May 2026

How to Wash Cloth Diapers, Complete Guide for Parents

A toddler with small pigtails sitting in a blue bubble bath, holding a yellow washcloth up to their mouth, with a bottle of The Unscented Company Gentle Baby Wash & Shampoo sitting on the edge of the tub.

Switching to cloth diapers quickly raises a practical question: how to wash cloth diapers every day so they stay absorbent, soft and clean after months of use.

The routine isn't complicated once the right habits are in place. This guide covers every step, from storage between washes to occasional stripping, based on manufacturer recommendations and practices used by parents in Quebec.

Table of contents

Getting ready before washing cloth diapers

A diaper properly prepared for the laundry makes washing more effective and limits odours between loads.

Common steps before placing diapers in the wash bag include:

  • removing solid waste into the toilet, using a sprayer or a disposable diaper liner
  • unfolding and detaching inserts from pockets so water can circulate properly
  • placing diapers in a mesh bag or a ventilated pail, never in an airtight container
  • avoiding letting diapers soak in water, which can weaken elastics and seams

Storage between washes should be dry. A pail fitted with a washable mesh bag is enough to collect dirty diapers for two or three days. Air circulation reduces bacterial growth and makes the work of the laundry detergent easier afterward.

A man sitting on a white sofa holds a woven laundry basket filled with clothes, wool dryer balls, and a 1.95L bottle of The Unscented Company laundry detergent, with a pouch the laundry whitener (1 kg) on the table in the foreground.

What routine to follow for washing cloth diapers

Most manufacturers recommend a two-step routine. This structure removes soiling first, then cleans thoroughly.

The cold or lukewarm pre-wash

A short first cycle in cold or lukewarm water, without detergent or with a very small amount, rinses away urine and fecal residue. This step prevents soiling from setting into the fibres during the main cycle.

The main hot water wash

Next comes a long cycle in hot water, generally between 40°C and 60°C depending on the manufacturer's recommendations. The detergent dose should match a heavily soiled load, which often means a full dose rather than half.

The machine should be full enough to create friction between the diapers, but not overloaded. A useful rule: the drum should be three-quarters full before starting.

The final rinse

An extra rinse finishes the routine. It removes the last traces of detergent and limits residue that could irritate the baby's skin or reduce absorption.

Adapting the routine to your machine type

Front-loading machines use less water than top-loading models. A slightly lower detergent dose along with systematically adding an extra rinse compensates for this difference.

On a top-loading machine with a central agitator, the diapers benefit from the drum's natural mechanical friction. A well-balanced load evenly distributed around the agitator is usually enough for a thorough clean.

A man kneels in a living room, refilling a 1.95L bottle of The Unscented Company laundry detergent from a cardboard refill box placed on a white coffee table. A woven laundry basket sits in the blurred background.

Choosing a detergent for washing cloth diapers

The choice of detergent directly affects how long diapers last and the baby's comfort. Three criteria dominate the recommendations.

The detergent should clean thoroughly, leave no film on the fibres, and be suitable for young skin that is often reactive. Highly sudsing formulas, those rich in fabric softener, or those containing oils can clog the absorbent fibres and cause what's known as buildup.

For young skin, a fragrance-free detergent is a common starting point.

Things to avoid in diaper detergent include:

  • liquid or sheet fabric softeners, which leave a hydrophobic film on the fibres
  • chlorine bleaching agents used with every wash, which weaken elastics
  • pure oil-based oils or soaps, which can clog inserts
  • wax-based softeners, which reduce absorption

How often to wash diapers

How often you should wash cloth diapers depends on the number of diapers in rotation and the baby's age. A newborn typically uses between 10 and 12 diapers a day, while an older baby uses 6 to 8.

The table below gives benchmarks based on stock size.

Number of diapers in rotation Recommended washing frequency Practical benchmark
18 to 24 diapers Every 2 days Most frequent routine, ideal for newborns
24 to 30 diapers Every 2 to 3 days Good balance between stock and washes
30 diapers or more Every 3 days Comfortable stock, watch for odours

Beyond three days between washes, odours and the ammonia contained in urine can start to weaken the fabric. If the routine often strays from these benchmarks, a periodic stripping cycle becomes useful.

