7 () posted 2 years ago by pkvi 2 years ago by pkvi +9 / -2 17 comments share 17 comments share save hide report block hide replies
Use sterile gloves
Tap water is obvious. It is chlorinated and should be sterile.
The other would be just any edible item, esp fruit which you can cut open and use the juice : citrus fruit etc?
Third: insects (if you have access to them this time of the year)