Here's their answer. I probably won't let dd try it.
Thank you for your inquiry.
We produce beverages in multiple facilities around the world, some of which produce other food products, so we cannot guarantee that the facilities do not produce other nut-based foods. However, coconut water production is separate, in those facilities that do produce other food products. And in some facilities, we produce only coconut water beverages.
Regardless, if you want to try our product and are concerned about allergic reaction, you should do so some with consultation of your personal physician, who best understands your current health and medical history.