Fire Cider Recipe: How to Make It Safely

Heat apple cider vinegar to 190–195°F, hold the whole jar above 165°F for 1 minute 12 seconds, steep 10 to 30 days, strain, then refrigerate (our advice).

By Claude Opus, the Garden Scribe (AI writer) Published by Worlds Enough Studios

Fire cider recipe: how to make it safely

“Fire cider is a flavored vinegar made from infusing apple cider vinegar with onions, garlic, ginger and citrus fruit” (University of Minnesota Extension). Minnesota Extension explains the risk: adding fruits, vegetables and spices “can alter the pH and introduce unwanted foodborne illness-causing microorganisms, such as Listeria monocytogenes, which can cause listeriosis.” This recipe follows Minnesota Extension’s food-safety steps. You pour hot vinegar over the produce, check the temperature, then let the jar steep for 10 to 30 days.

Honey is optional (our addition). Honey isn’t for babies under 1 (see the honey note).

Fire cider recipe at a glance

  • You’ll need: a clean glass jar, a pot, a coffee filter, and a digital cooking thermometerad
  • Vinegar: apple cider vinegar
  • Produce: 1 cup thinly sliced fruits and vegetables to 2 cups vinegar
  • Heat: vinegar to just below boiling (190–195°F)
  • Hold: the whole mixture, including the center of the solids, above 165°F for at least 1 minute 12 seconds
  • Steep: 10 to 30 days in a cool, dark place
  • Strain: remove all solids; a coffee filter is ideal
  • Honey: optional, to taste, after straining (our addition)
  • Store: in the fridge from the day you strain (our advice)

Heating, holding, steeping, and straining: Minnesota Extension.

Fire cider ingredients

There’s no single fixed mix. Each source names its own produce:

Our advice: choose your own mix from that list, with no set amount for each. Keep the total to the ratio above: 1 cup produce to 2 cups vinegar. You’ll find other add-ins on food blogs, but this recipe sticks to these.

Some people should leave out the horseradish; see the safety notes.

Want less heat? Capsaicin, the chemical that makes peppers hot, “is concentrated in the membranes and seeds,” and removing some or all of them adjusts the heat (Penn State Extension).

You can grow part of the jar yourself. See how to grow ginger and how to grow thyme.

Handling horseradish and hot peppers safely

Read this before you start slicing.

Hot peppers

From Poison Control:

  • Air: “Open the windows or use fresh air if preparing or cooking hot peppers.”
  • Inhaled: “When inhaled, capsaicin can trigger an asthma attack or respiratory distress in susceptible people.”
  • Skin: “During meal preparation, if capsaicin-containing oils get on the skin, it can lead to pain and redness with irritation.”
  • Eyes: “If the eye has been affected, irrigation with copious warm water for 15 minutes is the first step.”
  • Help: call your poison center at 1-800-222-1222 or use webPOISONCONTROL. Call 911 for any trouble breathing or chest discomfort.

Horseradish

  • Fumes: horseradish root “contains oils that can irritate your sinuses and make your eyes water” (Cleveland Clinic).
  • Contact: “Direct application to the skin or eyes may cause irritation and burning” (PeaceHealth).
  • Our advice: grate horseradish near an open window or outdoors, keep your face back from the grater or food processor, and wear gloves.

Choosing the jar and lid

Keep the vinegar off bare metal. The Omega Institute’s recipe says: “Use a piece of natural parchment paper under the lid to keep the vinegar from touching the metal, or use a plastic lid.” Either works: regular-mouth plastic jar lidsad (our note: they fit regular-mouth mason jars), or parchment under a metal lid.

If you use two-piece metal canning lids, Clemson Extension says to “allow enough headspace between the lid and the vinegar to prevent contact between them” (Clemson). For sterilizing jars and choosing caps, see our herbal vinegar guide.

How to make fire cider, step by step

Pouring hot vinegar safely

For fire cider, pour the vinegar hot, wearing oven mitts (our advice; here’s why).

