Everyone is familiar with the two-tone eraser, with its pink side and its blue side.

For years, a popular belief circulated: the blue side was used to erase the pen.

Who hasn’t labored over their notebook, hoping to erase an ink mistake, only to end up with a sheet full of holes?

The Myth of the Pen: Why Did This Belief Take Hold?

For generations, the idea that  the blue part erases the pen  has been passed down, probably because of  its harder, more abrasive texture . Many have tried to test this theory… with  more holes in their notebooks than success  !

In reality,  this side of the eraser is not designed for pen inks , which  penetrate the paper  instead of remaining on the surface like pencil.  Rubbing harder will only damage the paper without actually erasing the ink .

What is the real use of the blue part?

Contrary to popular belief,  the blue side is indeed intended for erasing pencil , but on  specific surfaces .  It is harder and more abrasive , which makes it ideal for:

• Thick, rough papers , such as  Canson paper  used for drawing.
• Cardboard and other rigid surfaces , where  the pencil adheres better .
• Erase marks on the walls , especially  scribbles made by children .

The  pink side is  softer  and suitable for  classic papers , such as  notebooks and binder sheets .

What the experts say

The  manufacturers themselves confirm  that  the blue part was never designed for ink . Its abrasiveness simply allows  for deeper erasing  on  hard surfaces .

Some blue erasers can fade light inks on thick paper, but they do not erase them completely.

Conclusion: no more preconceived ideas!

If you were one of those who thought  the blue eraser erased the pen , you’re not alone! But now that  the truth is restored , there’s no need  to press down like a maniac  on your  paper .  Use the right side in the right place , and your  pencil mistakes will disappear without a hitch .

And you, have you ever tested this myth?