Shortening's 0% Water

Where butter is 18% water, shortening is 0% — and that's exactly why pastry made with shortening flakes the way butter pastry can't.

Shortening is 100% fat. No water, no milk solids, no salt. That single fact is the whole story of why your pie crust either shatters into layers or slumps into a greasy disc when you swap shortening for something else. Substituting it isn't really about flavor or richness — it's about whether the replacement fat keeps its shape long enough to laminate, and whether it carries water you didn't ask for. Get that physics right and the swap works. Get it wrong and the texture collapses before the oven door closes.

What breaks when you swap it

Open any home-baking forum thread about pie crust failures and a pattern emerges: the crust didn't flake. It tore in chewy strips, or it puddled into a uniform crumb, or it shrank during blind-baking and pulled away from the tin like it was trying to leave. These are all the same failure, and they all trace back to the same swap.

The data block flags this directly. Avocado oil: "No solid fat structure — pie crust won't be flaky." Cooking and salad oil: "Liquid oil — cannot cream for flaky pastry layers." Vegetable oil: "Liquid oil — won't produce flaky pie crust." Three different warnings, one underlying mechanism. Flake formation depends on discrete pieces of solid fat surviving the mixing stage and then melting in the oven, leaving behind air pockets the steam can inflate. A liquid oil can't survive mixing as a discrete piece — it disperses, coats every flour particle uniformly, and waterproofs the dough into a short, sandy crumb. That crumb has its own pleasures (it's how a Mediterranean olive-oil cake works), but it isn't pastry. The texture you wanted does not exist in the result you got.

The other texture warning comes from the opposite direction. Cream cheese: "Denser and tangier than shortening in pastry." Margarine: "Softer than shortening — chill dough before rolling." Both swaps preserve the solid-fat structure, but cream cheese drags water and protein along with it (a brick of cream cheese is roughly 33% fat and 50% water), and margarine has a lower melt point than shortening's roughly 117°F. The dough goes soft in your hands before you can roll it. The fat starts melting into the flour during the rest, not in the oven. Lamination collapses early. You still get layers, but they're sticky, dense, and uneven — not the dry, geological flakes a shortening crust gives you.

The third texture failure is subtler and shows up after baking: shrinkage. When the substitute fat carries water, that water hydrates the flour during mixing and develops gluten you didn't want. A shortening crust mixes fast and stays slack because shortening shortens — it physically interrupts gluten strands by coating proteins with fat. Swap to butter (18% water) without compensating, and that water joins the recipe's ice water in waking up the gluten. The crust shrinks 10-15% during baking, the edges retract, the bottom goes tough. You did everything else right and the geometry still betrayed you.

This is also why shortening's worst swap targets share a property — raw applicability scores 2.1 and drink scores 1.1, the lowest two use cases. Nobody wants to taste shortening; they want it to do its job and disappear. Substitutes that bring their own flavor (toasted oils, cultured fats, browned dairy) violate that contract. The texture failure shows up in baking applications precisely because that's where shortening's flavorlessness was load-bearing in the first place.

What this ingredient does

The history is the chemistry, so it's worth telling.

In 1907, Procter & Gamble's chemists were sitting on a problem and an opportunity. The problem: cottonseed oil, a byproduct of their cotton-soap business, had no real food market. The opportunity: a German chemist named Wilhelm Normann had patented a hydrogenation process in 1902 that could turn liquid vegetable oil into a solid fat at room temperature by saturating its double bonds with hydrogen gas. P&G bought the U.S. rights, ran the cottonseed oil through the reactor, and in 1911 launched the result as Crisco — short for crystallized cottonseed oil. It was the first commercial vegetable shortening, and it was sold to American home bakers as a clean, flavorless, snow-white substitute for the lard their grandmothers had used.

The marketing pitch told the truth. Hydrogenated vegetable oil is, structurally, a designed fat. The crystal structure that forms when you cool it produces what fat chemists call a plastic texture — solid enough to hold its shape, soft enough to deform under pressure without breaking. That plasticity is exactly what creaming requires. When you beat shortening into sugar, the sugar crystals' sharp edges scrape pockets of air into the fat, and the fat's plasticity holds those pockets stable until the leavening takes over in the oven. Butter does this too, but its narrow plastic range (it's too hard at 60°F and too soft at 75°F) makes it temperamental. Shortening's plastic range spans nearly 50°F. You can cream it from the back of the pantry without warming, and the air pockets stay put.

The second job follows from the first. Because shortening is anhydrous, it doesn't hydrate flour. When you cut shortening into flour for pie dough, you're physically isolating flour particles inside a fat coating — gluten can only form where two wet protein molecules meet, and a fat-coated protein meets nothing. The shorter the gluten strands, the more tender the crust. That's the etymology: shortening is the noun form of the verb to shorten, and what it shortens is gluten. Lard does this. Suet does this. Tallow does this. Hydrogenated vegetable oil does it without the animal flavor — that was the entire selling point in 1911 and it's still the reason a vegan biscuit recipe reaches for it today.

The third job is melt point. Shortening melts at roughly 117°F, well above body temperature and well above butter's 90-95°F. In a laminated dough, that high melt point means the fat layers stay discrete through the rolling and folding stages. They only melt once the oven gets hot enough to flash the trapped water into steam, and the steam blows the layers apart on its way out. A lower-melt-point fat would have leaked into the flour layers before the oven could do that work. The cathedral never gets built.