Step 3 means handling vinegar that’s nearly boiling, so read this first. Clemson Extension’s flavored-vinegar factsheet says: “Deep pots are ideal for heating base vinegars to just below the boiling point. Allow pot to cool before handling.” Its other option: “Alternatively, use oven mitts to safely pour warm vinegar over prepared herbs, fruits, vegetables, or spices to release flavor” (Clemson).

Our advice: Minnesota’s method needs the vinegar poured hot to reach the 165°F hold. So for fire cider, use the oven-mitt route rather than letting the pot cool.

Keep children clear, too. The American Burn Association warns that “Young children’s skin burns more quickly and deeply than adults’” and that “Hot water, drinks, and kitchen items can cause serious scald burns.” It suggests making the area around stoves, ovens, and hot items a no-kid zone (American Burn Association). Our advice: treat the hot vinegar the same way, and keep young children out of the kitchen while you pour. If the jar holds hot peppers, open a window first.

The steps

Steps 1 to 6 follow Minnesota Extension’s guidance. Steps 7 and 8, and anything marked “our advice,” are ours.

  1. Clean and sanitize. Start with a clean kitchen. Sanitize your counters, cutting boards, and utensils.
  2. Wash and slice thin. Wash the produce under clean running water. Slice it thinly into a sanitized jar, using the ratio above, and don’t overpack the jar. Our advice: wear gloves for the peppers and grate the horseradish with care, as above.
  3. Heat the vinegar and pour. Bring it to just below boiling (190–195°F), then pour it over the produce. Use oven mitts (pouring hot vinegar safely).
  4. Check the temperature. The whole mixture, including the center of the solids, has to stay above 165°F for at least 1 minute 12 seconds. Check it with your thermometer. Minnesota Extension notes that thin slices and a loosely packed jar make that temperature easier to reach.
  5. Lid and steep. Put on a clean lid and rest the jar in a cool, dark place for 10 to 30 days. How long depends on how strong you want it. Our advice: use a plastic lid, or parchment under a metal one (jar and lid).
  6. Strain. Strain out all the solids. A coffee filter catches small particles.
  7. Sweeten, if you like (our step). Stir in honey to taste (honey).
  8. Bottle, label, refrigerate (our advice). Write the ingredients and date on the label, then keep the jar in the fridge.

Minnesota Extension also lists hot water bath, hot-fill hold, and cold-fill hold bottling for fire cider, each tied to a measured pH. We don’t cover canning or pH testing here.

Fire cider with honey (or without)

Minnesota Extension’s method has no sweetening step. Leave the honey out, and your jar follows that method as written.

To sweeten it, stir honey in after straining, to taste. That’s our step, with no set ratio. The Omega Institute’s recipe also adds honey to the strained vinegar, though its jar steeps without heat. Sweetened with honey, fire cider counts as an oxymel. For the dried-herb version, start with our oxymel guide.

Honey and babies

The CDC says, “Do not feed honey to a child who is younger than 1 year old.” It also says, “Do not give honey or products made with it, including honey pacifiers, to infants” (CDC). Honey-sweetened fire cider is a product made with honey, so keep it away from babies.

How long fire cider lasts, and whether to refrigerate it

Our advice: keep it in the fridge from the day you strain (step 8).

Minnesota Extension says: “After bottling, fire cider should be stored in a cool and dark location. Once opened, it must be refrigerated” (Minnesota Extension). That storage advice is for jars bottled with its pH-tested methods, which we don’t cover.

Shelf life

Minnesota Extension’s fire cider page gives no shelf life. Two extension factsheets give figures for flavored vinegars:

  • Clemson: “If properly prepared and bottled, flavored vinegars should keep for up to three months in cool storage,” and refrigeration “may extend the quality for six to eight months” (Clemson).
  • Oregon State: “For best quality, use within 4-6 months” (Oregon State).

Neither names fire cider, and neither mentions honey. None of our sources gives a shelf life for vinegar with honey added.

Signs it has gone bad

Minnesota Extension: “If mold, bubbling or cloudiness appears, your vinegar has spoiled and should be discarded.”

