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Tips on cleaning used Lego


DominickSoldano

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A friend/coworker is cleaning out his garage and he gave me a huge box of Lego today. I started going through it and it's an incredible quantity of stuff; Lego, Technic, Bionicle - probably 50,000 pieces. Mostly Lego but also some MegaBlocks and other stuff (which I'm separating out). Some of the Lego stuff is pretty old and it's all pretty dirty. Can anyone give me some idea of how to clean it? Thanks in advance for any suggestions/instructions.

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Let them soak in lukewarm water and detergent for an hour or so then scrub them with a medium bristle scrub brush that should take off most of the funk. You can use a toothbrush if you see any remaining gunk. Then you have to lay them out and let them dry, if they don't dry completely they could accumulate some mold, so make sure they dry good.

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put it all in a mesh laundry bag, tie the top tight, and run it in the washer and then dryer

This is what I do, the only thing I add is I wash it with what we call 'dirty towels' outside of the mesh bag. These are used bath towels that we now keep to use for cleaning. I think it helps clean the mesh bag of Legos while helping to protect the Legos from damage as the Legos are generally rubbing against a softer surface than the stainless steel tub.

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Easier solution....put it all in a mesh laundry bag, tie the top tight, and run it in the washer and then dryer. Piece of cake.

I thought about this before, but wasn't so sure that it was safe or okay. Well, if it works for you, good enough for me. Don't know about running through the dryer though. Wouldn't that just bang the crap out of the bricks? Might need to do what Talon said and use some bath towels to give them a 'soft' barrier.
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I thought about this before, but wasn't so sure that it was safe or okay. Well, if it works for you, good enough for me. Don't know about running through the dryer though. Wouldn't that just bang the crap out of the bricks? Might need to do what Talon said and use some bath towels to give them a 'soft' barrier.Yes - The large towel method will also dry them quicker, and polish them up a bit.
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I read somewhere that someone just washes their LEGO pieces in the wash machine with no bag.....just tosses them in, wonder how that worked out. When I put mine in the wash machine with the mesh bag method they seemed to loose a little bit of color, but then again I used hot water and that tide so that probably was the reason.

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I always use the soak/mild detergent method in the sink, but you can do the washing machine method as others have said. I think it has been said to use the "warm" water stage instead of hot to make sure the Lego doesn't lose any integrity, but I believe they are safe up to 140 degrees or something like that. The using of the towels in the washing machine is a good idea too, for the reasons stated above.

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  • 1 month later...

My wife and I have a lot of older sets and have also recently purchased some bulk Lego bricks from eBay. As anyone with older sets or bricks knows the white and gray pieces become yellowed over time. My wife did some research and found the following way or getting them back to their original color. We have tried this on many pieces and so far it works great (see the before and after photo). I thought I would share in case anyone is interested. Here is what you do...

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I have done this and it definitely works. Didn't know that the solution was good for that long though. I have put printed pieces in the mixture and not had adverse effects to the colors. Thanks for posting this, many people have old pieces that simply need to be cleaned up and the Oxi-Clean/Peroxide breakthrough has saved many a Lego brick life.

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I used high-strength peroxide on some 1980s Town sets two years ago, and I'm sorry to say that while the white bricks looked fine for about 6 months, the yellowing has since returned. I did leave the parts in the summer sun for 2 days; either that wasn't enough time or this fix is a temporary one. I wouldn't feel comfortable selling whitened bricks on the secondary market, since Cinderella's carriage turns back into a pumpkin before too long.

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http://growgreenmi.com/hydrogen-peroxide-4l-case-of-4 I have a case of this in my closet for when I need to whiten bricks (It was $85 when I bought it...) I also add oxyclean as an oxidizer. ******.B., make sure you dilute the peroxide enough. If you don't, the chemical reaction between the bricks, acid, and oxyclean will cause the mixture to heat up. My tub of bricks I was bleaching started to steam. I'd estimate that it got up to 160F before I noticed and dumped a bunch of baking soda in it to kill the acid. Be careful. 29% H2O2 will cause chemical burns on your hands. Those little cuts all over your hands won't feel too good after being soaked in 29%. I was originally going to write an article for Brickpicker extolling the virtues of this cleaning method and how to do it. But, I noticed that the bricks I cleaned in this manner were hard to stack with untreated bricks. It was as if they had gotten a tiny bit bigger. Also, the colored bricks I tried cleaning this way started to get whiter, rather than cleaner.

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Does this work with other colours like blues, clears and yellows?

I've some 50yo bricks that could do with brightening up

I have seen that it works on blue and old grey as well as white. Those were the main trouble colors of the old bricks, though, I've only personally tried it on white.

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  • 4 months later...

Couldn't find a thread on this, so a question.

 

Those who buy a lot on Craigslist or lots on eBay, do you have a preferred method for cleaning dusty Lego? I can imagine a tub with soap and water is the easiest, although drying them seems like a pain. Anyone have a better method?

 

Also, if the color on pieces are faded or sun damaged, guessing there is no going back on that right?

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