I sent the company an email bewildered what I was told over the phone.... this is there reply
Thank you for your recent inquiry with Walton’s. I understand that somebody told you that the fresh collagen casings can be hung in the smoker and the smoke won’t penetrate through the casings? If this is what you were told, this statement is false. I apologize about the confusion this has caused for you. The Fresh Collagen Casing are the least durable for hanging in the smoker and the smoke WILL penetrate all the way through the casings. If you are wanting to hang the casing in the smoker I would recommend the Clear Collagen Casings. Please let me know if you have any questions regarding this information.
Thank you,