You can make sugar from fruit by dehydrating high-sugar fruits and grinding them into a powder. The result isn’t the pure white crystals you’d buy in a bag, but a whole-fruit sweetener that retains fiber, minerals, and natural flavor. Dates, grapes, and bananas are the most popular starting points, and the basic process requires nothing more than an oven or dehydrator and a blender.
Which Fruits Work Best
Not all fruits have enough sugar to produce a useful sweetener. The key measurement is Brix, a scale that indicates what percentage of a fruit’s juice is dissolved sugar. Grapes range from 15 to 26 Brix, making them one of the highest-sugar fresh fruits available. Most other common fruits rarely exceed 16 Brix. Dates, however, are in a league of their own: on a dry-weight basis, they contain 60 to 75% total sugars. That concentration is why date sugar is the most common homemade fruit sugar.
Bananas, figs, and mangoes also work, though their lower sugar density means you’ll get a milder sweetener. Apples and pears are better suited for making syrup than powder because their sugar content is lower and their flesh doesn’t dry as cleanly.
Making Date Sugar at Home
Date sugar is simply dried dates ground into granules. It’s the easiest fruit sugar to make because dates are already semi-dry and packed with sugar. Here’s the process:
- Pit and slice. Cut each date in half lengthwise and remove the pit. Slice them into thin, uniform pieces so they dry evenly.
- Dehydrate. Spread the slices on a baking sheet or dehydrator tray in a single layer. Research on date dehydration found that 70°C (about 158°F) is the optimal temperature, balancing drying speed with nutrient preservation. In a home oven, set it to the lowest temperature (usually 170–200°F) and prop the door open slightly for airflow. In a dehydrator, use a similar setting. Drying can take anywhere from 8 to 24 hours depending on your equipment and the moisture level of your dates.
- Test for dryness. The pieces should snap cleanly when bent, with no flexibility or stickiness. Any remaining moisture will cause clumping later.
- Grind. Let the dried pieces cool completely, then pulse them in a food processor or high-speed blender. You’re aiming for a coarse, sand-like texture. Don’t over-process or the natural oils and residual moisture will turn the powder into a paste.
One important thing to know: date sugar doesn’t dissolve the way white sugar does. It’s ground whole fruit, so it works beautifully sprinkled on oatmeal, blended into smoothies, or used in baking where texture isn’t critical. It won’t melt into your coffee or caramelize in a crème brûlée.
Making Fruit Sugar From Grapes and Bananas
The process for other fruits follows the same logic but requires more patience. Grapes and bananas have higher moisture content than dates, so the drying stage takes longer.
For grapes, slice them in half and dehydrate at 135–160°F until they’re completely brittle, not chewy like raisins. This can take 24 to 48 hours in a dehydrator. Once they snap rather than bend, grind them into powder. Grape sugar has a slightly tangy, wine-like sweetness.
For bananas, slice them as thinly as possible (an eighth of an inch or less) and dry at the same temperature range. Fully dehydrated banana chips should shatter when you break them. The resulting powder tastes distinctly like banana, which works well in baking but limits its versatility as a general sweetener.
Making Fruit Syrup Instead
If you want a liquid sweetener rather than a powder, fruit syrup is more forgiving and works with a wider range of fruits. Juice your fruit (apples, grapes, and pears all work well), strain out any pulp, and simmer the juice in a heavy-bottomed pot over low to medium heat. You’re evaporating the water to concentrate the sugars.
Commercial producers use vacuum evaporation at temperatures as low as 65°C (149°F) to prevent browning and off-flavors. At home you don’t have that option, so keep the heat gentle and stir frequently. Reduce the juice to about one-quarter of its original volume. The syrup will thicken further as it cools. For apples, this is essentially how traditional apple molasses is made throughout the Middle East and Appalachia.
Grape syrup, sometimes called grape molasses or pekmez, is made the same way and has been a staple sweetener in Turkey and the Mediterranean for centuries. Starting with high-Brix grapes (the sweeter the better) gives you a richer, more concentrated result.
Can You Crystallize Fruit Sugar?
Getting actual sugar crystals from fruit juice is technically possible but impractical at home. The sugars in fruit are primarily fructose and glucose rather than sucrose, and fructose is notoriously difficult to crystallize. It stays liquid at room temperature and absorbs moisture from the air. Industrial producers use chromatographic separation, enzyme treatments, and precise temperature controls to isolate and crystallize individual sugars from fruit juice. None of that translates to a kitchen setting.
If you’re after crystals, the closest you can get at home is cooking fruit juice down to a very thick syrup (around 230°F or 110°C on a candy thermometer), spreading it thin on parchment, and letting it dry into a brittle sheet you can break and grind. The result is more like rock candy than granulated sugar, and it will soften quickly in humid conditions.
Nutritional Differences From White Sugar
Refined white sugar is 99% sucrose with virtually no vitamins, minerals, or fiber. Fruit sugar retains the nutrients of the whole fruit, which is its main selling point. Date sugar, for example, contains 5 to 8% fiber by dry weight. Eating 100 grams of dates provides roughly 15% of the recommended daily allowance for several minerals, including potassium, magnesium, iron, calcium, and copper. Those nutrients carry over into date sugar since you’re consuming the entire fruit in powdered form.
That said, fruit sugar is still sugar. Your body processes the fructose and glucose the same way regardless of whether it came from a date or a sugar bowl. The fiber in whole-fruit sweeteners slows absorption slightly compared to refined sugar, but the calorie count is similar. Treat fruit sugar as a more flavorful, marginally more nutritious alternative, not a health food.
Storage Tips
Homemade fruit sugar is hygroscopic, meaning it pulls moisture from the air much more aggressively than white sugar. Store it in an airtight container in a cool, dry place, away from heat sources like stoves or vents. A moisture-absorbing packet (the small silica gel packets that come in shoe boxes) placed inside the container helps prevent clumping over time.
If your fruit sugar does clump, spread it on a baking sheet and dry it in a low oven for 20 to 30 minutes, then re-grind. Fruit syrups should be refrigerated and will keep for several months. For longer storage, fruit sugar powder can be frozen in a sealed container, though you should let it come to room temperature before opening to avoid condensation.