Keeping Your Bricks Fresh: A Guide to Cleaning LEGO

If you're an AFOL (Adult Fan of LEGO) or a parent with kids who love building, you’ve probably faced the challenge of keeping your LEGO collection clean. Whether it's dust, dirt, or sticky fingerprints, LEGO bricks need occasional maintenance to stay in top shape. Cleaning them properly not only keeps them looking fresh but also ensures that they snap together smoothly for years to come.

Why Clean Your LEGO?

Over time, LEGO bricks collect dust, especially if displayed on shelves. If you build frequently, you might also notice grime from handling. And if kids are involved, well—food stains and mystery stickiness are almost inevitable! Regular cleaning prevents buildup and maintains the integrity of your collection.

The Best Ways to Clean LEGO

1. Hand-Washing LEGO Bricks

For loose bricks, hand-washing is the safest method:

  • Fill a bowl with warm (not hot) water and add a mild dish soap.

  • Place the bricks in the water and gently scrub them with a soft brush or cloth.

  • Rinse thoroughly with clean water and let them air dry on a towel.

  • Avoid using hot water, as it can warp the plastic.

2. Using the Dishwasher or Washing Machine (With Caution!)

If you have a large batch of bricks to clean, you can use a mesh laundry bag and run them through the dishwasher or washing machine:

  • Set the temperature to lukewarm (not hot) and avoid the heated drying cycle.

  • Use a gentle detergent and select a delicate cycle.

  • Always place them inside a mesh bag to prevent small pieces from getting lost.

3. Cleaning LEGO Minifigures and Printed Pieces

Minifigures and printed bricks require extra care:

  • Use a soft toothbrush or cotton swab with mild soap and water.

  • Avoid scrubbing too hard to prevent wearing off any prints.

  • Let them air dry completely before reassembling.

4. Dealing with Stickers and Electronics

  • For sets with stickers, avoid soaking them in water. Instead, use a damp cloth to gently wipe them down.

  • LEGO electronic components (like motors or light bricks) should never be submerged in water. Instead, wipe them with a slightly damp microfiber cloth.

Preventing Dirt Buildup

To minimize dust and grime:

  • Store LEGO sets in enclosed display cases or glass cabinets.

  • Use a soft brush or compressed air to regularly dust displayed models.

  • Wash hands before handling bricks to reduce oil and dirt transfer.

Conclusion

Taking the time to clean your LEGO collection ensures that your bricks remain vibrant and functional for years. Whether you're restoring an old set or just maintaining your favorite builds, a little care goes a long way. So, grab your cleaning supplies and give those bricks a fresh start!

BrickLifer: Build, Display, Repeat.

BrickLifer is an official LEGO® affiliate.

BrickLifer

Husband to an amazing woman, who keeps me alive. Father of 2 rambunctious and just trying to have fun in this crazy life.

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Bricks & Pieces: The Joy of LEGO Building and Puzzles