What Is the Difference Between Oud and Ordinary Tree Wood? A Comprehensive Comparison
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Many confuse oud with any dark or aromatic wood, so they think that every piece of wood of a dark color or a pleasant scent is a precious oud. And the truth is that the difference between them is essential, not superficial. In this article we place oud and ordinary tree wood side by side in a frank comparison: what the source of each of them is, what really separates between them, and how you distinguish them in practice when buying. And this article is a part of the complete guide to oud which gathers the axes of the subject in one place.
1. Why do we compare at all?
The question may seem strange at first glance: is oud not a wood in the end? So why do we hold a comparison between it and ordinary wood at all? The answer is that this very confusion is the source of much of the illusion in the oud market. For many see a piece of wood dark in color or possessing a scent, so they hasten to name it oud, and the truth is that between them is a vast gulf in nature and value.
The comparison here is not a theoretical luxury, but a practical need for everyone who wants to buy a real oud or understand what he acquires. For when you realize exactly where the difference lies, it becomes difficult for an ordinary dark-colored wood or an aromatic wood of another type presented as oud to impose upon you. The awareness of the difference is the first line of defense for your pocket and your taste.
And we will see in this article that the crucial difference is summarized in a single word: the resin. For ordinary wood — whatever its type — lacks this accumulated aromatic resin that distinguishes oud and makes its value. And what is beyond that of differences in the color, the weight, and the scent is only a result of this essential difference, not an independent cause from it.
And what is more, the confusion does not occur between oud and types of wood far from it only, but may occur between oud and the healthy wood from the very tree in which oud arises. For the Aquilaria tree in its origin carries an ordinary light wood with no aromatic value, and a part of it does not become oud except when it is saturated with the resin. And this very paradox — as we will show later — is the clearest example that explains the whole difference.
And because the market teems with shiny commercial descriptions, the buyer came to be in need of a firm standard to return to instead of being swept along behind the appellations. And the systematic comparison that we present here grants you this standard: for instead of asking "does this name suggest luxury?" you ask "where is the position of this piece on the axis of the resin?". And this shift in the question alone is capable of changing your manner of buying oud from the foundation, and makes you look at the material itself, not at its marketing wrapper.
2. The essential difference: the resin
If we wanted to reduce this whole article into a single sentence, we would say: oud is a wood saturated with the aromatic resin, and ordinary wood is a wood free of it. For the resin is the dark, sticky material that particular trees secrete in response to an injury or an infection that befalls their tissue, so it accumulates inside the wood over the course of long years until it transforms it into a heavy, dark aromatic material which is oud.
Ordinary wood, in contrast, is the tissue of the tree as it is without this resinous accumulation; light in color, light in weight, devoid of the distinctive aromatic scent. And some woods may have a scent of their own, but it is not the scent of oud nor does it spring from the same mechanism. The difference, then, is not in the type of the tree first, but in the presence of the resin or its absence.
And we devoted to this aromatic material an independent article in which we explain it in detail, so whoever wants to understand what the resin is and how it grants oud its color, its weight, and its scent, let him read what is oud resin?. As for here, it suffices us to establish the principle: the more the resin in the wood increases, the closer it comes to being a high-quality oud, and the more it diminishes or is absent, the more it remains an ordinary wood whatever its color or its source.
And it is useful to realize that the resin does not distribute equally inside the trunk, so oud often comes in the form of veins and dark spots interspersing a lighter wood, not as a homogeneous mass. And this variance in the saturation is what explains the variance of the grades of oud and its prices, from daily grades within the reach of many to rare high-density pieces that the enthusiasts value.
