Home Made Detergent: Complete Guide for Homeowners

A single bottle of Tide Original 92 oz runs about $22 at Walmart and washes roughly 64 loads, putting commercial detergent at 34 cents a load before you factor in the plastic jug. Home made detergent drops that to between four and twelve cents a load with ingredients that store in a glass jar for two years. The cost math is the obvious selling point, but the real reason to mix your own is allergen control: no synthetic fragrance, no optical brighteners, no surfactants flagged by people with sensitive skin.

What Detergent Actually Does

Three jobs: lift soil off fabric, suspend it in the wash water so it does not redeposit, and rinse cleanly without leaving residue. Surfactants do the lifting, builders soften the water so the surfactants work, and enzymes (in commercial blends) break down protein and starch stains. Home made versions skip enzymes, which means they need slightly more agitation and warmer water to match commercial cleaning power on greasy or food stains.

The Classic Powder Recipe

• 1 bar Fels-Naptha or Zote soap (5.5 oz), finely grated
• 1 cup borax (20 Mule Team)
• 1 cup washing soda (Arm & Hammer Super Washing Soda)
• 1/2 cup baking soda
• Optional: 20 drops lavender or lemon essential oil

Mix in a glass jar. Use 1 to 2 tablespoons per regular load, 3 tablespoons for heavily soiled work clothes. Yields about 40 loads at roughly six cents each. Total ingredient cost runs $2.40 to $2.80 for the batch.

Important note: washing soda is sodium carbonate at pH 11.5, not the same as baking soda. Borax is sodium borate at pH 9.5. Both raise water alkalinity to help surfactants cut grease.

The Liquid Recipe That Actually Works

Powder is easier, but cold-water washers and front-loaders often complain about powder not dissolving. The liquid version:

1. Grate 1 bar of Fels-Naptha into 4 cups of hot water on the stove
2. Stir until fully dissolved, about 10 minutes on low heat
3. Pour into a 5-gallon bucket with 1 cup borax and 1 cup washing soda
4. Add 4 cups hot water and stir until all powders dissolve
5. Fill the bucket to the 4-gallon mark with cold water
6. Let sit 24 hours; the mixture gels
7. Stir to break the gel and decant into used detergent bottles

Use 1/2 cup per HE-load, 3/4 cup for top-loaders. Yields about 128 loads at four cents each. Shake the bottle before each use because the mixture separates.

HE Washers and Front-Loader Considerations

High-efficiency washers need low-sudsing detergent. The Fels-Naptha base sudses moderately, which most HE machines tolerate, but never exceed the recommended dose. Excess suds cushion the agitation and clothes come out gray. If you see foam in the door window, cut the dose in half on the next load. For LG, Samsung, and Whirlpool HE units, the liquid version works better than the powder.

Dish Detergent for Hand Washing

A separate recipe handles dishes:

• 1 cup unscented castile soap (Dr. Bronner’s Pure-Castile Liquid)
• 3 cups warm water
• 1 tablespoon white vinegar
• 2 teaspoons washing soda dissolved in 1/4 cup hot water
• 15 drops lemon essential oil

Combine in a foaming pump bottle. Squeeze one pump per pan. Cost runs about $0.04 per dish session. Dr. Bronner’s at Whole Foods is $14 for 32 oz, which makes ten batches.

Dishwasher Powder: Tricky But Possible

This is the hardest formulation to nail because automatic dishwashers need a low-sudsing detergent that handles food and hard water both. A working recipe:

• 1 cup washing soda
• 1 cup borax
• 1/2 cup citric acid (Milliard or Anthony’s brand)
• 1/2 cup kosher salt

Use 1 tablespoon per load. Always fill the rinse aid compartment with white vinegar; without it, glasses come out cloudy. Skip this version if your home has hard water above 10 grains per gallon; commercial enzyme-based pods like Finish or Cascade outperform any DIY in that case.

The Brand Spotlight on Ingredients

20 Mule Team Borax in the 65 oz box runs $7.50 at Walmart. Arm & Hammer Super Washing Soda in the 55 oz box runs $5.40. Fels-Naptha soap bars sell for $1.30 each in the laundry aisle. Zote bars cost $1.50 and come in white or pink with a citronella scent. All three brands have been sold for over 80 years; supply is reliable. Avoid any product labeled “borax substitute,” since the chemistry is meaningfully different.

Cost Per Load Showdown

• Tide Original liquid: $0.34 per load
• Costco Kirkland Signature: $0.14 per load
• Home made powder: $0.06 per load
• Home made liquid: $0.04 per load

A family of four running six loads a week saves roughly $90 a year on the liquid version, $200 on the powder versus name-brand. Over five years that is real money.

Storage, Safety, and What Not to Mix

Never combine borax or washing soda with bleach or ammonia. The resulting fumes are toxic. Store powders in glass or sealed plastic, away from humidity, since washing soda absorbs moisture and clumps. Keep all home made cleaners labeled and out of reach of children; borax in particular is irritating if ingested.

When Home Made Falls Short

Heavy grease (motor oil, kitchen grease), red wine, blood, and tomato sauce stains often need an enzyme pre-treatment that home made detergent cannot match. Keep a $5 bottle of OxiClean MaxForce on hand for spot pre-treatment, and you cover the gap without abandoning the DIY base detergent. Most loads do not need it.

The Honest Verdict

Home made detergent works exceptionally well for everyday wash loads, costs a fraction of commercial brands, and removes most of the synthetic chemistry from your laundry. It does not replace stain-fighting enzymes for the worst messes. Mix one batch of the liquid recipe this weekend, use it for a month, and decide for yourself whether the price savings justify the 15-minute monthly mix.