Hats are a staple accessory that can complete an outfit, protect you from the sun, and showcase your personal style. However, they tend to collect sweat, dirt, and oils, making regular cleaning essential. While many people assume that hats should only be washed by hand, using a dishwasher can be a surprisingly effective and safe method—if done correctly.
Washing hats in the dishwasher preserves their shape better than a washing machine, making it an excellent option for structured caps, such as baseball caps. However, not all hats are suitable for dishwasher cleaning, so it’s essential to understand the process and precautions.
In this detailed guide, you’ll learn how to wash hats in the dishwasher step by step, what hats can be washed, and how to maintain them properly for long-lasting wear.
Contents
Can You Wash Hats in the Dishwasher?
Yes, but only certain types of hats can be safely washed in the dishwasher. This method is particularly effective for:
- Baseball caps (especially those made of polyester or cotton)
- Snapback hats
- Trucker hats
- Sun hats with a firm brim
Avoid washing hats in the dishwasher if they are:
- Wool or cashmere – These materials can shrink and lose their shape.
- Delicate or embellished – Hats with beads, embroidery, or delicate fabric may not hold up well.
- Fitted caps with cardboard brims – Some older hats have cardboard in the brim, which can get ruined by water.
Checking the care label inside the hat is always a good idea before attempting to clean it in the dishwasher.
Benefits of Washing Hats in the Dishwasher
Washing hats in the dishwasher has several advantages compared to traditional cleaning methods:
- Maintains shape – Unlike washing machines, dishwashers don’t have an agitator, which helps hats retain their structure.
- Hands-free cleaning – No need for scrubbing or soaking.
- Effective sweat removal – Dishwasher detergent can break down sweat and grime effectively.
- Can wash multiple hats at once – Saves time compared to hand washing.
However, it’s important to use the correct settings and avoid high heat to prevent warping or fading.
How to Wash Hats in the Dishwasher (Step-by-Step Guide)
Step 1: Gather Your Materials
Before you start, make sure you have the right supplies:
- A dishwasher-safe hat cage or cap washer (optional but recommended)
- Mild dishwashing detergent (avoid bleach or harsh chemicals)
- Clothespins or a drying rack
Step 2: Prepare the Hat
- Remove any stickers or decorations that could be damaged by water.
- Check for stains – If your hat has heavy sweat stains, pre-treat them by gently scrubbing with a mild detergent and water.
- Place the hat in a hat cage – A hat cage (or cap washer) helps maintain the shape of the hat during the wash cycle. If you don’t have one, secure the hat in the top rack using clothespins.
Step 3: Load the Dishwasher
- Place the hat in the top rack – Never put it on the bottom rack, as the heat and pressure from the spray arms can be too strong.
- Do not wash with dirty dishes – The grease and food particles from dishes can transfer onto the hat.
- Add other hats if needed – Multiple hats can be washed at once, as long as they fit securely in the top rack.
Step 4: Choose the Right Dishwasher Settings
- Use a gentle or low-heat cycle – Avoid high temperatures that can cause shrinkage.
- Turn off the drying function – Heat drying can warp the brim.
- Use a mild detergent – Avoid detergents with bleach, as they can discolor the hat.
Step 5: Start the Wash Cycle
Run the dishwasher on a gentle cycle with cool or warm water. The hat will be gently cleaned without harsh agitation.
Step 6: Air Dry the Hat
- Remove the hat immediately after the cycle finishes to prevent any heat exposure.
- Let it air dry on a towel or drying rack – Avoid placing it in direct sunlight, which can cause fading.
- Reshape the hat while damp – If necessary, use your hands to gently reshape the brim and crown.
Do not use a clothes dryer, as the heat can ruin the hat’s structure.
How to Spot Clean Stains Before Dishwashing
If your hat has stubborn sweat stains, pre-treating it before washing in the dishwasher can improve the results.
Sweat Stains
- Mix baking soda and water into a paste.
- Apply to the stained area and let sit for 15-30 minutes.
- Gently scrub with a soft toothbrush before placing it in the dishwasher.
Grease Stains
- Use a small amount of dish soap and rub it into the stain.
- Let sit for 5-10 minutes before washing.
Water Stains
- Dampen a clean cloth and gently blot the stain with warm water.
- Avoid rubbing, as this can spread the stain.
Alternative Hat Washing Methods
If you’re unsure about using the dishwasher, here are other ways to wash hats safely:
Hand Washing
- Fill a sink with cool water and mild detergent.
- Gently scrub with a soft brush or cloth.
- Rinse thoroughly and air dry.
Washing Machine (Only for Sturdy Hats)
- Use a gentle cycle with a cap washer in cold water.
- Air dry completely before wearing.
Both methods work well, but the dishwasher method is best for preserving the hat’s shape.
Common Mistakes to Avoid
- Using hot water – Can cause shrinkage and fabric damage.
- Skipping the hat cage – Can lead to misshapen hats.
- Using bleach-based detergent – Can discolor the fabric.
- Leaving the hat in the dishwasher too long – Heat from drying cycles can warp the brim.
By avoiding these mistakes, you’ll ensure your hat stays in great condition.
FAQs About Washing Hats in the Dishwasher
Can I wash a hat in the dishwasher with dishes?
It’s not recommended. Food residue and grease from dishes can stain or damage the fabric.
Will my hat shrink in the dishwasher?
If you use hot water or a heat-drying cycle, it might shrink. Always use cool or warm water and let the hat air dry.
How often should I wash my hat?
- Every 1-2 weeks if worn daily.
- Once a month if worn occasionally.
- As needed if it gets sweaty or dirty.
Can I put my hat in the dryer after washing?
No, dryers can warp the brim and ruin the hat’s shape. Always air dry.
Conclusion
Washing hats in the dishwasher is a convenient, safe, and effective method—when done correctly. By following the step-by-step guide, you can remove dirt, sweat, and odors while keeping your hat in top shape.
Just remember to use cold or warm water, avoid heat drying, and air dry properly. With the right care, your favorite hats will stay clean, fresh, and structured for years to come!