Reviewed by Natural Farm Pet Team · Updated March 2026
TL;DR: Do bully sticks go bad?
Yes, eventually. Unopened bully sticks last 2-3 years when stored in a cool, dry place below 80°F. Once your dog starts chewing one, seal it in an airtight bag, refrigerate, and use within a week. If a bully stick has mold, a sour smell, or unusual discoloration, throw it out immediately.
You bought a bulk pack of bully sticks, your dog chewed one halfway, and now you're wondering: can I save it for tomorrow? Or did it just become a bacteria magnet? Both are fair questions.
Bully sticks, when stored correctly, can last between two to three years. But various factors affect their shelf life, and they aren't immune to degradation. How you store them determines whether they stay safe for months or become a health risk in days.
The FDA recommends following safe handling practices for all pet treats, including washing hands after handling and storing properly to prevent bacterial contamination.
📖 Part of the Ultimate Bully Sticks Guide. See also: Are bully sticks safe for dogs? · When to take a bully stick away · Best bully sticks 2026
Bully Stick Shelf Life: Quick Reference
| Condition | How Long | Storage |
|---|---|---|
| Unopened (sealed bag) | 2-3 years | Cool, dry place below 80°F. Away from direct sunlight. |
| Opened bag (unchewed sticks) | 2-3 months | Reseal in original bag or airtight container. Keep dry. |
| Partially chewed | Up to 1 week | Ziplock bag or airtight container. Refrigerate immediately. |
| Left out after chewing (room temp) | Discard after 24 hours | Dog saliva introduces bacteria that multiply rapidly at room temperature. |
The American Veterinary Medical Association (AVMA) recommends storing dry pet food and treats in a cool, dry place at less than 80°F, and promptly sealing and refrigerating any unused or leftover treats. These guidelines apply directly to partially chewed bully sticks, which have been exposed to moisture and bacteria from your dog's mouth.
How to Tell If a Bully Stick Has Gone Bad
A fresh bully stick has little to no odor (especially Natural Farm's, which are naturally odor-free thanks to a slow, chemical-free drying process). Check for mold, foul odor, or significant discoloration. These are clear indicators that the bully sticks are no longer safe for consumption. Here's the full list:
⚠️ When in doubt, throw it out. A single bully stick costs a few dollars. A vet visit for a sick dog costs hundreds. Never risk it.
How to Store Bully Sticks Properly
The table above covers the basics: unopened bags stay in a cool, dry place away from direct sunlight, opened bags get resealed in ziplock bags or airtight containers. Follow these practices and your bully sticks remain safe and fresh for as long as possible. But the one area where most dog parents get it wrong is partially chewed sticks.
Saving a Partially Chewed Bully Stick
The moment your dog's saliva touches the stick, bacteria are introduced. If you're saving it for tomorrow, let it air-dry for 10-15 minutes (to remove surface moisture), then seal it in a ziplock bag and put it in the fridge. Use within a week. Do not leave a chewed bully stick sitting on the floor, the couch, or a countertop overnight.
If your dog chews regularly, Natural Farm's 6" Standard 31-Pack keeps you stocked so you can toss questionable sticks without guilt. Bully Bites are small enough that most dogs finish them in one session, eliminating the storage question entirely.
💡 Pro Tip: Keep a dedicated ziplock bag labeled "bully sticks" in your fridge door. After each session, drop the stick in, seal, done. Takes 5 seconds and prevents every storage-related issue.
Why Quality Affects Shelf Life
The USDA Food Safety and Inspection Service explains that the science behind preserving dried meat is straightforward: removing moisture prevents enzymes and bacteria from breaking down the product. The lower the moisture, the longer the shelf life. This is why the drying process matters more than most dog parents realize.
Cheap bully sticks are often fast-dried at high temperatures or smoke-flavored to mask odor from incomplete processing. These shortcuts leave residual moisture inside, creating a breeding ground for bacteria and mold. Quality bully sticks use slow, controlled drying to reach 8-10% moisture content, which is low enough for long-term stability without chemicals or preservatives.
Natural Farm's bully sticks are processed this way: naturally odor-free, USDA inspected, independently lab tested for contaminants, and made from 100% grass-fed beef. If your bully sticks smell strongly before your dog even chews them, that's a processing red flag, not a freshness indicator. Which bully sticks are the safest?
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Frequently Asked Questions
How long do bully sticks last unopened?
2-3 years when stored in a cool, dry place below 80°F and away from direct sunlight. Keep them in the original sealed packaging until you're ready to use them. Always check the best-by date on the bag.
Can I save a partially chewed bully stick?
Yes. Let it air-dry for 10-15 minutes after the session, then seal it in a ziplock bag and refrigerate. Use it within a week. Never leave a chewed bully stick out at room temperature overnight.
Why does my bully stick smell bad?
If it smells bad before your dog chews it, the issue is likely poor processing or old product. Quality bully sticks made with natural drying methods have little to no odor. Natural Farm's bully sticks are naturally odor-free with no smoke flavoring or chemicals used to mask smell.
If a stick develops a sour or ammonia-like smell after chewing, it's gone bad. Discard it.
Can expired bully sticks make my dog sick?
Potentially, yes. A spoiled bully stick can harbor bacteria like Salmonella or Listeria that cause vomiting, diarrhea, and more serious illness. The FDA warns that contaminated pet treats can cause illness in both pets and the people who handle them. When in doubt, throw it out. Can bully sticks cause diarrhea?
Should I refrigerate bully sticks?
Only partially chewed ones. Unopened or unchewed sticks should be stored at room temperature in a cool, dry place. Refrigerating unchewed sticks can actually introduce moisture and cause premature spoilage. Reserve the fridge for sticks your dog has already started chewing.
Can I freeze bully sticks?
Yes. Freezing extends shelf life indefinitely for unchewed sticks and works well for bulk purchases. Place them in a freezer-safe bag with as much air removed as possible. Thaw at room temperature before giving to your dog. Frozen bully sticks can also be given directly as a cold chew, which some dogs enjoy, especially in summer.
Do bully sticks have an expiration date?
Most quality bully sticks come with a best-by date stamped on the packaging, typically 2-3 years from the production date. After that date, the stick may not be unsafe, but it will start losing freshness, texture, and appeal to your dog.
Always check the packaging before buying, especially from bulk bins or resellers where packaging dates may be missing. If there's no date on the bag, that's a red flag about the brand's transparency. Which bully sticks are the safest?
What's the white coating on my bully stick?
A light white film on a new, unchewed bully stick is typically dried protein residue from the natural drying process. This is normal and safe. However, if the white spots are fuzzy, raised, or appear on a stick that was previously chewed and stored, that's mold. Discard it immediately.
Want the full picture?
Read our Ultimate Bully Sticks Guide for safety, sizing, comparisons, and more. Or explore the Natural Dog Chews: Complete Guide.
About Natural Farm
100% grass-fed. Naturally odor-free. Single ingredient. Manufactured in-house, USDA inspected, third-party tested. Free shipping on orders $79+.
