How do you dispose of your (perishable) offerings to spirit guides?

Hi! I'm going to be making some offerings to my ancestors this week as thanks for their guidance. It's the first time that I'm going to be making person-specific offerings to each of them using something they loved on earth. Some of the offerings will be including food, so how do you guys dispose of the offerings after a couple of days out?

Normally, for things like crystals and herbs I would just put them in my garden but this time I'll have various items like cigars that I don't want polluting the ground. Should I jar them and bury them? Dispose of them normally and replace them with something more permanent? Any ideas would be so helpful!