Natural Liquid Dish Soap Recipe With Sal Suds

Have you ever tried making homemade dish soap, and did you end up with a watery, ineffective mess that barely cut through grease? You’re not alone.

We’ve all been there.

Most DIY dish soap recipes fail because they rely on the wrong base ingredient. This recipe is different, and once you understand why, you’ll never go back to those other formulas.

This natural liquid dish soap recipe uses Sal Suds, a plant-derived, biodegradable cleaner that is genuinely tough on grease.

It comes together in minutes, costs a fraction of store-bought natural dish soaps, and is free from synthetic fragrances, dyes, and harsh chemicals.

And best of all…it actually works!

Why Most Homemade Dish Soap Recipes Fail

I’ve found that many DIY liquid dish soap recipes use castile soap. While castile soap is a wonderful, gentle cleanser for many uses, it has a critical weakness in the kitchen: acid destroys its cleaning power.

Vinegar, a common ingredient in these same recipes, is acidic.

When you combine an acid with castile soap, it essentially unsaponifies the soap, breaking it down and leaving you with a curdled, oily, ineffective liquid.

You may also notice cloudiness, separation, or a strange film on your dishes.

That’s why so many people try homemade dish soap once, decide it doesn’t work, and give up. It’s not the concept that fails. It’s the combination of ingredients that’s the problem.

What Is Sal Suds (And Why It Works Better for Dishes)

Sal Suds is a concentrated, plant-based household cleaner made by Dr. Bronner’s.

Unlike castile soap, which is true soap made from saponified oils, Sal Suds is a surfactant-based cleaner that is specifically formulated to cut through grease, grime, and stuck-on food.

Here’s what makes it ideal for a DIY liquid dish soap recipe:

It is stable in the presence of acids, so combining it with vinegar does not compromise its effectiveness.
It rinses cleanly without leaving a residue.
It is biodegradable and free from synthetic dyes and preservatives.
A little goes a long way as it is highly concentrated.

You can find Sal Suds on Amazon here: Dr. Bronner’s Sal Suds (affiliate link). One bottle makes many batches of this dish soap.

Is This Dish Soap Recipe Non-Toxic?

Yes, and this is one of the biggest reasons people seek out a natural liquid dish soap recipe in the first place.

Here’s what you need to know about this liquid soap recipe with Sal Suds:

• Safe for hands: Sal Suds is gentle enough for regular hand contact during dishwashing. It does not contain the harsh sulfates or synthetic preservatives found in many conventional dish soaps.
• Safe for food-contact surfaces: This soap rinses cleanly from dishes, glasses, and cookware without leaving a residue — making it fully safe for surfaces that touch food.
• Safe around kids and pets: Free from synthetic fragrances, dyes, and harsh chemicals.
• Septic-safe: Sal Suds is biodegradable and safe for septic systems.

Ingredients

• 1 cup Sal Suds
• 2 tablespoons Vinegar
• 1 cup Distilled Water
• 50 drops Essential Oil, optional (citrus oils recommended — lemon, orange, or grapefruit)
• Glass Soap Pump Bottle (8 oz or larger)

How to Make Natural Liquid Dish Soap

This comes together in about five minutes.
The process is straightforward, but please read through all four steps before you start. The order of combining ingredients matters more than you might expect.

Step 1: Gather Your Ingredients

Before you begin, set out all your ingredients and equipment: distilled water, white vinegar, Sal Suds, essential oils (if using), and your soap bottle.

Having everything ready makes the process smooth and prevents you from rushing steps out of order.

You’ll also notice three bowls in the photograph – one for the water, one for the vinegar, and a small one for combining the essential oils with the vinegar first. This is the cleanest, most controlled way to build the recipe in layers rather than combining everything at once.

Tip: Use distilled water, not tap water. Tap water contains minerals that can cause cloudiness or reduce the soap’s shelf life over time.

Step 2: Add Essential Oils to the Vinegar

If you’re using essential oils, add your 50 drops directly into the vinegar first. Do not add the oil directly into the water. Essential oils don’t mix well with plain water and will float on the surface.

Vinegar helps the essential oil disperse more evenly, creating a better-blended finished soap.

Stir briefly with a small spoon or swirl the bowl gently. You don’t need to fully emulsify it, just make sure the oils aren’t sitting in a pool on top.

