Here’s their non-response:
On Wed, Nov 22, 2017 at 7:00 PM Horizon Organic <HorizonOrganic@casupport.com> wrote:
Hi Amy,
Thanks for getting in touch—and for your commitment to knowing what’s in your food!
At this time we don’t have dedicated lines for our products. Our products are manufactured at many different facilities throughout the United States, because of this we cannot guarantee certain ingredients, such as tree nuts, are not being stored at each facility.
However, we take allergenic food concerns seriously and have instituted allergen control programs at each facility manufacturing our products. Our allergen control programs consist of several components, designed to comprehensively address allergenic food concerns at multiple points of production.
We know you're trying to make the best decision for you and your family, and we don’t take that lightly. Because we know this is such an important consideration for you, we are not comfortable providing information that could change without notice as we shift production among our facilities.
We really appreciate hearing from you —your questions help us understand what matters most to the families who count on Horizon.
If you have any additional questions please feel free to reply to this email.
From our family to yours,
John & the Horizon Team
Ref: Y2297088