Beer is toxic to dogs. The alcohol in it can cause alcohol poisoning, which the Merck Veterinary Manual says can bring vomiting, stumbling, low blood sugar, a dangerously low body temperature, slowed breathing, seizures and, in bad cases, death. Hops, the flowers used to brew beer, bring a second danger: the ASPCA warns they can push a dog's body temperature up fast enough to threaten its life.
If your dog drank beer or got into hops, wort or brewing waste, call your vet, an emergency vet or a pet poison line now, even if your dog looks normal. Alcohol is absorbed quickly, and the ASPCA says to contact your vet or poison control when a pet has had any.
Key takeaways
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- Beer carries alcohol, and a small dog gets a much bigger dose from the same sip than a large one.
- Hops can cause a dangerous fever whether fresh, dried, pelleted or already used in a batch.
- No amount of beer has been shown to be safe for a dog.
- Alcohol signs usually start within 30 to 60 minutes; hops signs most often within 2 to 8 hours.
- Call a vet or poison line after any known drink of beer or any hops, before signs appear.
My dog drank beer: the next ten minutes
- Clear the area. Move the glass, the cans and any brewing gear, and look for chewed hop bags, pellets, mash or wort. Knowing whether hops were involved changes how urgent this is.
- Call. Phone your own vet, an emergency clinic, or a poison line listed at the top of this page. The ASPCA's advice for a dog with no signs yet is to call for guidance on the best course, and not to wait.
- Have the facts in front of you: your dog's weight, the beer's name and alcohol percentage from the label, roughly how much is missing, and when it happened.
- Go straight to an emergency clinic if your dog is stumbling, very drowsy, vomiting, trembling, breathing slowly, panting hard, feels hot to the touch, collapses or has a seizure. For signs of hops poisoning, the ASPCA calls immediate clinic care imperative.
- Stay with your dog for the rest of the day. Hops can take hours to show, so a calm first hour is no promise.
Hops, mash and homebrew waste
If you brew at home, the hops deserve as much worry as the beer. The ASPCA lists hops (*Humulus lupulus*) as toxic to dogs, and its article on dogs and beer says the danger holds for fresh, dried and used hops alike. A bucket of spent hops from brew day is as risky as a new bag of pellets, and it smells a lot more interesting to a dog.
No safe amount of hops has been worked out for dogs, according to the Merck Veterinary Manual, which is why any hops a dog eats is worth a call.
Some breeds seem to be at higher risk because they are prone to high-fever disorders. Pet Poison Helpline names Greyhounds, Labrador Retrievers, Saint Bernards, pointer breeds, Dobermans, Border Collies and American Cocker Spaniels. A 2016 review in Frontiers in Veterinary Science adds northern breeds and English Springer Spaniels.
Keep hops, wort, mash and the trash bag they end up in sealed and out of reach, especially while a batch is cooling.
How much beer is too much for a dog?
There is no safe amount to aim for. The AKC reports a lethal dose of 5.5 to 7.9 grams of pure alcohol per kilogram of body weight. That range marks where dogs have died, and dogs become sick at lower doses than that.
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| Drink | Alcohol by volume |
|---|---|
| DrinkTypical beer | Alcohol by volumeAbout 4% to 6% |
| DrinkLight beer | Alcohol by volumeAbout 2.5% to 3.5% |
| DrinkNonalcoholic or alcohol-free beer | Alcohol by volumeLittle or none; the label tells you |
Size matters more than anything else you can see. The same splash of lager is a far larger dose for a Chihuahua than for a Labrador, and the AKC says even a little beer may poison a small dog. When you call, the label's percentage and your dog's weight are the two numbers the vet will want.
