You’ve just hit the jackpot by finding hundreds of LEGO bricks at a garage sale for next to nothing.

LEGO / Bricks - Brick Loot 3 Pack Duster for LEGO / Bricks - Brick Loot

Depending on how many LEGO bricks you’re dealing with, you can fill up a sink or bathtub using hot water, but no hotter than 104 degrees. Hearst UK is the trading name of the National Magazine Company Ltd, 30 Panton Street, Leicester Square, London, SW1Y 4AJ.I would suggest trying this method, but if it is sun damage that is more than the outer surface I think you might not have any success.

3 Ways to Clean LEGOs - wikiHow

Please don't put your bricks in the washing machine or dishwasher or attempt to dry them in ovens, microwaves or with hair dryers. COMPRESSED-AIR DUSTERS:If you’re serious about cleaning your Lego creations of dust then you can opt for the slightly more expensive option which is a compressed air duster.You’re probably thinking with the thousands of tiny pieces that this chore will turn into an all-day task? Small pieces will be swept down the drain, large pieces will continue blocking the hole, water will continue rushing out. If the water is extremely murky, replace it with fresh soapy water and leave to soak for a full hour, or overnight if convenient. For difficult, stubborn dirt and er, stuff, in corners and hard to reach places, I use wooden tooth picks.