Unsweetened condensed milk is simply another name for evaporated milk. It’s regular cow’s milk with about 60% of its water removed through a slow heating process, leaving behind a thick, creamy liquid with no added sugar. The term exists because “condensed milk” on its own almost always refers to the sweetened version, so “unsweetened condensed milk” is the way to specify the sugar-free product. If a recipe calls for unsweetened condensed milk, reach for a can of evaporated milk.
Why Two Names for the Same Product
The naming confusion comes from how these products evolved. Both evaporated milk and sweetened condensed milk start the same way: fresh milk is heated until roughly half the water evaporates. The difference is that sweetened condensed milk has 40 to 45 percent sugar added during processing, which acts as a preservative and makes it thick, syrupy, and intensely sweet. Evaporated milk skips the sugar entirely and is instead sterilized through high heat, which gives it a long shelf life without needing sweetener.
In grocery stores, you’ll find the product labeled as “evaporated milk,” not “unsweetened condensed milk.” But in recipes, cookbooks, and international sources, the term “unsweetened condensed milk” appears frequently enough to cause confusion. They are the same thing.
How Evaporated Milk Is Made
Fresh milk is about 87% water. To make evaporated milk, manufacturers heat it under vacuum conditions, which allows the water to evaporate at lower temperatures and preserves more of the milk’s nutritional value. About 60% of the water is removed, leaving a concentrated liquid that’s roughly twice as rich as regular milk. The process also lightly caramelizes the natural milk sugars (lactose), giving evaporated milk a faint golden color and a subtly sweet, toasted flavor that fresh milk doesn’t have.
After concentration, the milk is homogenized, sealed in cans, and heat-sterilized. This is what allows it to sit on a pantry shelf for months without refrigeration.
How It Differs From Sweetened Condensed Milk
The gap between the two products is dramatic once you look at the sugar content. A single ounce of sweetened condensed milk contains over 15 grams of sugar, while the same amount of evaporated milk has just over 3 grams, all from naturally occurring lactose. That makes sweetened condensed milk roughly five times sweeter. It’s also noticeably thicker and stickier, closer to caramel sauce in consistency, while evaporated milk pours freely like heavy cream.
Because of these differences, you cannot swap one for the other in recipes without adjusting sugar and liquid levels significantly. Sweetened condensed milk is a dessert ingredient. Evaporated milk works across both sweet and savory cooking.
Nutrition at a Glance
Evaporated milk is essentially concentrated whole milk, so it delivers about twice the protein, fat, and calcium per tablespoon compared to regular milk. Under U.S. federal standards, evaporated milk must contain at least 6.5% milkfat and at least 23% total milk solids by weight. For comparison, regular whole milk has about 3.3% fat. That concentration makes evaporated milk a useful way to add creaminess and nutrients to dishes without adding a large volume of liquid.
Cooking With Evaporated Milk
The creamy texture and mild caramelized flavor make evaporated milk a versatile ingredient. In desserts, it’s a staple in pumpkin pie, flan, and rice pudding, where it adds richness without the cloying sweetness of its sugared counterpart. On the savory side, it works well in pasta sauces, gratins, and creamy soups like clam chowder or broccoli cheese soup, adding body and depth. You can also stir it into coffee, blend it into smoothies, or whip it into a frothy topping for hot drinks.
If you want to use evaporated milk as a stand-in for regular milk in cooking, Nestlé recommends a 1:1 substitution. Keep in mind, though, that evaporated milk has about double the fat and more than double the lactose concentration of regular milk. In beverages, sauces, and soups, this usually just makes the result richer. In baked goods where structure matters (cakes, muffins, bread), those differences can affect texture and browning, so results may vary.
Making It at Home
You can make your own evaporated milk on the stove with nothing but fresh milk and patience. Pour milk into a wide, heavy-bottomed saucepan and bring it to a gentle simmer over medium heat. Reduce the heat to low and let it simmer uncovered, stirring frequently, for 25 to 40 minutes. The goal is to reduce the volume by about half. A wider pan speeds up the process because more surface area means faster evaporation. Don’t let it boil, or the milk may separate. Once cooled, homemade evaporated milk won’t be as smooth as the commercial version, but it works well in recipes.
Storage
Unopened cans of evaporated milk last for months in the pantry. Once you open a can, transfer any unused portion to an airtight container and refrigerate it. It stays good for about 4 to 6 days. If you notice any off smell, curdling, or discoloration, discard it. Homemade versions should be refrigerated immediately and used within a few days.