Willow vs compressed charcoal: which should you use?
It is one of the most common questions asked by anyone getting started with charcoal drawing: what is the difference between willow and compressed charcoal, and which one should you buy? The short answer is that they are fundamentally different tools that serve different purposes — and most artists who work seriously in charcoal use both, at different stages of the same drawing. Understanding what each one does, and when, is the key to getting the most out of the medium.
This guide gives you a clear, direct comparison of the two types, explains exactly when each one is most useful, and helps you decide where to start if you are buying for the first time.
What willow charcoal is and how it behaves
Willow charcoal is made from sections of willow branch that have been heated in a kiln without oxygen — a process that burns away everything except the carbon structure of the wood, leaving a stick of pure carbonised willow. There is no binder, no filler, no added ingredient of any kind. What you are drawing with is essentially a stick of structured carbon, and that purity is what defines its behaviour on paper.
Because it contains no binder, willow charcoal is soft, light, and powdery. It sits on the surface of the paper rather than bonding to it, which means it can be moved, blended, and lifted with extraordinary ease. A finger dragged through willow charcoal spreads it into a smooth, even tone. A putty rubber removes it almost completely. A clean rag can wipe it away entirely. This makes willow charcoal the most forgiving drawing material available — more forgiving, in its way, than even a soft graphite pencil, because the marks it makes can be adjusted continuously without leaving a trace of the original underneath.
The trade-off is that willow charcoal will not produce the deepest blacks. No matter how hard you press, it tops out at a rich mid-to-dark grey rather than a true, velvety black. For many drawings this is perfectly adequate — the full tonal range from white paper through every shade of grey to a deep charcoal tone is sufficient for most subjects. But for drawings that need dramatic, rich darks — deep shadows in a portrait, the darkest tones in a dramatic landscape — willow charcoal alone cannot quite get there.
We stock willow charcoals at Craft and Canvas from £2.50, available in a range of thicknesses.
What compressed charcoal is and how it behaves
Compressed charcoal is made from powdered charcoal — which is itself typically made from willow or vine — mixed with a binder, usually gum or wax, and pressed into stick form. The binder is what makes compressed charcoal behave so differently from willow despite being made from similar raw material.
Because it contains a binder, compressed charcoal adheres to paper more aggressively than willow. It is harder, denser, and significantly darker — capable of producing a rich, deep black that willow simply cannot match. It holds its shape better when sharpened, allowing for more precise marks than the naturally rounded tip of a willow stick. And because it bonds more firmly to the paper surface, it is considerably more resistant to smudging — a characteristic that is simultaneously an advantage and a limitation.
That resistance to smudging also means that compressed charcoal is much harder to erase than willow. A putty rubber will lighten it but rarely removes it completely. Once a dark compressed charcoal mark is on the paper, it is largely committed — you can work over it, blend around it, and soften its edges, but reversing it entirely is very difficult. This is why experienced charcoal artists generally treat compressed charcoal as a finishing tool rather than a starting one: it is for the darkest darks, the most definitive marks, the passages of the drawing that are fully resolved and need to be stated with conviction.
The key differences at a glance
The most important practical differences between the two types come down to four things.
Darkness. Willow reaches a mid-to-dark grey at its deepest. Compressed charcoal produces a true, velvety black. If your drawing needs the full tonal range including the deepest possible darks, you need compressed charcoal.
Erasability. Willow erases almost completely with a putty rubber and can be removed with a finger or rag. Compressed charcoal is very difficult to erase fully once applied — lightening is possible, complete removal is not. This makes willow the natural choice for exploratory work and compressed charcoal for committed final statements.
Blendability. Willow blends very easily — perhaps too easily, which is why beginners sometimes find their willow charcoal drawings going muddy as they overwork them. Compressed charcoal blends less readily, which gives it a firmer, more definite quality on the paper. Both can be blended with fingers, stumps, or rags, but the feel is quite different.
Precision. Compressed charcoal holds a sharper point and can be used for finer marks than willow. This makes it more suitable for detail work, crisp edges, and precise line drawing. Willow in stick form produces inherently broader, softer marks.
How most artists use both together
Understanding that willow and compressed charcoal are complementary rather than competing is the most useful insight for a beginner. The natural workflow of charcoal drawing — from loose to resolved, from general to specific, from exploratory to committed — maps directly onto the different properties of the two types.
Most experienced charcoal artists begin with willow. The first stage of a drawing — mapping the composition, establishing the broad masses of light and dark, making decisions about placement that may need to change — benefits enormously from the forgiving, adjustable nature of willow charcoal. Mistakes can be wiped away. Large areas of tone can be established quickly with the side of the stick and adjusted with a finger or rag. Nothing is committed until you choose to commit it.
