It’s latest release added Publicize which provides a set of means to connect your WordPress site to popular social networks and automatically share new posts with friends and followers via Facebook, Twitter, Tumblr, Yahoo!, and LinkedIn. There is just one problem, Jetpack screws up your Open Graph data. Thats what I recently noticed.
Even though they tried to fix this in v2.0.3, this problem still exists.
Example: OpenGraph Tags in header:
How to disable Jetpack open graph tags
To remove Jetpack’s open graph tags, open up your theme’s functions.php file and paste the following code
// remove jetpack open graph tags
That’s all.. And you should be all set.