Castile Soap Benefits & 14 Ways To Use It To Clean Every Room

For those thinking of picking up a bottle or bar, here's exactly what Castile soap is, how it differs from other cleaners, and 14 recipes to help you get the best use of it in every room.

Nowadays, "Castile is truly a multipurpose soap and very popular among people who want to live a cleaner, healthier, and more natural life," says Loni Brown, the founder and CEO of EntirelyEco. In addition to the original olive oil blend, you'll also find solid and liquid Castile soaps made with coconut oil, palm kernel oil, or hemp oil. "The term is now used a little more generally for a vegetable-based soap," says Bronner.

Over the past century, many soaps have been replaced by detergents, which are made from synthetic ingredients instead of vegetable or animal fats. Bronner notes that if you take a walk down a typical cleaning aisle, most of the bottles you see will be detergents.

Here are a few things that set Castile soap apart from other cleaners:

This means that a high-quality Castile soap can replace dozens of other cleaning products, saving you some money, packaging waste, and storage space.

Unlike animal-derived soaps, the oils in Castile soap come from plants that will naturally regenerate. And since it requires less land and water to raise a coconut than a cow, Castile soaps tend to be less resource-intensive to produce. And of course, no animals are harmed in the making of the product.

Detergents can be made using any number of synthetic ingredients—some of which can pollute waterways1 when washed down the drain. This isn't a concern with Castile soap, as it's biodegradable and will completely break down in the environment within years. This makes it a popular choice among campers looking to leave no trace in the backcountry.

Bronner adds that unlike harsher products, plant-based soaps don't strip the skin of its beneficial natural oils. Castile soaps made with more moisturizing oils like coconut and jojoba tend to be the most nourishing for bath time.

You can take unscented Castile soap up a notch by adding a few drops of your favorite essential oil(s). (But remember—less is more with these!) It's also easy to play around with the potency of liquid Castile. Most bottles contain a concentrated mix of soap that you can dilute to your liking depending on what you're looking to clean or wash.

"Castile soap is readily available from health food stores and online retailers," notes Jen Chillingsworth, author of the upcoming book Green Living: A Sustainable Guide to a More Intentional Life. She recommends looking for Castile soaps that are free of coloring, preservatives, or fragrances (other than essential oils).

In reality, we don't and would be better off using multipurpose cleaners like Castile all around our homes. Get started with these 14 room-by-room ideas.

Hard-water folks can follow the recipe tweaks below to keep streaks to a minimum.

Combine ¼ cup of Castile soap with 1 quart of distilled water in a spray bottle for a cleaner that can be used on all types of surfaces. Keep this one easily accessible so you can grab it in a pinch.

This should also work for sensitive soft stones like marble or limestone.

If you have hard water: To prevent streaks, dry your dishes by hand or dip your dishes into a vinegar rinse (a few dashes of distilled white vinegar in water) after washing them. "Any minerals brought out by the soap will be carried away by the vinegar," Bronner explains.

Place equal parts soap and water into your dishwasher dispenser. Brown notes that her dishes do come out clean with this method, though not as shiny as they might with a synthetic pod.

To wipe off any lingering dirt, pesticides, or pests from fresh produce, Bronner likes to rub them down with a pump of the dish soap blend. Rinse well before storing or eating.

Quickly wipe upholstery spills with a damp cloth. Then, spray your Castile all-purpose spray on the stain, and run your damp cloth over it again before letting it dry. "The key is you need to get all the soap out," says Bronner. "If you leave it, it will hold on to dirt, and stains will stick around."

Use the same process as you would for upholstery. Remember to act fast so the stain doesn't have time to settle in.

Wipe down your tropical plants' leaves with a solution of 1 tablespoon of Castile soap per quart of water to help prevent bugs and pests. Avoid desert varieties like cactuses, as they prefer dry leaves anyway.

If you have hard water: Add ½ cup vinegar to the rinse cycle to wash away any lingering film.

Place one to two drops of liquid Castile soap (or a swipe of solid Castile) directly onto stains and rub it in as a pretreatment. Let the garment soak in water before laundering.

Castile soap is a gentle body wash that's safe for both adults and babies (Brown notes it's the only soap she used on her children until they were about 6 months old). Most people will be able to apply it directly, but those with very sensitive skin can dilute it in water before lathering up.

Castile soap is also safe to use on pet hair.

Work a few drops of Castile soap into a lather in water and then apply and shave away.

Dilute 2 tablespoons of liquid Castile soap into a cup of water and place in your sink-side dispenser. Chillingsworth adds that you can also keep a bar of solid Castile soap next to your bathroom and kitchen sink for handwashing.

Combine warm water and Castile soap into a gentle rinse for all your dirty brushes. Full recipe here.

Castile soap is a simple yet versatile product that can be used a million (well, at least 14) ways at home. Swap it in for one of your harsher cleaners and you'll be well on your way to a safer, more eco-friendly sanctuary.