Yes. Performing an erase or a "full format" shortens the life of the device. The erase function is also very slow. This matters more than most people realize because flash memory wear is cumulative and irreversible over time.

Here are some additional questions based on the answer above which we will address in today's post:

Is "erase" and "format" the same thing?

Erasing flash memory (a.k.a. setting all bits to 0, also called a "full format" by Windows) does more damage. Flash memory has a limited number of times that it can be written, and the more you write to it, the more it degrades. With an erase function, you're writing to the entire device.

With a format, all that's happening is changing a few bits at the front of the device to indicate the rest of the memory space on the flash drive is available to be overwritten. This preserves the life of the flash memory because the old data isn't being overwritten immediately—just flagged for reuse later. We've covered the broader implications of flash wear and longevity in more detail in our article on the life cycle of a USB flash drive.