As the drawing develops and the structure becomes clearer, compressed charcoal is introduced. The deepest shadows — the darkest dark of a portrait, the weight of a shadow falling across a floor — are stated with compressed charcoal once their position is fully decided. Charcoal pencils, which use compressed charcoal in pencil form, are brought in for fine detail, precise edges, and the sharpest linear marks. By the end of the drawing, the two types are working together: willow providing the broad tonal field, compressed charcoal anchoring the deepest values and sharpest details.
This approach is not a rigid rule — different artists work differently, and some use compressed charcoal from the very beginning for a more bold, direct result — but it provides a reliable framework that beginners find very useful.
Which should you buy first?
If you are completely new to charcoal, willow charcoal is the better starting point. The forgiving, erasable nature of willow makes it ideal for learning — you can work and rework without penalty, develop your understanding of tonal drawing without the pressure of committed marks, and build confidence with the medium before introducing the less forgiving compressed type.
A pack of medium willow charcoal sticks and a putty rubber is genuinely all you need to begin. Once you are comfortable with how willow behaves and have a sense of how tonal drawings develop, adding a stick or two of compressed charcoal — or a charcoal pencil — gives you access to the deeper darks and finer marks that take drawings to the next level.
What about charcoal pencils?
Charcoal pencils are worth a brief mention here because beginners often wonder where they fit. They are made from compressed charcoal encased in wood — exactly like a conventional pencil — and they behave like compressed charcoal in most respects: darker than willow, harder to erase, capable of a fine point. The main advantage over stick compressed charcoal is control — a sharpened charcoal pencil can be held and used exactly like a drawing pencil, making it much easier to work with for fine detail, precise lines, and careful mark-making.
We also stock a white charcoal pencil at Craft and Canvas, which is worth mentioning here. Strictly speaking, white charcoal is not charcoal at all — it is calcium carbonate (white chalk) in pencil form — but it is used in the same way and is invaluable for drawing precise, bright highlights on toned paper. Used alongside willow charcoal for mid-tones and compressed charcoal for deep darks, white charcoal pencil completes the full tonal toolkit.
Frequently asked questions
Can I use compressed charcoal over willow charcoal in the same drawing? Yes — this is the standard practice. Apply willow charcoal for the broad tonal structure, fix lightly with workable fixative if needed to stabilise the layer, then work into it with compressed charcoal for the deepest darks and finest details. The two types work together very naturally.
Why is willow charcoal so much easier to erase than compressed? Because willow contains no binder. The charcoal particles sit on the paper surface rather than bonding to it, so a putty rubber can simply lift them away. Compressed charcoal contains gum or wax binder that makes the particles adhere more firmly to the paper surface, making complete removal very difficult.
Can compressed charcoal be used over paint or wet media? With caution — compressed charcoal can bleed into wet media applied over it, causing discolouration. If you are using charcoal for an underpainting beneath paint, willow charcoal is much safer. It can be fixed and then painted over without bleeding. Always fix willow charcoal before applying any wet medium over it.
Does the thickness of willow charcoal make a difference? Yes. Thin sticks are useful for lighter, more precise line work and initial sketching. Medium sticks are the most versatile all-round size. Thick sticks cover large areas of tone very quickly and are good for bold, gestural drawing on larger paper. Most beginners find a medium thickness the best starting point.
Do I need fixative with both types? Yes, though the urgency differs. Willow charcoal is extremely vulnerable to smudging and should be fixed whenever you want to preserve a stage of the drawing. Compressed charcoal is more stable but should still be fixed on finished work. For drawings in progress, workable fixative allows continued work after application. For completed drawings, permanent fixative provides the most durable protection.
What paper works best for charcoal? Paper with tooth — surface texture — holds charcoal better than smooth paper. Heavy cartridge paper at 90gsm or above works well for practice. Charcoal or pastel paper, with a more pronounced tooth, allows for more layers and richer tonal build-up. Toned paper — grey, buff, or ochre — is particularly effective for charcoal work because it gives you a middle tone to work from, allowing you to push darks and lights simultaneously.
Shop charcoal materials at Craft and Canvas
We stock willow charcoals from £4.80, charcoal pencils, and white charcoal pencils at Craft and Canvas in Hebden Bridge and online at craftandcanvas.co.uk. If you are not sure where to start, come in and we will point you in the right direction.
Craft and Canvas | 3 Carlton Street, Hebden Bridge, HX7 8ER | craftandcanvas.co.uk