Knowledgebase
Coffee #924813
Asked February 19, 2026, 4:59 PM EST
Itasca County Minnesota
Expert Response
Good Morning,
Thank you for contacting the U of M Extension Service.
You did not indicate what critter you are intending to deter. I would think unground coffee beans would be an expensive deterrent.
All of the information on the U of M Extension Yard and Garden website is based on valid research, not on a myth found on the internet or passed down through the ages.
Please click on the following link:https://extension.umn.edu/how/preventing-pests-your-yard-and-garden As you scroll down, the sections expand as you click on them.
Here is another link about rabbit deterrent: https://extension.umn.edu/news/keeping-animals-out-your-garden
Here is another link about protecting trees and shrubs: https://extension.umn.edu/planting-and-growing-guides/protecting-trees-and-shrubs-winter#repellents-972412
Good Luck!