Stripping cloth diapers

Stripping is a deep-reset wash done every three to six months, or when diapers show signs of buildup. The Canadian Paediatric Society notes that frequent changes and rigorous diaper care limit skin irritation, such as diaper rash.

Before considering stripping, check that your everyday cloth diaper washing routine already includes the right habits. Signs of buildup to watch for include:

  • reduced absorption, with leaks that have appeared recently
  • a strong ammonia smell when opening the wash bag
  • a persistent greyish or yellowish tint despite washing
  • a rough or stiff feel to the inserts

The most common stripping method is to wash very clean, already spun diapers with a maximum dose of detergent, in a lightly loaded machine, at the hottest water temperature tolerated by the manufacturer. Several successive rinses follow, until all suds are completely gone.

Some families add a diluted white vinegar step to neutralize minerals left by hard water. This step isn't always necessary and should remain occasional, since repeated vinegar use can damage elastics.

4L box of unscented cleaning vinegar used to rinse hard water minerals

To work these steps into a sustainable routine, several Canadian brands offer concentrated, fragrance-free detergents and refill formats suited to repeated diaper washing.

The influence of water hardness

Water quality plays an often underestimated role in washing performance. Very hard water, rich in calcium and magnesium, reduces detergent effectiveness and encourages mineral deposits in the fibres.

In Quebec, hardness varies from region to region. Several municipalities publish this data in their annual drinking water quality report. According to the Guidelines for Canadian Drinking Water Quality, water is considered hard above 120 mg/L of calcium carbonate. Above this threshold, adding a fabric-safe water softening agent can improve cleanliness and reduce how often stripping is needed.

Drying and long-term care

Once the steps for washing cloth diapers are done, drying affects how long diapers last just as much as washing does. Cotton or hemp inserts handle moderate-temperature dryer heat well. TE1 or TE2 covers with a PUL membrane benefit from air drying to preserve waterproofing.

A few simple habits extend the life of your stock. Alternate inserts and covers in your routine to spread out wear. Regularly check elastics and snaps, which are easy to replace on most models. Avoid drying on a radiator or in prolonged direct sunlight, which weakens the fibres.

For machine drying, wool dryer balls speed up drying time and eliminate the need for a fabric softener sheet, which has no place with cloth diapers.

A man in a light blue t-shirt holds a woven laundry basket filled with clothes, wool dryer balls, and a 1.95L bottle of The Unscented Company laundry detergent. He is standing indoors near a white staircase railing, looking to the side.

Conclusion

Washing cloth diapers properly relies on a simple routine: a cold pre-wash, a hot cycle with the right dose of fragrance-free detergent, a final rinse, and occasional stripping. Combining these steps keeps diapers absorbent longer and comfortable for the baby.

To find the detergent format that matches a regular washing routine, the full selection of laundry products brings together several options compatible with cloth diapers.

FAQ

What detergent should be used to wash cloth diapers?

For washing cloth diapers, a concentrated, fragrance-free detergent, free of dyes and fabric softener, suits most models available on the market. The dose should match a heavily soiled load, which often means a full dose as recommended by the detergent manufacturer. Formulas with an ingredient list published in INCI nomenclature make it easier to check the composition before buying.

Should new cloth diapers be pre-washed?

Yes, this is a key step before first use on the baby. New diapers often contain natural oils found in hemp or bamboo, which temporarily reduce the fabric's absorbency. Three to five hot washes with detergent, without the baby wearing them, are usually enough to reach full absorbency. Organic cotton diapers sometimes need a few extra cycles to reach full performance.

Can cloth diapers be washed with other clothes?

It's best to wash them separately for several reasons. Diapers require a detergent dose and cycle suited to heavily soiled laundry, which isn't ideal for regular clothing. A dedicated cycle also prevents residue transfer between loads and allows better control of temperature and wash duration based on how soiled the diapers are.