When Denise Castronovo launched Castronovo Chocolate in 2013 with her husband Jim, she brought with her a PhD in ecology and a passion for rainforest conservation. So to her it was only natural that her company start in an actual forest - with the cocoa beans.

American consumers may equally love chocolate, but not all chocolate is created equal.

Now in its second year, more than 4,000 attended the show. It is a successor - but under different ownership - to the Salon du Chocolat.