Liquid Chlorine Bleach for Washing Machine: What Works and What to Avoid

You want to use liquid chlorine bleach to clean your washing machine. Maybe you have a severe mold problem, or you want to disinfect the machine. Liquid chlorine bleach is a powerful disinfectant that kills mold, bacteria, and viruses. But using bleach in a washing machine has risks. Here’s what works and what to avoid when using liquid chlorine bleach for your washing machine.

Liquid chlorine bleach (sodium hypochlorite, 5 to 6% concentration) is a strong disinfectant that kills mold, bacteria, and viruses. It’s effective for disinfecting washing machines but can damage rubber seals, gaskets, and some metal parts with repeated use. Bleach should be used sparingly (every 3 to 6 months) and never mixed with other chemicals.

To use liquid chlorine bleach in a washing machine, add 1 cup to the drum, run an empty hot cycle on the longest setting, and wipe the seal and dispenser after. Use bleach every 3 to 6 months for disinfecting, and use affresh or vinegar for monthly cleaning. Don’t mix bleach with vinegar, don’t use bleach on rubber seals, and don’t use bleach more than once every 3 months.

What Works

Use Bleach for Disinfecting

Bleach is best for disinfecting the machine when you have a severe mold or bacteria problem. Use 1 cup of liquid chlorine bleach in an empty hot cycle.

Use Hot Water

Always use hot water with bleach. Hot water activates the bleach and helps it kill mold and bacteria.

Use the Right Amount

Use 1 cup of liquid chlorine bleach per cleaning cycle. Don’t use more than 1 cup.

Use Every 3 to 6 Months

Use bleach for disinfecting every 3 to 6 months. For monthly cleaning, use affresh or vinegar instead.

Wipe the Seal After

After using bleach, wipe the rubber seal with a cloth soaked in warm water to remove any bleach residue.

Run a Rinse Cycle After

After the bleach cycle, run an empty rinse cycle to remove any remaining bleach from the machine.

Use affresh for Monthly Cleaning

For regular monthly cleaning, use affresh Washing Machine Cleaner instead of bleach. affresh is safer for rubber seals and gaskets.

Use Vinegar as an Alternative

For a natural alternative to bleach, use 2 cups of white vinegar and half a cup of Arm and Hammer Baking Soda. Vinegar kills mold and removes odors without damaging seals.

What to Avoid

Don’t mix bleach with vinegar. Mixing bleach with vinegar produces toxic chlorine gas. Never combine them.

Don’t mix bleach with ammonia. Mixing bleach with ammonia produces toxic chloramine gas. Never combine them.

Don’t use bleach on rubber seals. Bleach can damage rubber seals and gaskets over time. Wipe seals with water after using bleach.

Don’t use bleach more than once every 3 months. Frequent bleach use can damage rubber seals, gaskets, and some metal parts. Use affresh or vinegar for monthly cleaning.

Don’t use more than 1 cup. Excess bleach can damage the machine and leave a strong odor. Use 1 cup per cleaning cycle.

Don’t use bleach with colored clothes. Bleach can fade or remove color from colored clothes. Use oxygen bleach for colored clothes.

Don’t use cold water. Cold water doesn’t activate bleach. Use hot water.

Don’t use bleach as a regular cleaner. Bleach is for disinfecting, not regular cleaning. Use affresh or vinegar for monthly cleaning.

Comparison: Bleach vs. Other Washing Machine Cleaners

Feature	Liquid Chlorine Bleach	affresh Tablets	White Vinegar
Disinfecting	Excellent	Good	Good
Mold removal	Excellent	Excellent	Good
Odor removal	Good	Excellent	Good
Residue removal	Fair	Excellent	Fair
Safety for seals	Poor (with frequent use)	Excellent	Very safe
Cost	Low	Medium	Low
Best for	Disinfecting (every 3 to 6 months)	Monthly cleaning	Monthly maintenance

How to Use Bleach to Disinfect Your Washing Machine

Step 1: Add Bleach

Add 1 cup of liquid chlorine bleach to the washer drum or to the bleach dispenser if your machine has one.

Step 2: Set to Hot and Longest Cycle

Set the machine to the hottest water setting and the longest cycle.

Step 3: Start the Machine

Start the machine and let it run the full cycle.

Step 4: Wipe the Seal

After the cycle, wipe the rubber seal with a cloth soaked in warm water to remove bleach residue.

Step 5: Run a Rinse Cycle

Run an empty rinse cycle to remove any remaining bleach.

Step 6: Leave the Door Open

Leave the door or lid open to allow the machine to dry.

Use the Right Products for Laundry

Detergent: Tide Free and Gentle

Stain removers: OxiClean Max Force Spray, Dawn Ultra Dish Soap, Shout Advanced Grease Busting Foam

Laundry sanitizer: Lysol Laundry Sanitizer

Ink remover: Amodex Ink and Stain Remover

FAQ

Can you use liquid chlorine bleach in a washing machine? Yes, but use it sparingly. Add 1 cup to the drum and run an empty hot cycle. Use bleach every 3 to 6 months for disinfecting, and use affresh or vinegar for monthly cleaning.

How much bleach do you use to clean a washing machine? Use 1 cup of liquid chlorine bleach per cleaning cycle. Don’t use more than 1 cup.

Can you mix bleach and vinegar in a washing machine? No. Mixing bleach and vinegar produces toxic chlorine gas. Never combine them. Use one or the other.

Does bleach damage washing machine seals? Yes, with frequent use. Bleach can damage rubber seals and gaskets over time. Use bleach every 3 to 6 months and use affresh or vinegar for monthly cleaning.

What is the best alternative to bleach for cleaning a washing machine? affresh Washing Machine Cleaner is the best alternative. It kills mold, removes residue, and eliminates odors without damaging seals. Use one tablet monthly.

References

1. Tide. “Bleach in Washing Machine Guide.” tide.com.
2. The Spruce. “Bleach for Washing Machine Guide.” thespruce.com.
3. Good Housekeeping. “Washer Cleaning Guide.” goodhousekeeping.com.
4. affresh. “Cleaning Guide.” affresh.com.