Which ground coffees are kosher for passover?
Here is a list of some:~http://www.cdccoffee.com/kosher-coffee-office-refreshments.html~~http://www.rocklandkosher.com/p-12340-pure-roasted-ground-coffee-kosher-for-passover.aspx
Good article on that topic here: http://www.star-k.org/kashrus/kk-thirst-coffee.htmI see the Kosher and Parve symbols on coffee all the time but I'll be darned if I can remember which ones. But most major brands of coffee are indeed marked.
Folger's and Taster's Choice instant coffee are acceptable for Passover. You can also have Ground coffee and only the coffee that have an OU-P symbol or brands. You can check out http://www.cdccoffee.com/kosher-coffee-office-refreshments.html for more information.