From Stardew Valley Wiki

The Worm Bin is a craftable item that can be used to create Bait for fishing. The crafting recipe is unlocked at Fishing Level 8.

It creates 2-5 pieces of bait approximately once per day (see bug note below).

Worm bins outside the farm

It is possible to place chests and other crafted items outside the farm. Chests are useful for storing gifts close to the homes of Villagers who prefer them or to allow additional storage when Mining, Fishing, or Foraging. Worm Bins can be placed near fishing spots, Furnaces can be placed at the entrance to The Mines, or entire sections of the Valley may be utilized for Keg or Preserves Jar processing.

If a villager walks through the square where a crafted item was placed, the item will be destroyed. Below are player-created maps to indicate which tiles on the map are safe from villager-pathing.

Safe-pathing images of the interiors of homes and buildings can be found in the complete image gallery located at https://imgur.com/a/JlRXGlc

Bug

Only Worm Bins placed (or harvested) after 3pm on a given day will be ready at 6am the following day. Otherwise, the earlier the Worm Bin is placed/harvested, the later it will be ready (similar to Tappers and Bee Houses). Every one hour delay in start time causes the worm bin to be ready 40 minutes earlier (i.e., processing time is reduced by 100 minutes). Some specific values are provided in the table below. All worm bins placed during the same hour (e.g., 7:00 to 7:50 am) will be done at the same time; the 40 minute jump happens at the start of a new hour (e.g., 8:00 am).

Start Time Ready At Total Processing Time Day 1, 7:00 am Day 2, 12:00 noon 1900 mins Day 1, 10:00 am Day 2, 10:00 am 1600 mins Day 1, 4:00 pm Day 2, 6:00 am 1000 mins Day 1, 1:00 am Day 2, 6:00 am 100 mins



