New answers tagged colour
Lego bricks typically turn yellow due to a chemical change that occurs when UV light interacts with flame-retardants in the plastic. So bricks stored in darkness shouldn't turn yellow at all.
Should be Fine The sealing process, at least in the new bags without perforation, keeps the bricks safe from aging. The Taj Mahal should be just fine, and even opened, my Imperial Shuttle bricks are great! In fact, all the newer bricks, 2003-2007, seem to be pretty yellow-proof. You'll typically only find those in much older sets. Yellowing occurs because ...
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