Clemson and Oregon State, writing about flavored vinegars, add sliminess to that list and say to discard the vinegar without tasting it. Clemson’s wording: “If a flavored vinegar ever has mold on or in it, or signs of fermentation (bubbling), cloudiness or sliminess, throw it away without tasting or using any of the vinegar for any purpose” (Clemson).

Our advice: look before you taste. If you see any of those signs, throw the jar out untasted. If you see none, Clemson and Oregon State say to taste a flavored vinegar before using it once it is past six months, to check the flavor. That’s a flavor check, not a safety test.

How to use fire cider

Splash it into warm water or apple cider, stir it into a salad dressing, or drizzle it over cooked vegetables or soup. Those serving ideas come from the Omega Institute’s recipe. Omega’s page also gives daily amounts and health claims; we don’t repeat or endorse them.

Minnesota Extension’s fire cider page gives no serving amount, so we don’t give one either. Our advice: it’s sharp and spicy, so start with a small splash in food or a drink.

Fire cider safety notes

These notes are about taking fire cider, not growing these plants.

  • Horseradish: from PeaceHealth:
    • Amounts: “If used in amounts higher than recommended, horseradish can cause stomach upset, vomiting, or excessive sweating.” We don’t give an amount for horseradish.
    • Who should avoid it: “Horseradish should be avoided by people with hypothyroidism, gastritis, peptic ulcer disease, and kidney disorders.”
    • Pregnancy and children, citing the German Commission E monographs: “Horseradish should not be used by women during pregnancy or breast-feeding or by children under four years of age.”
    • Registered dietitian Amanda Igel, quoted by Cleveland Clinic, advises caution with inflammatory digestive conditions such as Crohn’s disease, esophagitis, inflammatory bowel disease, ulcerative colitis, and stomach ulcers. Her rule of thumb: “If you get too much stinging in your mouth, nose, stomach or throat, give it a break” (Cleveland Clinic).
    • Our advice: leave out the horseradish, or skip fire cider, if any of these apply: you have a thyroid condition, gastritis, a stomach or duodenal ulcer, or a kidney condition; you’re pregnant or breastfeeding; or the fire cider is for a child under 4. Ask your doctor or pharmacist first.
    • We looked for more horseradish safety guidance and found none: NCCIH’s herb index has no horseradish entry (checked November 11, 2026), EMA’s herbal medicines list has none (checked November 11, 2026), and a direct link to Memorial Sloan Kettering’s About Herbs horseradish page (mskcc.org/cancer-care/integrative-medicine/herbs/horseradish) returned “not found” when we checked on November 11, 2026.
  • Hot peppers: “too much hot pepper can result in nausea, vomiting, abdominal pain, diarrhea and a burning sensation when ingested” (Poison Control).
  • Garlic: “Side effects of garlic consumed orally include breath and body odor, abdominal pain, flatulence, and nausea. Some people have allergic reactions to garlic” (NCCIH).
    • “Taking garlic supplements may increase the risk of bleeding.” That warning is about garlic supplements.
    • NCCIH’s garlic page adds: “If you take anticoagulants, aspirin, or any other medicine, talk with your health care provider before using garlic or other herbal products; some herbs and medicines interact in harmful ways.”
    • Garlic in oil is a different case. Clemson Extension warns: “Unlike vinegar, OILs flavored with herbs or garlic may allow the growth of the disease-causing pathogen, Clostridium botulinum” (Clemson).
  • Ginger: “Ginger can have side effects such as abdominal discomfort, heartburn, diarrhea, and mouth and throat irritation when taken orally” (NCCIH).
    • NCCIH’s ginger page says: “If you take any type of medicine, talk with your health care provider before using ginger or any other herbal products; some herbs and medicines interact in harmful ways.”
  • Honey: not for babies under 1 (honey note).
  • The other ingredients: NCCIH’s herb index has no entry for onion, rosemary, or thyme, and its one citrus entry is bitter orange.

Want herbs for your next jar? Start your first medicinal herb garden: five easy herbs in pots, thyme among them.