The usual no-churn ice cream recipe
Most no-churn ice cream recipes follow the same pattern. Eagle Brand’s own recipe folds one 14 oz can of sweetened condensed milk into 2 cups of heavy cream whipped to firm peaks, then adds flavoring. It lists 15 minutes of prep, a freeze of at least 6 to 8 hours, and a yield of 1 1/4 quarts.
Our no-churn base formula uses the same idea by weight: 45.48% condensed milk to 54.52% heavy cream, based on a 397 g can. It is a base formula built on standard food-science ranges, not a tested recipe. The “Open the no-churn base” button under the intro loads it, and “Scale a recipe” resizes it for a bigger or smaller batch. The calculators run in your browser, and the numbers you type are not sent to our server.
The steps are simple:
- Chill the cream, then whip it to firm peaks.
- Stir your flavoring into the condensed milk.
- Fold the whipped cream into the condensed milk gently, so you keep as much air as you can.
- Spread it in a container, cover it, and freeze it.
What is actually in the can and the carton
The labels mean something specific. Under federal standards (21 CFR), sweetened condensed milk must have at least 8% milkfat by weight and at least 28% total milk solids, plus enough sweetener to keep it from spoiling. Heavy cream must be at least 36% milkfat. Light whipping cream falls between 30% and 36%, and half-and-half between 10.5% and 18%.
USDA FoodData Central gives this composition per 100 g:
| Ingredient | Water | Fat | Sugars | Protein |
|---|---|---|---|---|
| Sweetened condensed milk | 27.16 g | 8.7 g | 54.4 g | 7.91 g |
| Heavy whipping cream | 57.71 g | 36.08 g | not listed here | not listed here |
Condensed milk is more than half sugar and has little water. Cream is mostly water and fat. Together they make a mix that is rich in both sugar and fat.
Why condensed milk ice cream freezes soft
No primary food-science source we use describes “no-churn” by name. The explanation below is our reading, put together from the University of Guelph Ice Cream Technology e-Book (on sugar, air and fat), the federal ingredient definitions, and the Eagle Brand recipe. Treat it as a reasoned explanation, not a published study.
Sugar keeps part of the water liquid
The Guelph e-Book explains that dissolved sugars lower the freezing point of water. At normal freezer temperatures, some of the water in ice cream never freezes. That is why ice cream bends under a scoop instead of shattering. The e-Book says that at -16°C only about 72% of the water in ice cream is frozen.
Guelph also gives a target: sweeteners usually make up 12 to 16% of an ice cream mix by weight. With too little sugar, too little water stays unfrozen, and the ice cream is too hard to scoop at -15 to -18°C.
By our arithmetic from the USDA figures, our 45.48 to 54.52 base comes out at roughly 25% sugar and roughly 24% fat by weight. That sugar level is well above the range Guelph gives for churned mixes. Our reading is that this extra sugar is a large part of why condensed milk ice cream stays scoopable without any stirring.
Whipped cream supplies the air
The Guelph e-Book notes that ice cream can be up to half air by volume, and that air is what separates ice cream from a frozen block. In a machine, a dasher beats air in while the mix freezes. In no-churn, you add the air first, by whipping the cream before anything goes near the freezer.
Fat holds the air in place
The e-Book compares the structure ice cream builds while it freezes to whipped cream: fat globules partly clump together and surround air bubbles. Whipping cream builds a similar fat-and-air foam by a different route. It happens in your bowl instead of in the machine.
Milk solids help with iciness
According to Guelph, milk proteins hold water and reduce iciness, and the milk solids-not-fat bring both protein and lactose. Condensed milk appears in the e-Book’s list of acceptable sources of those solids.
The limits of no-churn
Texture can turn coarse
The Guelph e-Book explains that ice crystal size depends on how fast the mix freezes. Slow freezing makes larger crystals. A home freezer chills much more slowly than the scraped-surface freezer in an ice cream machine. Our inference is that this is the likely reason no-churn ice cream is more prone to a coarse or icy texture. The e-Book itself does not discuss no-churn.
It is very sweet and very rich
The high sugar that keeps it soft also makes it taste sweet. By our arithmetic, both the sugar and the fat in the base sit at a high level. You can balance the sweetness with bitter or tart flavors, such as coffee, dark chocolate or a fruit swirl. That is a suggestion, not a rule from a source.
It gets icier in storage
Guelph describes heat shock. When ice cream warms a little, small ice crystals melt. When it refreezes, that water joins larger crystals. Each warm-and-refreeze cycle makes the texture icier, and this applies to no-churn as well. Some ways to slow it down:
- Keep the container at the back of the freezer, not in the door.
- Put it back right after scooping.
- Freeze in shallow containers you can use up in one or two sittings.
These are practical suggestions.
No stabilizer unless you add one
Commercial ice cream usually contains a stabilizer. The Guelph e-Book says a stabilizer slows ice recrystallization during storage. A standard no-churn recipe has none unless you add one. Our stabilizers guide covers that option.
Shelf life is not documented
The Cuisinart ICE-21 booklet uses 0°F (-18°C) as the home freezer temperature. The sources we use do not give a shelf-life figure for no-churn ice cream, so we do not give one here either.
FAQ
Why does no-churn ice cream need sweetened condensed milk?
Its high sugar content lowers the freezing point, so part of the water stays liquid and the ice cream stays scoopable. It also adds milk solids, which help reduce iciness.
Can I use light whipping cream or half-and-half instead of heavy cream?
Our base formula and the Eagle Brand recipe both use heavy cream, which must be at least 36% milkfat. Light whipping cream (30% to under 36%) and half-and-half (10.5% to under 18%) have less fat, and the sources we use do not cover how they behave in this method.
How long does no-churn ice cream take to freeze?
Eagle Brand’s recipe says to freeze it for at least 6 to 8 hours.
Why did my no-churn ice cream turn icy?
A home freezer freezes slowly, which favors larger ice crystals. Temperature swings during storage also make the crystals grow, so the texture gets icier every time the ice cream warms and refreezes.
How long does no-churn ice cream keep?
The sources we use do not give a shelf-life figure for no-churn ice cream. Keeping it at a steady 0°F, away from the freezer door, helps slow the drift toward ice.