Making soap with wine

The bottle that started my wine-soap obsession was a corked, vinegary Merlot too far gone to drink — I couldn’t bear to pour it down the drain, so I poured it into my lye pitcher instead. That first burgundy loaf, with its improbably creamy lather, turned a wasted bottle into one of my favorite bars, and I’ve been soaping with wine ever since.

The Real Story Behind My Wine Soap Bars

Wine soap sits in that lovely intermediate territory where the craft gets genuinely interesting. After a decade of plain water batches, replacing that water with wine was my first real step into alternative liquids, and it humbled me fast.

Lisa Mandel

My debut attempt smelled so foul during mixing — a sharp, sulfurous funk rising off the batter — that I nearly tipped the whole thing out, convinced I'd ruined it. Six weeks later it cured into a mild, wine-hued bar with the richest bubbles I'd made to date. That gap between the ugly process and the beautiful result is the whole story of soaping with wine.

What follows is everything those burgundy batches taught me, the flops as much as the wins.

What This Craft Really Entails

Making wine soap means using wine in place of some or all of the distilled water that normally dissolves your lye in cold process soap making. The oils, the sodium hydroxide, the whole reaction stays the same — only the liquid changes, and that single swap cascades into a handful of new challenges.

It belongs to a family of alternative-liquid soaps alongside beer, champagne, milk, and tea batches. Soapers reach for these liquids partly for marketing appeal and hometown pride — a soap made with local wine tells a story — and partly because the natural sugars in wine produce a stable, fluffy, generous lather that plain water can’t match.

This is not a beginner project, and the reason is chemistry. Alcohol added directly to lye can overheat violently and erupt in a lye volcano, so the wine’s alcohol must be boiled off before it ever meets the sodium hydroxide. A raw pour of wine onto lye is genuinely dangerous. Get a few plain water batches under your belt before you attempt this.

Two properties of wine drive every technique that follows: its alcohol and its sugar. The alcohol must go, boiled away over the stove. The sugar can’t be removed, so it must be managed — sugar scorches when it meets caustic lye, which is what causes both the dark color and that eye-watering smell during mixing.

Ever wondered why your beautiful red wine turns a muddy tan in the soap pot? That’s the sugar caramelizing and the pigments breaking down under saponification. The gorgeous ruby you poured in does not survive; it darkens to brown, which is why nearly every wine soaper reaches for mica or clay to restore a proper wine hue.

Who is this best suited for? Intermediate soapers comfortable with cold process who want to level up. If you can hit trace reliably, handle lye calmly, and troubleshoot a batch, you’re ready. Complete beginners should wait — wine adds variables that are frustrating to debug before the basics are second nature.

Essential Materials and Tools

Beyond your standard cold process kit, wine soaping calls for a few specific additions. Here’s what my bench holds for a burgundy batch.

You can substitute wine for anywhere from a portion to 100% of your recipe’s water. Using half wine and half distilled water is a gentle way to start — you still get the lather boost and marketing appeal, but with less sugar to scorch and a lighter final color. The more wine you use, the darker and stinkier the process, though the cured bar comes right in the end.

Key Techniques and Skills

Wine soaping layers a few specialized moves on top of standard cold process. These are the ones that matter:

• Boiling off the alcohol — simmering the wine 10–40 minutes until the alcohol cooks away and it stops smelling boozy
• Over-buying and re-weighing — starting with extra wine, then weighing after boiling since evaporation shrinks the volume
• Topping up with distilled water if too much liquid boiled away, to hit your recipe’s exact water weight
• Freezing the prepped wine into cubes, or chilling below 50°F, before it meets the lye
• Adding lye slowly to the frozen or ice-cold wine, a little at a time with stirring, to keep temperatures and scorching down
• Mixing the lye-wine solution in a deep vessel set in the sink, guarding against splatter and false-seizing
• Stirring the cooling solution periodically to break up any curdled-looking scum on the surface
• Soaping at cooler temperatures (around room temperature) to slow the sugar-accelerated gel
• Watching for fast trace and rapid gel, and guarding the mold area against soap volcanoes
• Coloring to correct the brown batter back to a wine tone with mica and clay
• Scenting at trace with a wine fragrance oil, since the natural aroma won’t survive
• Patient curing — giving wine bars the full 4–6 weeks, sometimes longer, for the off-smell to fade

High-sugar wines are the trap that catches confident soapers. A sweet wine speeds up gel dramatically and can cause the batter to bubble, spit, and volcano out of the mold — choose a dry, low-sugar wine to keep the reaction manageable. One of my early sangria-style batches with a sweet wine climbed right out of its silicone mold while I watched, helpless, spatula in hand.

