Are Legos Dishwasher Safe

Lego bricks have been captivating the imaginations of both kids and adults for generations. Their versatility, durability, and endless possibilities for creativity make them a beloved toy. However, with regular use, Legos tend to accumulate dirt, grime, and the occasional sticky substance. This begs the question: Are Legos dishwasher safe? In this article, we’ll explore the practicality and safety of cleaning your Lego collection in the dishwasher.

The Appeal of Lego Toys

Lego sets come in various themes, from classic cityscapes to intricate space stations and everything in between. These colorful plastic bricks are renowned for sparking creativity and problem-solving skills among children and providing a nostalgic sense of joy for adults. The more Legos you collect, the greater the need to maintain their cleanliness.

The Need for Cleaning Legos

Over time, Legos can gather dust, food particles, and even pet hair if they’re left lying around. For families with young children who frequently play with Legos, this accumulation is inevitable. The grime not only diminishes the visual appeal but can also harbor germs and allergens, making it essential to clean your Lego pieces periodically.

Can You Safely Put Legos in the Dishwasher?

The short answer is yes; you can put Legos in the dishwasher. Lego bricks are made from high-quality ABS plastic, which is generally heat-resistant and can withstand water exposure. However, several precautions must be taken:

1. Use a Mesh Bag: To prevent smaller Lego pieces from getting lost or damaged during the wash cycle, place them in a mesh bag or pillowcase.

2. Skip the Heat: Avoid using hot water or a heated drying cycle, as excessive heat can warp or deform the Lego bricks.

3. Mild Detergent: Use a mild dishwashing detergent to ensure that the Legos are thoroughly cleaned without damaging the plastic.

4. Gentle Cycle: Opt for a gentle or delicate cycle to minimize the risk of Lego pieces colliding and causing breakage.

Risks of Dishwashing Legos

While dishwashing Legos can be effective, it’s not entirely risk-free. There are some potential downsides to this cleaning method:

1. Color Fading: Frequent dishwasher cleaning may cause the colors of Lego bricks to fade over time.

2. Potential Damage: Although Lego bricks are durable, repeated dishwasher cycles can lead to wear and tear, particularly if they are old or have been subjected to heavy play.

3. Lost Pieces: Without proper containment in a mesh bag or pillowcase, smaller Lego pieces may be lost in the dishwasher.

Alternative Methods for Cleaning Legos

If the idea of dishwashing your Legos makes you uneasy, there are alternative methods to consider:

1. Hand Washing: Fill a basin with warm, soapy water and gently scrub each Lego piece with a soft brush or cloth.

2. Toothbrush Technique: Use an old toothbrush to clean hard-to-reach areas and crevices.

3. Air Drying: Lay the Lego pieces out to air dry, ensuring they are thoroughly dry before storage to prevent mold growth.

The Importance of Regular Lego Maintenance

Regardless of the cleaning method you choose, regular Lego maintenance is crucial. Periodically inspect your Lego pieces for signs of wear, breakage, or missing parts. Replace damaged bricks to maintain the structural integrity of your creations and the safety of your child’s playtime.


In conclusion, Lego bricks can indeed be cleaned in the dishwasher, but it’s essential to take precautions to minimize potential risks. If you prefer a gentler approach, hand washing and air drying are viable alternatives. Whichever method you choose, the key is to ensure your Lego collection remains clean and safe for continued enjoyment.


1. Can I use bleach to clean Legos? It’s not recommended to use bleach, as it can damage the plastic and cause color fading.

2. How often should I clean my Legos? Regular cleaning every few months is ideal, but it depends on how frequently they are used.

3. Can I put Lego minifigures in the dishwasher? It’s best to hand wash minifigures to prevent damage to delicate parts and decals.

4. Are there Lego-specific cleaning products available? Yes, there are specialized Lego cleaning solutions, but mild dish soap works just as well.

5. Can I clean electronic Lego sets in the dishwasher? It’s not recommended for sets with electronic components, as water exposure can damage them.

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