Signs of alcohol and hops poisoning, and how fast they come
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| What your dog had | When signs usually start | What you may see |
|---|---|---|
| What your dog hadAlcohol in beer | When signs usually startWithin 30 to 60 minutes; blood levels peak at about 1.5 to 2 hours | What you may seeVomiting, drooling, diarrhea, stumbling, confusion, sleepiness, weakness, tremors, slow breathing, a cold body, collapse, seizures |
| What your dog hadHops | When signs usually startAs early as 30 minutes, most often 2 to 8 hours | What you may seePanting, fast breathing, restlessness or dullness, vomiting, diarrhea, a racing heart, very high body temperature, seizures |
Alcohol timing comes from Merck, which notes that many dogs recover within 12 to 24 hours with veterinary care. Hops timing comes from the ASPCA and from a study of 177 dogs that ate hops, drawn from ASPCA and Pet Poison Helpline cases. In that study, 74 percent of the dogs showed signs. Eight developed a dangerously high temperature and three of those eight died, while 95.2 percent of the dogs with a known outcome survived, most recovering in under a day. Merck describes hops signs that can take 8 to 24 hours to appear, which is one more reason a quiet evening is no all-clear.
"My dog drank beer before and was fine"
That can happen, and it is a real memory. It still does not make beer safe for your dog next time, or for the dog next door. A lick from the rim carries far less alcohol than a knocked-over glass, a big dog handles a dose that would floor a small one, and a light beer is weaker than a strong one. Hops add their own uncertainty: in the 177-dog study, roughly one dog in four never showed a sign, while a few died. Some hops signs also show up hours later, after everyone has gone to bed. The last time turned on that amount, that beer and that dog, so treat each new drink as its own event and make the call.
Nonalcoholic beer, dog beer and other drinks called beer
- Nonalcoholic or alcohol-free beer may hold little or no alcohol, but the amount varies by brand and added ingredients vary too. Read the label, and do not treat it as water or a dog treat.
- Dog beer sold for pets is usually alcohol-free and made from things like broth, vegetables, fruit, oats, barley or herbs. The AKC says to give it only in moderation and never in place of a balanced diet. Read its ingredients the way you would any treat.
- Root beer is usually alcohol-free but can contain sugar or caffeine.
- Ginger beer can be fermented or not, so check the label.
- Beer made with chocolate, coffee, fruit or sweeteners adds those dangers on top of the alcohol. Chocolate and coffee bring caffeine and theobromine, covered in can dogs eat chocolate?, and a beer brewed with grapes or raisins brings the kidney risk explained in can dogs eat grapes?.
Check what you learned
Quick check
Questions about dogs and beer
Is one lick of beer dangerous for a dog?
A single lick may cause no signs at all, but no amount has been shown to be safe, and a small dog has less room for error. Do not offer beer on purpose, and call if you are unsure how much your dog got or what it was.
Are hops poisonous to dogs?
Yes. Fresh, dried, pelleted and used hops can cause a severe fever, panting, vomiting, a racing heart, seizures and death. Any hops eaten is a reason to call right away.
Is nonalcoholic beer safe for dogs?
It may contain little or no alcohol, but the amount and the other ingredients vary. Check the label and keep it as a human drink.
Is dog beer the same as regular beer?
No. Dog beer is usually alcohol-free and made from broth, grains, vegetables, fruit or herbs. It is a separate product, so read its label and keep it to small amounts.
Can cats drink beer?
Alcohol is unsafe for cats too. Merck notes that hops poisoning has so far been reported only in dogs.
Sources
Checked September 24, 2026.
- Merck Veterinary Manual, Toxicoses From Alcohols in Animals (revised March 2025)
- Merck Veterinary Manual, Toxicoses in Animals From Human Dietary and Herbal Supplements
- ASPCA, Dogs + Beer: Getting to the Bottom of Hops Toxicity (July 12, 2018)
- ASPCA Animal Poison Control Center, Hops
- ASPCA Animal Poison Control Center, People Foods to Avoid Feeding Your Pets
- American Kennel Club, Can Dogs Drink Alcohol? Can Dogs Have Beer or Dog Beer?
- Pet Poison Helpline, Brewing Hops Poisonous To Pets
- Frontiers in Veterinary Science, Household Food Items Toxic to Dogs and Cats (2016)
- PubMed, A retrospective evaluation of hops ingestion in 177 dogs