Starbucks is offering 20,000 coupons for free pints of their new ice creams via Facebook from now through July 19.

Not surprisingly with a name like Starbuck, all the flavors contain coffee. There’s plain Coffee, Mocha Frappuccino (swirled coffee and chocolate ice creams),  Java Chip Frappuccino (coffee ice cream with chocolate chunks) and my — and all my friends who tested this line with me — hands-down favorite, Caramel Macchiato (coffee and vanilla ice creams streaked with caramel).

To get free coupon, go to Facebook at the very top of the hour to request that a coupon be sent to a friend.

You need to be really quick as only 800 pints will be given out each hour. Seriously quick, as when I tried at 5 minutes after the hour I got  the message:  “Sorry! All the free pints … are gone…for now. Another batch will be up for grabs at the top of the next hour….”