Your damaged currency can still be valuable
If you have money that’s been badly damaged by fire, water or chemicals, explosives, etc., don’t be too quick to throw it out. The Bureau of Engraving and Printing might redeem it at full value.
To qualify for the redemption, you must have more than half of the original note, including any relevant security feature. Or, you can qualify if you have less than half, but can prove how the note was mutilated and that the missing portions were destroyed.