3. The comparison table
To bring the image closer, we place in the following table the most prominent aspects of the difference between ordinary wood and oud side by side. And we note that we avoid in it the decisive figures, because many of these aspects come in a varying range, not in a single fixed value:
| Aspect of comparison | Ordinary wood | Oud (the resinated wood) |
|---|---|---|
| The source / the tree | Any woody tree, and likewise the healthy uninjured wood from the Aquilaria tree itself. | The injured part saturated with the resin from the Aquilaria or Gyrinops trees specifically. |
| The resin content | Very little or absent; no aromatic resin to mention interspersing the tissue. | Relatively high, and it is the essence of the difference; the depth and the value increase with the increase of the saturation. |
| The weight and the density | Relatively light, and floats on water usually. | Heavier and denser the more the resin increases, and may sink in water in its high grades. |
| The color and the veins | Light and homogeneous in color often, without dark veins. | Darker, and often comes with dark veins and spots interspersing a lighter wood. |
| The scent upon burning | An ordinary or smoky burnt-wood scent, without aromatic layers. | A deep, multi-layered aromatic scent that appears and persists upon heating. |
| The use | Construction, furniture, fuel, and general purposes. | Burning, perfuming, and acquisition, and distillation to extract oud oil. |
| The value / the price | Relatively trifling according to the type of the wood. | Much higher usually, and its range varies a wide variance according to the density of the resin. |
And the gathering observation from the table is that every difference you see — in the color, the weight, the scent, and the value — returns in its root to a single difference: the content of the resin. For when the resin is absent we obtain the first column, and when it accumulates we obtain the second column. As for the behavior of sinking in water specifically, it has been connected historically to the high density of the resin, and it has a long tale we detailed in the tale of sinking oud, with the caution that the floating or the sinking is an approximate indicator, not a decisive rule.
The dark color alone does not suffice as a proof that the wood is oud, since ordinary wood can be darkened by various methods without it carrying an atom of resin. The lesson is in the gathering of the signs — the weight and the scent upon heating — not in an apparent color that may be artificial.
4. The same tree, two different woods
The clearest thing that makes the difference between oud and ordinary wood evident is an example that may seem surprising: the very same tree may carry the two types together. For the Aquilaria or Gyrinops tree in its origin, its wood is light, light-weight, devoid of scent, that is, an entirely ordinary wood. And a part of it does not transform into oud except when that part is injured so the resin begins to accumulate in it.
This means that the difference between oud and ordinary wood is not always a difference between two different trees, but may be a difference within a single tree: an injured, resinated, dark, precious part, surrounded by a larger quantity of the healthy light wood that is not counted as oud even if it is from the same tree. For the lesson is in the injury and the resination, not in the mere belonging to the Aquilaria tree.
And here it becomes clear why the extraction of oud is regarded as a precise work: since it requires finding the resinated part inside the trunk and separating it from the light wood surrounding it. And we detail the mechanism of the transformation of ordinary wood into oud inside the tree in how does oud form inside the tree?, and we also show why some trees are injured and not others in why do some trees produce oud and not others?.
And the conclusion is that the difference is not in the botanical genus alone, but in what befalls the wood of resination. For even the Aquilaria tree — which is the most famous source of oud — most of its wood remains ordinary as long as the resin does not touch it. And this very example demolishes the idea that oud is "a kind of tree," and establishes that it is a state that befalls the wood.
5. Aromatic wood is not oud
There is another common confusion that deserves clarification: some woods have pleasant scents of their own — such as sandalwood or cedar or others of the aromatic and ornamental woods — so some think that every aromatic wood is oud. And the correct thing is that these woods, for all the beauty of their scents, are not oud, because they do not gain their scent from the resin accumulated by the action of the injury, but from their own nature.
Oud is a specific term that does not widen to every aromatic wood: for it is specifically the wood saturated with the resin from the Aquilaria and Gyrinops trees. For sandalwood is sandalwood, and cedar wood is cedar wood, and each of them has its value and its uses, but neither of them is oud nor is it valid for it to be sold or bought as oud. Confusing between them is not a matter of naming only, but may be a door to fraud in the market.
And we are keen here on honesty: we are not diminishing the value of the other aromatic woods, for each of them has its standing and its lovers. But our aim is to prevent the confusion that may push a buyer to think that he has acquired oud when he has not. The distinguishing standard remains one: is the scent springing from a resin accumulated in the wood of the Aquilaria or Gyrinops, or from the nature of another wood?
