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Live bait vending machine, Brighton Recreation Area, Michigan
A worm machine in the port of Roquetas de Mar, Spain
Display of products in the machine

A Bait machine, also called a worm machine, is a vending machine that dispenses live bait, such as worms and crickets, for fishing.[1]

Red or manure worms are kept in stock within a growing medium, and oftentimes the machines have a small reservoir in them to simulate rain and to feed the worms a nutrient solution. Electrical pulses are used to encourage the worms to come closer to the surface to obtain the nutrient solution. In connection with heating and constant high humidity, worms attain higher reproduction rates and faster growth.[citation needed]