Skill Level and Time Investment

Wine soap asks for more time and patience than a standard batch, mostly in prep and cure. Here’s the realistic picture.

The hidden time cost is the prep day. Boiling and freezing the wine should happen the day before you soap, not the same afternoon. Rush it — pour warm wine onto lye — and you’ve skipped straight to the volcano. Patience here isn’t optional; it’s the safety margin.

Advantages and Challenges

After enough burgundy loaves to lose count, here’s my honest tally, backed by the wider soaping community’s experience.

Why wine soap is worth the fuss:

• Sugar-driven lather that’s noticeably creamier and fluffier than water-based bars
• A genuine use for spoiled, corked, or simply unenjoyable wine — zero waste
• Strong marketing appeal, especially with local or regional wines
• Possible antioxidant and nutrient contributions from the grapes (though saponification may destroy much of this)
• A rich, wine-toned color once corrected with mica
• An impressive, giftable product that feels special and artisanal
• A satisfying step up in skill for soapers ready to grow

The genuine frustrations:

• A truly awful smell during mixing that tests your resolve
• The wine’s natural color and aroma both vanish in saponification
• Extra prep — a full day of boiling and freezing before soaping
• Sugar-accelerated trace and gel, with real volcano risk
• Long cure times before the off-smell fully clears — sometimes 7+ weeks
• An advanced technique unforgiving of beginner mistakes

Real Project Applications

What do I actually make with wine? My signature is a Merlot bar using red wine as the full liquid, colored with a blend of burgundy and purple mica to rescue the tone, and scented with a wine fragrance oil. A standard 2.5-pound loaf yields eight to ten generous bars, each with that hallmark creamy lather.

Champagne and sparkling wine soaps are a favorite for celebrations. Carbonated wine needs an extra step — letting it go flat for a few days before boiling — but the payoff is a bar that markets itself for weddings, New Year’s, and anniversaries. One soaper’s strawberries-and-champagne batch was stinky at first and bloomed into a lovely fragrance by week seven.

The rebatch trick doubles the value of a single wine loaf. I grate part of a cured cold process wine bar, melt it down gently with a splash of extra oil, and press it into new molds — a hand-milled second soap that’s even more conditioning than the first. My family, all of them plagued by dry winter skin, request these burgundy rebatch bars specifically every December.

Rosé-and-champagne blends occupy the fancy end of my repertoire. Mixing two wines as the combined liquid produces a soft pink batter and a delicately layered scent that a single wine can’t achieve. These are the bars I save for gifts, wrapped in kraft paper with a hand-lettered tag.

Practical everyday soap works too. A half-wine, half-water batch scented lightly and left uncolored makes a workhorse kitchen bar with a lather that spoils you for plain soap. Which other kitchen leftover turns into a product you’ll reach for daily? A forgotten half-bottle earns its keep this way.

Wine soap also shines as a seasonal and regional product. A Napa maker featuring a local cabernet, a Tuscan hobbyist using the family’s table wine — the technique ties the soap to a place, and buyers respond to that story far more than to another lavender bar.

The Learning Experience

Most soapers arrive at wine after mastering plain cold process, often the way I did — with a bottle too good to bin but too bad to drink. Sound familiar? That “why not?” moment launches a lot of wine-soap journeys, and the forums are full of half-bottle experiments.

The common early mistakes cluster tightly: skipping or rushing the alcohol boil-off, adding lye to warm wine, choosing a sweet wine that volcanoes, and — the big one — panicking at the smell and dumping a perfectly good batch. That awful odor during mixing is normal and temporary, not a sign of failure.

Here’s a question every first-time wine soaper wrestles with: if the wine’s color turns brown and its aroma disappears entirely, what’s actually the point? The answer surprised me — it’s the lather. The sugars survive where the color and scent don’t, and that creamy, stable bubble is the real reward wine leaves behind in the bar.

