To make this recipe gluten free, replace the soy sauce with gluten-free tamari or a certified gluten-free soy sauce. You should also check the Worcestershire sauce label carefully, as some brands contain malt vinegar or other gluten-containing ingredients. Make sure all seasonings, especially garlic powder, onion powder, and paprika, are certified gluten free if needed for strict gluten avoidance. For anyone with celiac disease or a strong gluten sensitivity, prepare the jerky using clean utensils, bowls, racks, and storage containers to avoid cross-contact.