Swirl techniques: the Taiwan Swirl, Drop Swirl, Ghost Swirl and more

TL;DR: Swirls are the most visible design of homemade soap - marble patterns and spirals created by simple movements of a special tool through the soap mass. Success depends entirely on the timing of the trace - the right moment is between light and medium trace, when the mass is thick enough for the shape but flexible enough for the spiral.

Swirls are the calling card of home soapmaking - marble patterns, ripples and spirals that make each piece of soap unique. No two batches look exactly alike. On Pinterest and Instagram, swirl soaps are among the most shared content in the natural beauty category.

But mastering swirly requires understanding one thing: timing trace. Each technique only works at a certain degree of density - too fluid and the colours will blend into a uniform grey slurry, too dense and the pattern will not develop.

How to prepare a soap ideal for swirly?

Recipe for swirly

The recipe for swirly must give a slow, predictable trace. Recommended composition:

• 25% coconut oil (less = slower trace)
• 40% olive or sunflower high-oleic oil
• 20% additional conditioning oils
• 10% castor oil
• Water: 38% (more water = more working time)
• Temperature of oils and lye during mixing: 28-32 °C (lower = slower trace)

See Advanced design recipes for detailed composition.

What dyes work best in swirl?

You must add the dyes on a very light trace and each colour must be well dispersed. Pre-mix the mica or oxide with a small amount of oil (1 tbsp oil to 1 tsp dye) beforehand - not at the time of manufacture.

Number of colours: 2-4 colours are optimal to start with. More colours = more divisions = faster cooling and hardening.

Technique 1: Taiwan Circling Swirl

How does Taiwan Circling work?

Taiwan Circling Swirl is the most popular swirl technique. It results in concentric waves or a marble-like pattern visible in the cross-section. Soap is poured into the mould in layers or all at once - with different colours poured in stripes. Then, with a special tool (skewer, hanger tool or wire spiral), it is drawn in a circular motion across the entire width of the mould.

Step by step

1. Preparation: Place the loaf tin on a flat surface. Prepare 2-4 colours in separate containers. Prepare the swirl tool (hanger tool or bent wire).

1. Pouring colors: For light trace, divide the batch into containers according to the number of colours. Add dyes. Pour into the mould in strips - either side by side or alternately.

1. Swirl motion: Insert the swirl tool into the mould approximately 2 cm from the surface. Pull slowly in a circular motion across the entire length of the mould - one smooth motion. Then a second set of movements in the opposite direction or in a different pattern.

1. Surface finishing: Smooth the surface with a silicone spatula or leave loose.

1. Gel phase and maturation: Standard CP procedure.

Tips:

• The slower you pull the swirl tool, the finer the pattern
• The colors must have the same trace density - add the dyes at the same time to each part
• White and dark colours contrast best

Technique 2: Drop Swirl

How to create an organic fluid pattern?

Drop Swirl creates an organic, fluid pattern. Drops of one colour fall into another and are whisked through a skewer. The base colour (one) is poured into the mould. Contrasting colours are applied to it in drops or thin stripes. Then different patterns are drawn with a skewer - "S“ curves, waves, spirals.

Step by step

1. Pour the base colour (usually light) into the mould - a whole batch or 3/4.
2. Pour the contrasting colours (1-3) in drops or thin stripes over the entire length of the mould.
3. Use a skewer or thin tool to draw patterns:
4. Finishing and standard maturation.

Tips:

• Add contrasting colours on medium trace - they need to sink and hold their shape, but not immediately solidify
• Less is more - simple movements give cleaner results

Technika 3: Ghost Swirl (Auntie Clara’s Swirl)

How to create a "phantom“ pattern through the gel phase?

Ghost Swirl is a more advanced technique working with gel phase and thermal behaviour of dyes. The result is a "ghost&#8220pattern&#8220the pattern is almost invisible in fresh soap, but stands out when aged or after shaving soda ash from the surface. The white soap base (titanium dioxide) and the non-white (dyed) part are poured alternately or side by side. During the gel phase, the parts are mixed at the interface by gentle streams of heat - resulting in a fine, hazy pattern.

Key condition: gel phase control

Ghost Swirl works best when the gel phase is uneven - the center has gel, the edges do not (partial gel). This is achieved by using a metal (non-insulated) mold and not wrapping it in blankets.

Step by step

1. Prepare two parts of the batch: white (with TiO₂) and dark (any colour).
2. Pour alternately into the mold - white and dark in stripes or circles.
3. Leave the surface without the swirl tool - the pattern will form itself during the gel phase.
4. DO NOT wrap the mould in blankets - let the uneven gel phase take place.
5. When removed from the mould, the pattern will be barely visible at first - it will stand out when sliced.

Technique 4: Hanger Swirl (In-the-Pot Swirl)

How to create a spiral in the container itself?

Hanger Swirl is done directly in the container before pouring into the mould. The resulting cross-sections have a spiral or marble pattern. On a very light trace, you add a contrasting color directly into the container of soap and pull a wire hanger through the entire volume.

Step by step

1. Prepare the wire tool (the bent part of the wire clothes hanger - hence the name).
2. On a very light trace, add a contrasting colour to the container - in drops or a thin stripe, without mixing.
3. Insert the wire into the center of the container and pull circles or spirals.
4. Immediately pour into the mould - the pattern will partially change during casting, but the basic spiral will remain.

Comparison of the four techniques

Frequently asked questions

Which technique is easiest for beginners? Drop Swirl is the easiest - it just requires an understanding of medium trace and simple moves. Taiwan Circling is only slightly more difficult and gives more spectacular results, so we recommend starting with that.

What to do if the colours in the swirl blend into grey? Your trace was too light - wait longer for medium trace. Or the number of colors unnecessarily divides the soap and how many parts cool. Try just 2 colors.

Why can't I see Ghost Swirl on a fresh bar of soap? It's normal! The Ghost Swirl emerges during maturation and after shaving. If you don't see it at all even after slicing, your gel phase was too even - next time don't coat the mold at all.

How do I know the mass is at the ideal moment to swirl? Test: a small spoonful of the mass should be firm and hold the shape of the pattern (not liquid), but when you gently bend it, it should bend slightly without cracking. Simply: density like a soft pudding.

Can I make swirly with natural dyes? Yes, but some natural dyes change in an alkaline environment. Test them beforehand. Spirulina works well, matcha and red oxide run. Activated charcoal is ideal.

What if the swirl tool gets stuck in the soap? Stop now. The soap is too stiff. Let it set in the mould and try earlier next time. Or increase the temperature - a warmer mass is more fluid.

Do I need a special mold for swirly? No. A rectangular mould (wooden mould) is ideal, but plastic moulds, tubes, and in fact anything that is flat and belongs on a smooth surface will work. The deeper the mold, the more spectacular the result.

See also:

• Advanced design recipes - recipe optimized for swirly
• Natural colorants - stable colours for design
• Synthetic dyes and micas - mica and oxide for swirly
• Layering and embed - other design techniques