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There are 56 calories in a 1oz serving of homemade beef jerky. Calorie breakdown: 18% fat, 2% carbs, 80% protein.
Unopened beef jerky can last for 1-2 years in the pantry, even beyond a date stamped on the package if properly sealed. The shelf life of beef jerky depends on the best before date and how the jerky is stored. Jerky is dried, removing most of the moisture where bacteria likes to grow.