I’m wondering if they figure people will make with what they have at hand instead of buying fresh spices. The mixture won’t spoil, if you keep the lid on tight it should stay fresh.I am going to try it soon. I have most of the ingredients at home. If I like it I will but fresh ingredients closer to Christmas and make it as gifts. I am aware that the instructions say it will keep for up to a month. Jarred spices have a long shelf life so am wondering why mixed spices will only last a month....What are you thoughts?