezer-safe containers. Leave about half an inch of headspace at the top to allow for expansion.
Syrup Pack
A syrup pack works well if you want cherries for spooning over desserts or eating on their own. Make a heavy syrup by dissolving equal parts sugar and water (a 50 percent syrup). Pack cherries into containers and pour cold syrup over them, leaving headspace. This gives a softer, more dessert-ready texture after thawing.
Dry Pack (No Sugar)
If you want maximum flexibility, freeze cherries without any sweetener. Spread pitted cherries in a single layer on a parchment-lined baking sheet and freeze until solid, usually one to two hours. Then transfer them to freezer bags, pressing out as much air as possible. The tray step keeps the cherries from clumping into one solid block, so you can grab a handful at a time. Frozen sour cherries hold their quality for 8 to 12 months.
Water Bath Canning
Canning gives you shelf-stable jars that don’t need freezer space. Sour cherries are naturally acidic enough for safe water bath canning, so you don’t need a pressure canner.
You can pack cherries in water, fruit juice, or a sugar syrup. A light syrup (about 2 cups sugar to 5 cups water) complements sour cherries nicely, but plain water works fine if you want to control sweetness later. Pitting is optional for canning. Unpitted cherries hold their shape better, though pitted cherries are more convenient to use straight from the jar. If you leave the pits in, prick each cherry with a clean pin to prevent splitting during processing.
Hot Pack
Add half a cup of your chosen liquid for each quart of drained cherries in a large saucepan. Bring to a boil, then fill jars with the hot cherries and cooking liquid, leaving half an inch of headspace. Process pint jars for 15 minutes and quart jars for 20 minutes in a boiling water bath (at elevations below 1,000 feet). If you live at higher elevations, add 5 minutes for each elevation bracket up to 6,000 feet, and 10 minutes above that.
Raw Pack
Pour half a cup of hot liquid into each jar, then fill with raw cherries, shaking the jar gently to settle them. Add more hot liquid to maintain half an inch of headspace. Raw pack takes a bit longer to process: 25 minutes for both pints and quarts at low elevations. The raw pack method is simpler, though the fruit tends to float more in the jars and may darken slightly at the top.
Properly sealed canned cherries are best used within a year and remain safe to eat as long as the vacuum seal stays intact.
Dehydrating
Dried sour cherries are intensely flavored and take up very little storage space. They’re perfect for snacking, trail mixes, granola, and baking.
Pit the cherries and cut them in half to speed drying. Set your dehydrator or oven to 140°F (60°C). Arrange the halves cut-side up on trays in a single layer with space between each piece for airflow. Drying takes anywhere from 8 to 16 hours depending on the size of the fruit, your equipment, and humidity. If using an oven, prop the door open slightly to let moisture escape.
Cherries are done when they feel tough, leathery, and just slightly sticky. They should bend without snapping but not feel squishy or wet. After drying, let them cool completely, then condition them: pack loosely into a glass jar, seal it, and shake the jar once a day for about a week. If you see any condensation inside the jar, put the cherries back in the dehydrator for more time. Once conditioned, store in airtight containers in a cool, dark spot. They’ll keep for several months at room temperature and up to a year in the freezer.
Preserving in Alcohol
Soaking sour cherries in sweetened spirits was one of the oldest preservation methods, used long before home canning was common. The combination of high sugar and high alcohol content keeps the fruit safe at room temperature for months. Brandied sour cherries develop a rich, complex flavor that only improves with age.
A standard ratio uses 1 pound of cherries, 2 cups sugar, 1 cup water, and 1 cup brandy. Start by making a simple syrup: heat the sugar and water until the sugar dissolves, then let it cool. Pack your pitted cherries into a clean glass jar (a split vanilla bean is a common addition), pour the cooled syrup over them, then add the brandy. The liquid should fully cover the fruit. Seal the jar and store it in a cool, dark cupboard.
Let the cherries age at least six weeks before opening, shaking the jar periodically to distribute the flavors. Historically, cooks would put up cherries in summer and save them for the holidays. These don’t really go bad since the alcohol acts as a preservative, but the flavor peaks somewhere between two and six months. Use them over ice cream, in cocktails, alongside cheese boards, or folded into chocolate desserts.
Choosing the Right Method
- For baking: Freezing with a sugar pack or dry pack gives you the closest thing to fresh cherries when pie season rolls around.
- For shelf-stable storage without a freezer: Water bath canning keeps jars ready in the pantry for up to a year.
- For compact, long-term storage: Dehydrating reduces bulk dramatically and produces a versatile ingredient.
- For a special treat: Brandied cherries require no special equipment and reward patience with deep, layered flavor.
Sour cherries are among the most forgiving fruits to preserve at home. Their natural tartness and low pH mean you don’t need to worry about adding acid for safety, and their bold flavor holds up well across every method. The biggest challenge is simply getting enough of them before the season ends.