tmpWpfc Folder cleaning period

Please take a look at the following tutorial.
https://www.wpfastestcache.com/tutorial/clear-cache-process/

The link only says:
1. First of all, the cache folder which is /wp-content/cache/all/ is moved to the /wp-content/cache/tmpWpfc/
2. Later, the temporary folder which is /wp-content/cache/tmpWpfc/ is cleared in time
Can you please tell me how can I clear the tmpWpfc folder periodically? Like weekly?
Thanks

50 files are deleted during each request to the site.