Coconut oil
The fat that is a different ingredient depending on the room. Solid on a cool worktop, liquid on a warm one, and it is not a butter substitute in either state.
Also called virgin coconut oil (INTERNATIONAL); refined coconut oil (INTERNATIONAL); coconut butter (US) — A different product — ground coconut flesh, not the extracted fat.
Coconut oil is the clearest illustration of why BakeHQ treats fat STATE as the property that matters. It is solid in a cool kitchen and liquid in a warm one, and the change happens across a range that ordinary rooms sit on either side of. The same jar is two different ingredients in January and July.
That makes it unusually unreliable in any recipe that depends on the fat being in a particular state, and unusually useful in vegan work where a solid fat is needed and dairy is not available.
IT IS NOT A DROP-IN FOR BUTTER, in either state. Solid coconut oil is harder and more brittle than plastic butter, and it does not have the same working range — it tends to shatter where butter would spread, which matters for rubbing in and matters more for lamination. It also contains no water, so it contributes no steam, and no milk solids, so it contributes nothing to browning by that route.
Refinement decides the flavour. Virgin coconut oil tastes distinctly of coconut and carries that into whatever it is used in; refined coconut oil is close to neutral. Recipes rarely specify which, and the two give noticeably different results in anything delicate.
Composition and specification
Water and milk solids, against butter
Coconut oil contains neither the water nor the milk solids that butter does. Substituting it for butter by weight therefore removes the steam contribution and the milk-solid browning route at the same time as it changes the melting behaviour.
It is an extracted plant fat, so the absence follows from what it is. BakeHQ publishes no melting-point figure, because retail coconut oil melts over a range that varies with processing and no single number is honest.
RecordedTrue by definition rather than by measurement
What changes if it is left out
In a vegan formulation where it was providing the solid fat, removing it removes the structure and the aeration route together; a liquid oil will not replace it and a vegan block fat is the closer swap. In a recipe where it was chosen for flavour, a neutral oil replaces the function and not the taste.
Follows from the state and composition recorded above, and from the fat-plasticity model, which carries its own support.
RecordedFollows from evidence recorded elsewhere on BakeHQ
Related
What it does
Gluten inhibition
Tenderises in either of its states, which is the one job it does reliably regardless of the temperature of the room.
The science behind it
Fat plasticity and crystal structure
The clearest case in the catalogue of a fat whose identity does not predict its behaviour: it crosses in and out of solid across the range an ordinary kitchen occupies.
Can stand in for
Butter— for tenderising, and for solid structure only if the kitchen is cool
THE STATE-DEPENDENT CASE. Solid coconut oil looks like a block-fat substitute and is harder and more brittle than plastic butter, so it shatters where butter would spread — which matters for rubbing in and matters a great deal for lamination. Above its melting range it is simply an oil. BakeHQ does not record it as a general butter replacement, because whether it is one depends on the temperature of the room rather than on anything about the recipe.
Covered in
Choosing a fat, and substituting one honestly
The case where the answer depends on the temperature of the room rather than on the recipe.