So I always assumed Ghirardelli was off limits until I went to one of their stores in Pleasant Prairie, WI, where one of the sales ladies told me they went peanut free in 2013. And I've had their chocolate without a problem a few times since then, but curiosity got the best of me and I did a little research online. I found this website that said everything was made in a facility that uses peanuts and some chocolates, which I have had recently and checked the labels, we're made on the same equipment. This upset me, but I saw confident that the information was just outdated so I emailed Ghirardelli (they responded within a few hours too!) and here say my response:
"Thank you for contacting Ghirardelli Chocolate. Ghirardelli products do not contain peanuts as an ingredient. If peanuts are used on the same equipment, products bear "May contain peanuts." Ghirardelli currently manufactures products containing the following tree nuts: almonds, coconut and hazelnuts; all the Bars and Squares made in the facility share equipment with products containing these tree nuts.
The chocolate chips (60% Bittersweet, Semi-Sweet, Mini Semi-Sweet, Double Chocolate and Milk Chocolate) do not contain tree nuts or peanuts; moreover, the chocolate chips line does not make products containing tree nuts or peanuts. The Classic White Chips are produced in a facility and on equipment that makes products containing peanuts and tree nuts."
In my opinion as long as you're only PA Ghirardelli is completely safe--just stay away from some of their baking products.