So shortening does three connected things: it provides a wide-plastic-range solid for creaming, an anhydrous medium for gluten interruption, and a high-melt-point laminating agent for flake formation. Almost every substitute fails at least one of those three. The good substitutes fail at most one and compensate elsewhere.

The swaps that work and why

Lard is the closest match by chemistry and the original it replaced. The data shows lard at function-match 66/100, ratio 0.875:1 — use 7/8 cup lard for every 1 cup shortening. The slightly lower ratio reflects lard's higher density and slightly more efficient gluten-shortening (lard's larger crystal structure produces longer flakes, so you need a bit less). The notes call out "exceptionally flaky pie crust" and "closest texture match, ideal for pastry" — both true. Lard is anhydrous, has a melt point near 95°F that's still high enough to laminate, and shortens gluten more aggressively than shortening does. The flavor is mild but present. If you're making a savory crust, lard is often the better choice; for a sweet crust where you want zero flavor interference, the original Crisco-style shortening still wins.

Butter is the most common swap and shows up three times in the data at function-match 66/100, with the lead entry suggesting 1.125:1 — use 1 and 1/8 cup butter per 1 cup shortening, the extra 1/8 cup compensating for butter's 18% water content. The math is direct: 1.125 cups butter × 0.82 fat = 0.92 cups fat (close enough to 1 cup of pure shortening's fat). The water that comes along becomes part of the recipe's hydration, so most experienced bakers reduce the recipe's added liquid by 2-3 tablespoons per cup of butter swap. Butter brings flavor, browning (from milk solids), and a tighter plastic range. Pie crusts made with butter taste better and flake less. For a deep dive on what butter's water and milk solids do to a recipe, the journal piece on butter is the long version of this paragraph.

Coconut oil matches at function-match 66/100, ratio 1:1, with the note "same solid texture, works well in baking." This is the substitute that surprises people. Coconut oil is roughly 90% saturated fat, anhydrous, and has a sharp melt point at 76°F — sharper than shortening, which transitions over a wider temperature range. That sharp melt point means coconut oil works beautifully for laminated doughs as long as your kitchen is below 76°F. Above that, it's a liquid and you've recreated the vegetable-oil failure. Most U.S. kitchens in summer are above 76°F. The flavor warning in the data — "adds mild coconut undertone" — is real for refined coconut oil and stronger for virgin. The piece on coconut oil covers the sharp-melt-point chemistry in detail; for shortening swaps, treat coconut oil as a winter solution and a cool-kitchen solution and an everywhere-else gamble.

Cream cheese at function-match 66/100, ratio 1:1, comes in cold and cubed for pie crust. The notes say "makes tender flaky dough," which is true and also misleading. Cream cheese is roughly 33% fat, 50% water, and 8% protein. The water content is enormous — almost three times butter's. What makes it work in pie dough is that the protein partially binds that water, so it hydrates flour less efficiently than free water would. The result is a dough that's tender (the fat coats some flour) and slightly chewy (the protein develops a little structure) and tangy (the lactic acid from the cream cheese culture). It's not shortening's job, but it's a different good thing. A 50/50 cream cheese / butter dough is a popular variation that splits the difference.

Palm oil at function-match 50/100, ratio 1:1, has "the same semi-solid consistency" and is sometimes used industrially as a Crisco replacement (it was, in fact, the partial-hydrogenation-free industry pivot after the FDA's 2018 trans-fat ban). The plastic range is similar, the melt point is comparable, and the chemistry is closest to shortening of any commonly-available vegetable fat. The flavor note — "distinct palm flavor in delicate pastries" — flags the catch. Refined palm oil is mostly neutral; unrefined red palm oil is not. There are also sourcing concerns most home bakers care about. It's the right answer chemically and a complicated answer ethically.

Avocado oil at function-match 33/100, ratio 0.75:1, is the case where the data tells you to use less — 3/4 cup oil per 1 cup shortening. The lower ratio compensates for the absence of trapped air (oil can't be creamed), so total caloric density is conserved while the recipe's hydration stays balanced. It works in quick breads — muffins, banana bread, oil-based cakes — where you wanted a tender, moist crumb anyway. It does not work in pie crust, biscuits, or anything laminated. Treat the use-case match as a hard wall, not a sliding scale.

Swap-by-use-case quick reference

For baking (applicability 4.5) and dessert (4.4), use butter or lard — both preserve the solid-fat structure that lamination and creaming require. For cooking (4.4) and savory (4.3) applications, lard is the strongest match (and historically what shortening was invented to imitate). For frying (4.1), where you need a high smoke point and don't care about lamination, lard or palm oil — both above 350°F. For low-heat sauce and dressing applications (3.6 and 2.5), where you're really just looking for fat-as-medium, avocado oil or another neutral liquid oil is fine; the structural job isn't being asked. The applicability scores roughly track how much of shortening's three jobs (plastic creaming, anhydrous gluten interruption, high-melt-point lamination) the use case actually demands. Match the substitute's strengths to the jobs that matter.

Related substitutions on SwapCook

For the full ranked list with ratios and use-case breakdowns, see the shortening substitute head page and the shortening substitutes for baking breakdown for the application that matters most.