How long does apple cider vinegar take to flush your system?

It takes approximately 30 days for apple cider vinegar to "flush your system." Since you are likely asking about the mistakenly held belief that vinegar will flush illegal substances from your system, you should know that these stories are myths. You may attempt to flush your system with water, alcohol, vinegar, or any of the various commercial products intended for this purpose, but you will be wasting time and money. The only thing that will "flush" illegal substance from your body is time. And, that time is approximately thirty days.