How To Use Castile Soap
Eliminate Harsh Cleaners Today With One Multi Purpose Liquid Castile Soap That Does It All: For Skin, Dishes, Floors, Laundry, And More.
Real Liquid Castile Soap is made the traditional way with natural oils and glycerine, so it is gentle on skin, effective on dirt, and versatile enough to replace multiple products.
Most so-called liquid soaps are not soap at all. They are detergent blends designed to foam, strip, and irritate. You feel it on your hands. You see it on your skin. And you smell it long after you finish cleaning. Each one is packed with harsh chemicals you would never willingly put on your skin. Yet somehow, they end up everywhere. On your hands. On your counters. On your food. And if you have sensitive skin, kids, pets, you are constantly worried how you may react to a new cleaner.
Authentic Castile soap works differently. Made from real natural oils, it cleans without leaving behind chemical residue. Use it in the shower as a body wash or hand soap. Clean dishes, floors, windows, and stoves. Tackle laundry and bathroom cleaning. Safely wash makeup brushes and rinse pesticides from produce. Even use it as a gentle plant wash.
One product replaces an entire cabinet of cleaners and gives you peace of mind every time you use it.
What is Castile Soap?
Originally from the Castile region of Spain, Castile soap has been used for centuries as a gentle, effective cleaner for both personal care and household use. Castile soap is a true soap made from plant-based oils, traditionally olive oil, that’s created by combining natural oils with an alkali (sodium hydroxide for solid soap or potassium hydroxide for liquid soap) through the classic soap-making process.
Modern versions, like Mountain Sky Soap’s, may use a blend of vegetable oils, but the principle remains the same: simple ingredients, real soap chemistry, and natural glycerin left intact for a milder, more moisturizing cleanse. It is free of detergents, added glycerin, synthetic foaming agents, petrochemicals, sugar thickeners , or artificial antibacterials.
Castile Soap Uses & Recommended Dilutions
Because it is concentrated, biodegradable, and incredibly versatile, castile soap can be diluted and used in so many ways. Here are a few uses, with their dilution recommendations:
Note: Castile soap is concentrated, not thick. Always dilute to avoid residue, clogging, or irritation.
Shower Body Wash, Hand and Face Wash, or Shampoo dilution:
- 1 part Castile soap to 3 parts water
- Use in a pump or foam dispenser
- Gentle enough for daily use on sensitive skin
- Naturally antibacterial without drying your hands
- Use sparingly as a shampoo or face wash. You can use our shampoo bars and soap bars regularly
Bathroom & Toilet Cleaning dilution:
- 1 teaspoon Castile soap and 1 tablespoon baking soda in 2 cups hot water
- Cuts grease without harsh fumes
- Do not use on wood surfaces
ALL-PURPOSE CLEANER, for the Kitchen & Home Surfaces, dilution:
- 1 teaspoon Castile soap in 2 cups hot water
- Add baking soda for extra scrubbing power
- Safe for sinks, tubs, tiles, and toilets
Makeup Brush Cleaner dilution:
- 1 teaspoon Castile soap in 1 cup warm water
- Swirl brushes gently, rinse well, reshape, and air dry
Dish Washing dilution:
- 1 teaspoon Castile soap in 2 cups hot water
- Use for hand-washing dishes only
- Cuts grease without synthetic detergents
Window Cleaner dilution:
- ½ teaspoon Castile soap in 2 cups water
- Mix and add to spray bottle. Spray and wipe clean
- Rinse with vinegar and water to prevent streaks
Laundry (Soft Water Only)
- Normal Laundry: ½ cup Castile soap diluted in 1 gallon (4 liters) of hot water, per load
- Extra Dirty Laundry: 1 cup Castile soap diluted in 1 gallon (4 liters) of hot water, per load
- Do not use: in hard water or high-efficiency machines
- Not suitable for wool or silk, or a cold water setting
You may add these to you laundry, adding the same quantity as the liquid Castile soap:
- Borax – bleaches, whitens and brightens- Do not use for cleaning food areas.
- Washing Soda (sodium carbonate)-is a very strong cleaner of dirt and oil, use gloves when handling.
- Baking Soda (sodium bi-carbonate)-is a milder version of washing soda
Remove Pesticides From Produce dilution:
- ¼ teaspoon Castile soap in 1 bowl of water
- Soak produce briefly, scrub gently if needed
- Rinse thoroughly with clean water
Floor Washing dilution:
- ½ cup Castile soap in 2 gallons (8 liters) hot water
- Safe for tile, vinyl, laminate
- Do not use on unfinished wood
Plant Pest Control (Insecticidal Wash) dilution:
- 1 teaspoon Castile soap per quart (1 liter) of water
- Spray leaves lightly
- Test on a small area first and rinse plants after 24 hours
Car Wash dilution:
- Mix 1–2 tablespoons of liquid Castile soap per 1 gallon (4 liters) of water
- Use a soft sponge or microfiber mitt. Rinse thoroughly with clean water
- Use less soap rather than more to avoid residue
How To Use Castile Soap for Camping
When space is limited and you want to travel lighter, liquid Castile soap is one of the most useful items you can pack. One small bottle can replace multiple products, making it ideal for camping, van life, hiking trips, and off-grid adventures.
You can use all the recipes stated above.
Why Castile Soap Is Perfect for Camping
- Replaces many single-use products
- Lightweight and compact
- Versatile for body care, dishes, and cleaning
- No need to carry multiple bottles
Always use small amounts and follow Leave No Trace principles. Even natural soap should be used 200 feet (61 meters) away from lakes, rivers, and streams.
Visit our Product FAQ page for extensive details on our products.
Final Thoughts
Castile soap proves that one thoughtfully made product can truly do it all. By choosing an authentic, natural liquid castile soap, you’re simplifying your routine, reducing chemical exposure, and cutting down on clutter and waste—without sacrificing effectiveness.
After decades of experience crafting natural body and home care products, we’ve seen firsthand that simple ingredients and traditional soap-making methods still deliver the best results. When you understand how to use castile soap properly, it becomes more than just a cleaner—it becomes a reliable, everyday essential for a healthier home, body, and planet.
⇒ Start With One Bottle to Eliminate Chemical Cleaners Without Sacrificing Results
