The chances of getting botulism from homemade wine are extremely unlikely at best, and most likely impossible because of the acidic nature of grapes and the alcohol content. However, just to be on the safe side, I would thoroughly wash the grapes and the container(s) used to brew the wine as...
I usually try not to cook the pumpkin until i am ready to make pumpkin pie. I boil the pumpkin and use it a short time later. If anything is left over, it is immediately put in the freezer. The smaller varieties of pumpkins make better pumpkin pie compared to the larger "Jack-O-Lantern"...