And it is well to caution also that some perfumed products may carry scents that imitate oud without containing a real oud. For the resembling scent does not mean the same material, and the awareness of this difference is a part of the protection of the buyer for himself from the loose commercial descriptions.
And let us put the rule in its most concise form: not every dark wood is oud, and not every aromatic wood is oud, and not every wood from the Aquilaria tree is oud. Oud is specifically the wood that was saturated with the resin by the action of the injury in the Aquilaria or Gyrinops tree. And everything that departs from this description is another thing that may be precious in its own domain, but it is not the oud we are speaking of. This clear boundary is what preserves for the word its meaning and preserves for the buyer his right.
6. How you tell them apart in practice
After we have known where the difference lies, the practical question remains: how do you distinguish oud from ordinary wood in your hands? There is no single magic trick, but the gathering of a few signs gives you a strong indicator, and the truest of them is what your senses touch directly:
The weight: oud saturated with the resin is heavier and denser than an ordinary wood of the same size, because the resin is a heavy material. So if you held two pieces equal in size and one of them was clearly heavier, that is an indicator — not a decisive proof — of the richness of the resin.
The color and the veins: oud often carries dark veins and spots interspersing a lighter wood, and they are traces of the unequal distribution of the resin. But be attentive that the dark color alone may be artificial, so do not rely on it in isolation.
The scent upon heating: this is the truest of the signs. For ordinary wood upon its burning gives a scent of burnt wood or smoke, whereas oud, the layers of its deep aromatic scent appear and persist upon heating. The senses here are a truer judge than any commercial description. And we clarify how we examine oud and classify it on the quality-control page.
And we will devote in this guide independent axes to the two questions "what does natural oud wood look like" and "what does the scent of oud smell like," in which we detail these two signs, the visual and the olfactory, with what this article does not have room for. As for here, it suffices us to establish that the gathering between the weight, the veins, and the scent upon heating is the closest that leads you to an honest distinction without laboratory tools.
7. Why the difference matters when buying
This distinction may seem academic, but it is in reality a practical foundation that protects your money and your taste. For when an ordinary wood or an aromatic wood of another type is presented to you as oud, you are exposed to paying the price of oud in return for what is not oud. And the awareness of the difference makes you ask the correct questions and request what proves that what you buy is a real oud.
The practical rule is that the value is in the resin, not in the bare wood. So do not pay the price of oud for a mere dark color or a pleasant scent, and ask the seller to clarify the origin and the grade, and to enable you to test the scent upon heating. The serious seller mentions to you these details and does not content himself with loose phrases, and we make it possible to test oud before the commitment through the samples page.
And it also benefits you to understand how the grades of oud are classified, since it did not historically know a unified global system of grading, which we detailed in the history of oud grading. For the awareness of the foundations of the classification makes you a confident buyer upon whom the shiny appellations and the woods that impersonate the attribute of oud do not impose.
Authentic high-density oud is rare and costly by its nature, so if you see a wood sold as excellent oud at a trifling price, stop and verify. It is often an ordinary or aromatic wood of another type presented in the garb of oud. Your nose and the weight of the piece are a truer judge than the name on the label.
The clearest thing that distinguishes oud from ordinary wood is the sense: the weight and the scent upon heating. At Oud Treasure you can begin with a small sample by which you touch this difference directly before acquiring a larger piece.
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For a wider deepening, begin from the complete guide to oud which gathers all the axes of the subject in one place, then look at what is agarwood? to understand the structure of the resinated wood, and at what is oud resin? to understand the material that makes the whole difference. And look also at the article the difference between oud and bukhoor to know how oud as a material differs from bukhoor as a wider category. And we are working on devoting independent articles to interconnected axes such as: "what does natural oud wood look like?", and "what does the scent of oud smell like?" — we add their links here successively whenever they are completed.
