There is a bug in minecraft snapshot 19w02a that when you put food on a campfire then pour water on it there will be fake items on the ground that you can't do anything with.
Environment
Environment:
Mac Pro (Early 2009)
2 x 2.26 GHz Quad-Core Intel Xeon
20 GB 1066 MHz DDR3
ATI Radeon HD 4870 512 MB
macOS High Sierra
Duplicate of MC-141898. Please keep in mind to search before creating a new ticket.