do counterfeit pens work
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How does a counterfeit pen work?
Counterfeit detector pens contain an iodine solution that reacts to starch molecules, which are present in most kinds of wood. The reaction leaves a dark stain which exposes fake currency notes. Can a counterfeit pen be wrong? As it turns out, counterfeit detection pens aren’t always accurate and aren鈥檛 a particularly reliable tool.
Are counterfeit pens reliable?
No According to the Federal Reserve Counterfeit pens are commonly used by retailers, casinos, and banks to detect fake currency. These pens are probably more reliable for recently produced currency compared to notes from decades past.
How does a counterfeit detector pen detect a bill?
A counterfeit detector pen contains a solution of iodine. This iodine reacts with the starch molecules that are present in a normal, wood-based paper, to leave a dark brown mark. This black mark indicates that the bill is fake. Neither linen nor cotton fiber will react with iodine, so the mark will not turn black.
How to pass a pen test for counterfeit money?
When someone uses the pen, the fakers solution can also cause counterfeit bills to pass a pen test. A second approach used to fake the pen is to use bleached lower denomination banknotes.