Fruits
Sweet Potato Purée in gelato
Sweet potato purée is cooked, mashed Ipomoea batatas root used as a vegetable base in gelato. It contributes roughly 21% total solids, natural sweetness, a smooth starchy body, and an earthy-sweet flavor, functioning as both a flavor and a bulking/texturizing ingredient.
Balancing parameters
Per 100 g of product, verified against independent food-science sources (listed below).
| Parameter | Value |
|---|---|
| Total Solids | 21% |
| Water | 79% |
| Sugars | 5.5% |
| Fat | 0.1% |
| MSNF | 0% |
| Protein | 1.5% |
| POD (sweetening power) | 4.9 |
| PAC (anti-freezing power) | 6.9 |
Typical use: 15-25% of the total mix
Balance sweet potato purée in a real recipe
Free balancer · no signup wall · watch PAC, POD and Total Solids update live as you add it.
Open the balancerHow to use it in gelato
Use pre-cooked (steamed, boiled, or roasted) and finely puréed; raw sweet potato cannot be balanced correctly because its free-sugar content is much lower and its starch is un-gelatinized. At around 21% solids and only ~5.5% sugars, the purée adds substantial non-sugar solids (starch), so it firms body and can raise viscosity, but its own sweetening power (POD ~5) is modest, so recipe sucrose/dextrose must supply most sweetness. Its PAC (~7 per 100g of purée) is moderate and skewed by cooking-derived reducing sugars (glucose, fructose, maltose), so it lowers freezing point slightly more than its sugar mass alone would suggest. The starch also binds water, which helps scoopability but can read as gummy if overdosed. Roasting concentrates solids and sugars for a deeper, sweeter result; boiling gives a lighter, wetter purée.
Origin & background
The sweet potato (Ipomoea batatas) was domesticated in Central and South America several thousand years ago and later spread across Asia and the Pacific. It is central to Japanese confectionery (satsumaimo and purple beni imo), which drove its adoption in premium Asian-style gelato. Cooking transforms its sugar profile: research shows maltose is nearly undetectable in the raw root but becomes the dominant sugar after baking, as heat-activated beta-amylase breaks starch down (Wang et al., PMC4252450), explaining why cooked sweet potato tastes markedly sweeter than raw.
Frequently asked questions
Sources
- USDA FoodData Central, SR Legacy: Sweet potato, cooked, boiled, without skin (FDC ID 170541) — per 100g: water ~80g, total sugars 5.7g, protein ~1.4g, total fat 0.14g. Rendered at https://www.nutritionvalue.org/Sweet_potato%2C_without_skin%2C_boiled%2C_cooked_nutritional_value.html
- USDA FoodData Central rendering (Triage Method / FSANZ AFCD cross-check), Sweet potato, cooked, boiled, without skin: water ~81g, total carb 17.7g, total sugars 5.7g, protein 1.5g, fat 0.14g, fiber ~2g. https://triagemethod.com/tools/human-nutrition-explorer/food/sweet-potato-cooked-boiled-without-skin.html
- USDA FoodData Central: Sweet potatoes, raw (FDC ID 168482) — per 100g: water 77.3g, total sugars 4.18g, protein 1.57g, fat 0.05g (shows the cooked vs raw sugar difference). https://tools.myfooddata.com/nutrition-facts/168482/wt1
- Wang S. et al., 'Changes in sugar composition during baking and their effects on sensory attributes of baked sweet potatoes,' J Food Sci Technol (PMC4252450): cooked sweet potato total sugars 5.64-7.33%, with sucrose 0.62-2.42%, glucose 0.12-0.54%, fructose 0.05-0.35%, maltose 2.86-5.43% (maltose becomes dominant after cooking). https://pmc.ncbi.nlm.nih.gov/articles/PMC4252450/