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Fermented garlic in honey, sometimes called honey garlic or garlic honey, is one of the simplest and most rewarding fermentation projects you can make. Peeled garlic cloves submerged in raw honey undergo a slow lacto-fermentation over weeks to months, during which the garlic mellows from sharp and pungent to sweet, complex, and deeply savory. The honey takes on garlic character and becomes more liquid as moisture draws out from the garlic. I keep a jar going permanently in my fermentation area and use both the cloves and the honey constantly in cooking.
Why it works: the science
Raw honey naturally contains wild yeast and Lactobacillus bacteria at low concentrations, too low to ferment the dense undiluted honey, but sufficient to ferment when the honey’s water activity is increased. Garlic introduces additional wild microorganisms and releases moisture (garlic is 60–65% water by weight) as osmosis draws water from the cloves into the honey. This dilution lowers the honey’s water activity to the fermentation-active range, allowing the wild yeast and lacto bacteria to begin fermenting the sugars. The garlic cloves are simultaneously preserved by the honey’s antimicrobial properties and the lactic acid produced by fermentation.
Recipe and process
- Peel enough garlic cloves to fill a clean wide-mouth jar (4 oz to 1 quart depending on desired batch size). Use fresh, firm cloves, no shriveled or damaged ones.
- Fill the jar with raw (unpasteurized) honey, ensuring all cloves are fully submerged. The honey should cover cloves by at least 1/2 inch. The cloves will initially float, they’ll sink as they absorb honey and release water.
- Cover loosely with a cloth or very loosely placed lid (not sealed, fermentation produces CO₂ that needs to vent). Keep at room temperature.
- Turn the jar upside down once daily for the first week to recoat any floating cloves and mix the honey. The honey becomes noticeably thinner and more liquid within the first week as garlic moisture dilutes it.
- Bubbles appear within 3–7 days, this is active fermentation. Burp the jar once daily if using a lid by briefly opening it. The most active phase lasts 1–3 weeks.
- After 4–6 weeks, the fermentation quiets. The garlic is edible now but continues improving for 2–3 months. After 3 months, the cloves are fully mellowed and the honey is deeply infused.
What to expect at each stage
| Timeline | What’s happening | Flavor/appearance |
|---|---|---|
| Days 1–3 | Honey thinning from moisture extraction | Honey still sweet, garlic still sharp |
| Days 4–10 | Active fermentation; CO₂ bubbles visible | Slightly tangy honey; garlic beginning to mellow |
| Weeks 2–4 | Fermentation slowing; lactic character developing | Garlic noticeably milder; honey more complex |
| Month 2–3 | Aging; garlic darkening slightly | Garlic sweet-savory, minimal sharpness; honey deeply flavored |
| Month 3+ | Stable; preservation complete | Best flavor; keeps indefinitely at room temperature |
Common Questions
My garlic turned blue or green. Is it ruined?
Not ruined, garlic turning blue, green, or teal during fermentation is a well-documented and harmless reaction. Garlic contains sulfur compounds (allicin, alliin) that react with trace copper in the honey or with amino acids in the garlic under acidic conditions to produce blue-green pigments. The phenomenon is more common with young fresh garlic or garlic from certain varieties. It doesn’t indicate spoilage, harmful bacteria, or any flavor problem, the discolored cloves taste identical to non-discolored ones. The color fades partially with continued aging.
Does fermented garlic honey need refrigeration?
No, the combination of honey’s natural antimicrobial properties, the lactic acid produced during fermentation, and the low water activity of honey-preserved garlic makes it shelf-stable at room temperature essentially indefinitely. Traditional preserved garlic preparations were stored unrefrigerated for months before modern refrigeration existed. Keep the jar sealed after the active fermentation phase is complete (cloves must remain submerged under honey) and store in a cool, dark location. The flavor continues developing at room temperature; refrigeration slows this development without being necessary for safety.
