Emulsified shortening is regular shortening with added emulsifiers, compounds that help fat blend more evenly with water, sugar, and flour. A typical emulsified shortening contains 5 to 8 percent mono- and diglycerides along with other emulsifying agents, compared to zero in standard shortening like basic Crisco. This difference sounds small, but it fundamentally changes how the fat behaves in batters, doughs, and frostings.
If you’ve seen it called “high-ratio shortening,” that’s the same product. The name comes from its ability to handle high-ratio cakes, where the weight of sugar equals or exceeds the weight of flour. Standard shortening can’t hold those formulas together reliably. Emulsified shortening can.
How It Differs From Regular Shortening
All shortening is solid fat at room temperature. What makes emulsified shortening special is its ability to disperse evenly through a batter and trap far more air during mixing. The emulsifiers create a specific crystal structure (sometimes called an alpha-gel phase) that forms thin, elastic films at the boundary between fat and water. These films trap air bubbles and hold them stable, even as the batter heats up in the oven.
The most common emulsifiers added to shortening are monoglycerides and diglycerides, but manufacturers also use lecithin, propylene glycol esters, polysorbate 60, and sodium stearoyl lactylate. A published formulation for a typical multipurpose emulsified shortening shows about 6.2% monoglycerides and diglycerides, 4% triglycerol monostearate, 1.3% polysorbate, and 1% lecithin. You don’t need to memorize those names. The practical effect is that the fat plays nicer with water and distributes itself more thoroughly through whatever you’re making.
What It Does in Cakes
The primary reason emulsified shortening exists is cakes. Specifically, high-ratio cakes where the sugar content meets or exceeds the flour by weight. These recipes produce an exceptionally fine, tight, moist crumb, the kind you’d find in a professional bakery cake. But they only work if the fat can disperse evenly enough to support that much dissolved sugar without the batter breaking.
Regular shortening or butter in these formulas tends to separate or produce a coarse, uneven texture. Emulsified shortening solves this by distributing fat in tiny, uniform droplets throughout the batter. This even distribution does several things at once: it creates a more uniform network of air cells, it coats flour proteins and starch granules more thoroughly, and it locks in moisture. The result is a cake that rises higher, has a softer and more consistent crumb, and stays moist longer on the shelf.
Research on cake formulations has shown that emulsified fats allow bakers to actually use less total fat while achieving the same or better texture, because the fat that’s present works more efficiently. The emulsifiers help the functional ingredients disperse more completely than they would in a solid shortening without them.
Why Frosting Decorators Rely on It
Emulsified shortening is equally important in professional frostings and icings. It produces buttercream that is creamier, smoother, and brighter white than what you get with regular shortening. It also holds up better in warm temperatures, which matters enormously for wedding cakes, outdoor events, or anyone working in a warm kitchen.
Because of its superior creaming ability, emulsified shortening whips more air into frosting, giving it a lighter texture and more volume. Frostings made with it also tend to “crust,” forming a thin, dry film on the surface that lets decorators smooth cakes with tools or paper towels without tearing the surface. This crusting quality is a major reason cake decorators specifically seek out high-ratio shortening rather than using standard brands.
Shortening-based frostings also pipe more cleanly than butter-based ones. Butter softens quickly from the heat of your hands, causing piped details to lose definition. Emulsified shortening stays firmer across a wider temperature range, keeping roses, borders, and lettering crisp.
Common Brands
The most widely recognized emulsified shortening in the baking world is Sweetex, made in a golden cake-and-icing formulation. Alpine Soy Flex is another professional option, a soybean-based icing shortening marketed as zero grams trans fat with no tropical oils. Other names you’ll encounter include BBS Soy Flex, Eleven o’One, and Sweet Shoppe. Most of these come in 50-pound cases aimed at commercial bakeries, though smaller quantities are available online or through specialty baking suppliers.
Standard Crisco is not emulsified. It works fine for pie crusts, cookies, and frying, but it won’t perform the same way in high-ratio cakes or produce the same smooth frosting texture. If a recipe calls for high-ratio or emulsified shortening, regular Crisco is not a direct substitute.
Substitution Options
If you can’t find emulsified shortening, your best workaround depends on what you’re making. For frosting, regular shortening will work in a pinch but produces a slightly grainier texture. Some bakers add a small amount of liquid lecithin (available at health food stores) to regular shortening to approximate the emulsifying effect, though the results won’t be identical.
Butter can replace emulsified shortening in many recipes, but the swap isn’t one-to-one. Butter contains about 80% fat and 15 to 20% water, while shortening is nearly 100% fat. To match the fat content, use roughly 1.25 times as much butter by weight. Keep in mind that butter will also change the color (more yellow), the flavor (more dairy-forward), and the heat stability (less resilient in warm conditions).
For high-ratio cakes specifically, there’s no true substitute. The whole point of the formula is that the emulsified fat enables a ratio of ingredients that wouldn’t otherwise hold together. If you swap in regular shortening or butter, you’ll likely need to reduce the sugar or adjust other ingredients, which means you’re no longer making a high-ratio cake.
Effects on Bread and Dough
While cakes and frostings get most of the attention, emulsified shortenings also play a role in bread baking. The emulsifiers strengthen gluten structure, improve how dough handles during shaping and proofing, and help retain the gas produced by yeast. This translates to better oven spring, higher loaf volume, and a softer texture that lasts longer before going stale. Commercial pan breads almost universally contain some form of emulsifier for exactly these reasons.
Trans Fat and Modern Formulations
Older shortening products, including emulsified versions, relied heavily on partially hydrogenated oils, which are the primary source of artificial trans fats. That’s largely changed. The FDA effectively banned partially hydrogenated oils from the U.S. food supply, and modern emulsified shortenings are now formulated with fully hydrogenated or interesterified fats, palm oil, or soybean oil blends. Products like Alpine Soy Flex are specifically marketed as zero grams trans fat. If you’re buying from a current manufacturer, trans fat content is no longer the concern it was a decade ago, but checking the label is still worthwhile if the product has been sitting on a store shelf for a while.