This piped floral melt and pour soap has a purple and green base and a piped soap frosting top that matches the colors underneath. The frosting is Melt Whip & Pipe (MWP), a hot process soap you can pipe onto melt and pour and reheat if you make a mistake. It’s an easy way to give a plain soap loaf a bakery-style finish.
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Materials & Tools
Soap Base & Frosting
- Crystal clear melt and pour soap base, enough to fill your loaf mold (mine holds about 5 cups)
- Titanium dioxide mixed with distilled water, to turn the clear base a soft white
- Melt Whip & Pipe (MWP) from Rose of Sharon Soapery, about 3–4 oz for a loaf
Color & Scent
- Violet Petal and Green Jade from this Stardust mica set
- Fragrance oil (I used Energy, my favorite)
- Bio glitter for the top (optional)
Tools
- Silicone loaf soap mold
- Piping bags and tips
- Hand mixer with whisk or an immersion blender with whisk attachment
- Microwave-safe plastic container for heating the MWP
- Spray bottle of 91% isopropyl alcohol
- Thermometer
- Digital scale
- Soap cutter
- Shrink wrap for packaging
Fragrance Amount
Use up to 5 ml of fragrance oil per 16 oz (1 lb) of soap base. A 5-cup loaf is roughly 40 oz of soap, so that’s up to about 12.5 ml in total. You can always use less if you like a lighter scent, but don’t go over 5 ml per 16 oz. Keep the fragrance in the frosting light too.
How to Make Piped Floral Melt and Pour Soap: Step by Step
1. Melt and Whiten the Base
Melt the crystal clear base in two containers, about half for each color. Mine were around 145°F. Mix the Stardust micas in a few ml of alcohol ahead of time so they blend in smoothly. Add a few drops of titanium dioxide to each container to make a soft white base, then adjust until you like the shade.
2. Color, Scent and Cool
Stir Violet Petal into one container and Green Jade into the other, then add your fragrance. You can make the colors darker if you like. Let the soap cool as much as you can before pouring. Mine were 117°F (purple) and 120°F (green) when I poured.
3. Pour the Layers
Pour the green in first so it has a little more time to cool, then add a few drops of purple and see what happens. Spray with alcohol, fill every little nook with the rest of the green, then pour the purple on top. Give it a gentle stir for a bit of movement, spray with alcohol again and leave room at the top for the frosting. Let the loaf harden.
4. Heat and Whip the Melt Whip & Pipe
Put a few ounces of MWP in a plastic container and heat it to 190°F. Whip it with the hand mixer, then add a little fragrance and whip again. For a small test loaf, 3–4 oz is plenty. I used 4 oz and had some left over, so 2–3 oz would likely do. If the MWP starts to get fussy, the maker suggests adding a little water.
5. Color the Frosting
Split the frosting into two cups. Fold a generous amount of Green Jade into one and Violet Petal into the other, trying to match the colors in the soap loaf.
6. Pipe the Top
Spray the top of the loaf with alcohol. Fill the piping bag and pipe from the lighter color to the darker one. If the MWP thickens while you work, reheat it for a few seconds and keep going. My piping bag is small, so I refilled it a couple of times. Finish with a little bio glitter if you like.
7. Unmold, Cure the Frosting and Cut
Let the loaf set, then unmold it. The frosting stays a little soft at first, so let it sit for about two days before cutting and wrapping. After a few days it firms up enough to pack, but it still feels a little spongy. Cut the loaf on its side so the piped top doesn’t get squished.
Tips & What I Learned
- Start small with MWP. 2–4 oz is enough for a loaf mold. You can reheat leftovers for your next project.
- Pour the base cool. Pouring around 117–120°F keeps the colors from blending too much.
- Match the frosting to the soap. Using the same micas in the frosting and the base ties the design together.
- Reheat instead of fighting it. If the frosting gets too thick to pipe, a few seconds of heat brings it back.
- Try Russian piping tips. They make pretty flowers quickly, even if your piping skills are still a work in progress.
- Use leftovers on bath bombs. Add a little melt and pour to the top of a bath bomb, then pipe the leftover frosting on top.
Troubleshooting
My frosting got too thick to pipe.
MWP firms up as it cools. Reheat it for a few seconds and keep piping.
The frosting feels wet after unmolding.
That’s normal. Let it sit for about two days before cutting and packing.
My colors blended together.
The soap was poured too hot. Let it cool to around 120°F before pouring.
The loaf stuck to the mold.
It may not be fully set yet. Give it more time before unmolding.
FAQ
What is Melt Whip & Pipe?
It’s a hot process soap made by Rose of Sharon Soapery that you heat, whip and pipe onto melt and pour soap. You can watch the creator’s video here.
How much fragrance oil should I use?
Up to 5 ml per 16 oz of soap base. You can always use less, but don’t use more than 5 ml per 16 oz.
How long before I can wrap the soap?
The frosting can be wrapped in about 24–48 hours. I let mine sit for about two days.
How much MWP do I need for a loaf?
About 3–4 oz. I used 4 oz and had plenty left over.
More Soap Frosting Ideas
- Melt Whip and Pipe Soap Frosting
- How to Make Whipped Soap
- Peppermint Melt and Pour Soap with Soap Frosting
- Cupcake Melt and Pour Soap 3 Ways
- All my melt and pour soap tutorials on YouTube
If you make this, I’d love to see it! Tag me on Instagram or Pinterest, and subscribe on YouTube for new soap tutorials.