Tip: Citrus essential oils such as lemon, orange, and grapefruit are the best pairings for dish soap. They smell clean and fresh without being overpowering.

Note: Skip this step if you’re looking for an unscented dish soap. It will work just as well.

Step 3: Combine the Liquids

Pour the vinegar and essential oil mixture into the distilled water and stir gently to combine. Gently is key here. No need to mix vigorously.

Your water base is ready to go into the bottle.

This step is straightforward, but it’s worth noting: you’re intentionally combining the liquids before the Sal Suds goes in.

Adding the soap to water, not water to soap, minimizes the amount of foam created during mixing.

Don’t: Don’t whisk or stir vigorously. You want to combine, not aerate. Excess bubbles at this stage make the final mixing step harder.

Step 4: Add to the Bottle Using a Funnel

Pour the water and vinegar mixture into the soap bottle first. Use a funnel to do this. The neck of a glass pump bottle is narrow, and pouring without a funnel can get messy.

Once the water base is in, add the Sal Suds on top. Then cap the bottle and slowly roll it between your palms to combine everything.

That’s it! Your homemade liquid dish soap with Sal Suds is ready to use.

Tip: Always add Sal Suds last, on top of the water, never the other way around. This is the single most important step for keeping foam under control.

Don’t: Don’t shake the bottle to mix. Shaking creates a lot of foam and air bubbles that take time to settle. Rolling is all you need.

Benefits of Each Ingredient in this Liquid Dish Soap Recipe

Understanding the purpose of each ingredient helps you troubleshoot, customize, and trust what you’re putting in your kitchen.

Sal Suds

This is the cleaning powerhouse of the recipe. It cuts grease, removes stuck-on food, and rinses cleanly. As covered above, it outperforms castile soap specifically for dishwashing.

Vinegar

Vinegar provides mild degreasing support and acts as a natural preservative. Because this recipe uses Sal Suds rather than castile soap, the acid in the vinegar does not reduce the soap’s effectiveness.

This is a key difference from other DIY dish soap recipes. You may notice very slight cloudiness in your finished soap; this is normal and does not affect performance.

Distilled Water

Tap water contains minerals that can interact with the soap over time, causing cloudiness, separation, or a shortened shelf life. Distilled water is mineral-free, giving you a cleaner, more stable end product. It’s inexpensive and widely available at grocery stores.

Essential Oils — Optional

Essential oils are purely for scent in this recipe. Citrus oils such as lemon, orange, and grapefruit are a natural pairing with dish soap and give the finished product a clean, fresh smell.

This guide to spring cleaning with essential oils is a great place to explore more ways to use citrus oils around the home.

Check out this list of the best essential oils for spring if you’re looking for ways to fill your home with light, fresh scents all year round.

Tips for Best Results

Roll, don’t shake. Every time you pick up the bottle, resist the urge to shake it. Gentle rolling keeps the formula smooth.
Slight cloudiness is normal. The vinegar can cause very mild cloudiness. This does not affect cleaning performance.

Use a glass pump bottle. Glass holds up better over time than plastic, especially with acidic formulas. It also looks beautiful on the counter.

A little goes a long way. Sal Suds is concentrated, so you don’t need as much per wash as conventional dish soaps. Start with less than you think you need.

Shelf Life and Storage of Homemade Liquid Dish Soap

This dish soap keeps well for 4–6 weeks at room temperature. The vinegar acts as a mild natural preservative, helping extend its shelf life. Because it doesn’t contain synthetic preservatives, making it in small 8-oz batches ensures freshness.

Store it away from direct sunlight and heat, and always keep the pump bottle closed between uses. If the formula looks unusual or smells off before the 4–6 week mark, it’s time to mix a fresh batch.

The DIY Dish Soap That Actually Works

Making your own natural liquid dish soap doesn’t have to mean sacrificing performance or eco-friendliness.

With Sal Suds as the base, you get a plant-derived, non-toxic formula that genuinely cuts grease, rinses clean, and costs a fraction of what you’d pay at the store.

The recipe takes five minutes, lasts up to six weeks, and works on everything from oily pans to everyday glasses. Once you try it, the store-bought version is hard to justify.

Your turn to try it!

Frequently Asked Questions