My own breakthrough came during that first foul-smelling Merlot batch. Every instinct screamed to abandon it, but a forum thread convinced me to trust the cure. Watching it transform over six weeks from a stinky brown loaf into a mild, fragrant bar rewired how I think about patience in this craft — sometimes the ugly middle is just part of the process.

For learning resources, the alternative-liquid tutorials at Bramble Berry and Wholesale Supplies Plus are the clearest, and the Soapmaking Forum’s wine-and-beer threads are gold for the “is this smell normal?” question that every beginner asks. The satisfaction, when it lands, is real: handing someone a bar made from a bottle they’d have thrown away feels like a small act of alchemy.

Comparison with Similar Crafts

Wine is one of several alternative liquids soapers use. Here’s how it compares to its cousins.

Common Questions from Fellow Crafters

Q: Do I really have to boil the wine first?

A: Yes, absolutely. Alcohol added to lye can overheat and erupt. Simmer the wine 10–40 minutes to cook the alcohol off, then chill it thoroughly before it meets the sodium hydroxide. This step is non-negotiable safety, not a suggestion.

Q: Why does my wine soap smell so terrible while I’m making it?

A: That’s the natural sugars scorching as the lye hits them, and it’s completely normal. Keeping the wine ice-cold reduces it, but some funk is unavoidable during mixing. The good news: it fades over the cure and disappears in the finished bar.

Q: Will my red wine make the soap red?

A: Sadly, no. Saponification turns the batter a muddy brown regardless of the wine’s original color. To get a true wine hue you’ll need to add burgundy or merlot mica, often alongside a little titanium dioxide or kaolin clay to lighten the base.

Q: Can I use expensive wine, or is cheap fine?

A: Cheap is perfectly fine — even off or corked wine works, which is the whole appeal. Since the flavor and aroma don’t survive anyway, a bargain bottle performs identically to a fine one. Save the good stuff for your glass.

Q: What kind of wine works best?

A: Dry, low-sugar wines behave most predictably. Sweet wines accelerate gel and can volcano. Red or white both work — the only real difference is starting color, and both take about the same cure time. When in doubt, pick a dry red.

Q: How long before the bad smell goes away?

A: Give it the full 4–6 week cure at minimum; some wine and beer soaps need seven weeks or more before they smell right. Adding a wine fragrance oil at trace helps mask any lingering funk while the bar finishes.

Q: Can I make wine soap by hot process instead?

A: You can, and some soapers prefer hot process for beer, wine, and tea soaps. The alcohol still needs boiling off first, but the cook can help drive off odors faster. It’s a reasonable alternative if you’re already comfortable with hot process.

My Personal Results and Insights

My notebook has tracked enough wine batches to draw some honest conclusions.

The insight that stuck: wine soap teaches patience better than any other batch I make. Trusting an ugly, foul-smelling loaf to become something lovely is a lesson that carried over into the rest of my soaping — and honestly, the rest of my life.

Final Thoughts and My Recommendation

Making soap with wine is one of the most rewarding intermediate techniques in the craft, and I recommend it warmly — but only once the basics are solid. This is not a first batch. If you can hit trace confidently, handle lye without nerves, and troubleshoot a recipe, wine soap will stretch your skills and reward you with a lather plain water simply can’t produce.

Be realistic about the trade-offs. You’ll lose the wine’s color and aroma, spend a full extra day on prep, endure a genuinely unpleasant smell during mixing, and wait patiently through a longer cure. Choose a dry, low-sugar wine, boil off every trace of alcohol, freeze it before adding lye, and guard your molds against the sugar-fueled gel. Do all that, and the funk fades into a mild, creamy, wine-toned bar worth every bit of effort.

For intermediate soapers hunting a satisfying next challenge, this one delivers. For beginners, bookmark it and come back after a few plain batches — you’ll enjoy it far more with the fundamentals in hand. My accidental Merlot bar, born from a bottle I couldn’t drink and almost couldn’t stand to make, remains proof that the ugliest process in my studio produces some of its most beautiful results. Pour the bad wine into the lye pitcher instead of the drain — you might just surprise yourself.