Dehydrating time and temperature are the two variables that control whether your jerky comes out perfectly chewy, disappointingly soft, or inadvertently brittle. Getting this right requires understanding what you are actually doing to the meat, not just following a single time recommendation that may not match your dehydrator, your meat thickness, or your humidity level.
The USDA-safe temperature for beef jerky
The USDA recommends that beef jerky reach an internal temperature of 160°F (71°C) to ensure that any pathogens — particularly E. coli O157:H7 and Salmonella — are destroyed. A standard food dehydrator running at 130–140°F may not achieve this internal temperature reliably, particularly in thicker cuts.
There are two approaches to ensure safety:
Pre-heat the meat before dehydrating. Heat the marinated meat strips in a 275°F oven for 10 minutes before transferring to the dehydrator. This initial heat kills surface pathogens and brings the internal temperature to a safe level before the slow dehydration begins.
Post-heat in the oven after dehydrating. After the dehydrating cycle is complete, transfer the jerky to a 275°F oven for 10 minutes. This is the method I use most often because it is simple to add at the end of any dehydrating run.
Time and temperature guide
These are general ranges for beef jerky sliced to ¼ inch (6mm) thickness at 160°F dehydrator temperature. Thicker cuts require longer times; thinner cuts dry faster.
- 130°F: 10–12 hours (requires pre- or post-oven treatment for safety)
- 145°F: 8–10 hours
- 155°F: 6–8 hours
- 160°F (USDA recommended): 4–6 hours
These ranges assume a good dehydrator with consistent temperature and airflow. Budget dehydrators with uneven heating may require 2–3 additional hours and benefit from rotating trays halfway through.
How to test for doneness
The bend test is the most reliable field method. Remove a piece from the dehydrator, let it cool for 5 minutes (jerky appears more moist when warm), then bend it. Properly dried jerky should bend without breaking cleanly but should show white fibers and possibly crack slightly at the bend point. Jerky that snaps completely is over-dried. Jerky that bends without any cracking or visible white fibers is under-dried.
The jerky should feel firm and dry to the touch — not tacky or leathery. Tacky surface means moisture remains and will encourage mold during storage.
Variables that extend drying time
Marinade sugar content. High-sugar marinades (teriyaki, honey-based) create a sticky surface that slows moisture evaporation. Add 1–2 hours to your baseline for heavily sweetened jerky.
Fat content in the meat. Fat does not dehydrate cleanly and creates soft spots in finished jerky. Lean cuts (eye of round, top round, flank steak) dry more quickly and evenly than fattier cuts.
Ambient humidity. High-humidity environments slow dehydration measurably. If your kitchen is humid, increase temperature slightly or extend time.
See our dehydrator reviews for specific gear recommendations, or our beef jerky rankings for the best commercial options.
Quick Answers
What temperature should you dehydrate beef jerky at?
160°F (71°C) for beef, and 165°F (74°C) for poultry such as turkey or chicken. This is the USDA-recommended internal temperature for destroying pathogens including E. coli O157:H7 and Salmonella. If your dehydrator tops out below 160°F, pre-heat the marinated strips in a 275°F oven for 10 minutes before transferring them to the dehydrator.
How long does beef jerky take in a dehydrator?
4–6 hours at 160°F for strips sliced 1/8 to 1/4 inch thick. Thinner strips finish closer to 4 hours; thicker cuts, high-sugar marinades, and humid kitchens can push it to 8 hours or more. Start checking at the 3-hour mark rather than trusting a fixed timer.
How long to dehydrate beef jerky at 160 degrees?
At exactly 160°F, plan on 4–6 hours for standard 1/8–3/16 inch strips. Because 160°F is the safe minimum rather than a high-heat setting, the drying is gradual — this is normal and produces better texture than rushing at a higher temperature.
Can you dehydrate jerky at 145°F or 155°F?
Not as your only heat step. Temperatures below 160°F may dry the meat successfully but are not reliably sufficient to destroy pathogens in whole-muscle beef. If your machine only reaches 145–155°F, use the oven pre-heat method above so the meat reaches a safe temperature before the long low-temperature drying phase.
How do you know when jerky is done?
Bend a cooled strip. Finished jerky bends and cracks slightly at the bend without snapping in half. If it snaps cleanly it is over-dried; if it bends with no cracking, or feels tacky, moisture remains and it will mould in storage. Always cool a test piece first — warm jerky feels softer than it actually is.
Is it better to dehydrate jerky longer at a lower temperature?
No. Extended drying below the safe threshold increases food-safety risk without improving texture. Hold 160°F and control the outcome with slice thickness and total time instead.
Do you need to flip jerky in a dehydrator?
Not usually. Dehydrators circulate air around the strips, so flipping is unnecessary. Rotating trays top-to-bottom partway through does help if your model dries unevenly, which is common on cheaper stackable units.
