Are all ACVs natural? No, all ACVs are not natural. While some are synthetically prepared from chemicals within 2-3 days, natural ACV (like BEON’s) is prepared from fruits through a natural process of fermentation lasting for 7-8 months. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.