Key Points Manuka honey does not need to be refrigerated. Storage at room temperature, away from direct heat and light, is sufficient and is actually better than the refrigerator. Crystallization is normal and does not mean your honey is spoiled. This is the sign of true raw honey and is completely reversible without losing any beneficial properties. The MGO content in a well-stored jar of manuka honey does not degrade over time. Research suggests that it may actually increase slightly as DHA continues to convert to MGO during storage. The biggest threats to a jar of Manuka honey are humidity, heat, direct sunlight, and microwaving. All four can damage the beneficial compounds you paid for. Always use a dry spoon. Introducing moisture into the jar is one of the few things that can truly compromise the shelf life of honey and create conditions conducive to fermentation. A good jar of manuka honey is an investment. Ranging from $40 to $150 or more depending on the grade, knowing how to store it properly is no small feat. The good news is that Manuka honey is remarkably self-sufficient. Honey in general is one of the most stable foods in the world. Archaeologists have discovered honey in ancient Egyptian tombs that was still edible thousands of years later.
That said, manuka honey has properties worth preserving beyond basic edibility. The concentration of MGO, live enzymes and beneficial compounds worth it are more sensitive than the honey itself. Here’s exactly how to store manuka honey to protect everything you paid for.
How to Store Manuka Honey Room temperature is ideal Store your manuka honey at room temperature, ideally between 50°F and 77°F (10°C to 25°C). A kitchen cabinet or pantry shelf away from the stove, oven, and any direct heat sources is perfect. It’s not a compromise. Room temperature is truly the best storage condition for manuka honey, not just the most convenient.
Honey stored at room temperature retains its natural viscosity, dissolves easily when you need it, and allows the slow natural conversion of DHA to MGO to continue over time. This last point is significant: a well-stored jar of manuka honey does not simply retain its potency. Research indicates that MGO content may actually increase slightly during storage because the DHA in honey continues to convert naturally, provided the jar is kept at room temperature and away from heat and light.
Keep it away from direct light Ultraviolet light degrades beneficial enzymes and compounds in honey over time. A closet or pantry is ideal. A countertop pot in a sunny kitchen window is not. The original amber or dark glass jar containing most quality manuka honey provides some protection from light, but the safest approach is to store it in a dark place, regardless of the container.
Keep the lid tightly closed Honey is hygroscopic, meaning it naturally absorbs moisture from the surrounding air. Too much absorbed moisture increases the water content of honey above the level that inhibits microbial growth, which gives honey its shelf stability in the first place. A tightly closed lid is the simplest protection against this phenomenon. After each use, close the jar completely rather than leaving it loosely covered.
Always use a dry spoon This is the storage rule that most people overlook and is most likely to cause a real problem. A wet spoon introduces water directly into the honey, creating localized pockets of higher humidity that can lead to fermentation over time. Keep a dedicated dry spoon near your jar of manuka honey and make it a habit. Rinse and dry any scoop completely before returning to the pot for a second scoop.
Store it in the original jar The original jar your manuka honey came in was chosen for a reason. Dark glass or food-grade plastic minimize exposure to light and prevent chemical leaching. If you transfer manuka honey to another container, make sure it is completely clean, completely dry, and food safe. Glass is preferable to plastic for long-term storage. Avoid metal containers, which can react with the natural acids in honey over time.
Does Manuka honey need to be refrigerated? No. Manuka honey does not need to be refrigerated and is best stored at room temperature. Refrigeration is not harmful to honey, but it poses two problems that make it a poor storage choice for manuka in particular.
First, cold temperatures greatly accelerate crystallization. A jar of manuka honey that may take months or years to crystallize at room temperature will crystallize in a few weeks in the refrigerator. This is not a safety issue, but it makes the honey much more difficult to use and creates a temptation to microwave it to re-liquefy it, which destroys the beneficial compounds.
Second, cold storage slows the natural process of converting DHA to MGO, which can increase potency over time. Storing your manuka honey in the refrigerator essentially puts this beneficial process on pause.
The refrigerator is not where Manuka honey belongs. A cool, dark, dry closet is all it needs.
The short answer about refrigeration
No refrigeration needed. Room temperature in a closed jar away from heat and light is the ideal storage condition. The refrigerator speeds up crystallization and slows down the natural process of MGO development. Keep it in the closet.
Manuka Honey Crystallization: What Does It Mean and What to Do Crystallization is one of the most misunderstood things about honey. Many people assume this means the honey has gone bad or is no longer at its best. The opposite is true. Crystallization is the sign of authentic and pure raw honey. Heavily processed commercial honey that never crystallizes has often been heat treated to the point that natural glucose crystals cannot form, which is also the point where many beneficial compounds are damaged.
Manuka honey crystallizes thanks to its natural glucose content. The process is completely safe and does not affect the beneficial properties of honey. MGO, leptosperin, DHA, enzymes and antioxidants all survive crystallization intact. You don’t lose anything when your pot crystallizes except the pourable texture.
How to Reverse Crystallization Without Damaging Honey The correct method is gentle, indirect heat. Do not use a microwave. Do not place the pot in boiling water. Do not put it in a hot oven. All of these apply heat that exceeds the temperature threshold above which MGO and beneficial enzymes begin to degrade.
The right approach:
Fill a bowl or saucepan with lukewarm, not boiling, water. The water should be comfortable to touch, between 35°C and 40°C (95°F to 104°F). Place the sealed jar in warm water and leave it for 15 to 20 minutes. Stir gently during or after if necessary. Repeat with cool, warm water if the honey has not completely returned to a liquid state. This method returns the honey to a smooth, usable consistency while keeping the temperature low enough to preserve what you paid for. Patience is the key. Gentle heat over time rather than high heat applied quickly.
Never put your Manuka honey in the microwave
A microwave heats unevenly and quickly, easily reaching temperatures that damage natural enzymes, increase HMF levels, and shut down the DHA to MGO conversion process that sustains potency over time. The same goes for placing the pot in boiling water. The goal of crystallization reversal is hot, not hot. If the water is too hot to comfortably hold your hand in, it is too hot for your manuka honey.
What is the effect of heat on Manuka honey Heat is the main enemy of Manuka honey’s beneficial profile. Understanding what heat does and doesn’t do is important for both storage and use.
MGO itself is relatively heat stable and does not degrade as easily as some guides suggest. What damages high, sustained heat are natural enzymes, antioxidant activity, and the HMF profile. It also stops the natural process of converting DHA into MGO which supports potency over time. High levels of HMF are used by UMF quality testing as a marker for heat damage or overheating during handling, so reputable producers carefully monitor the temperature throughout production.
For storage, this means: keep manuka honey away from the stove, oven, and any hot appliances that generate ambient heat. A kitchen cupboard near the oven is not ideal. A pantry or closet on the opposite side of the kitchen from your cooking area is best.
For kitchen use, this means: avoid cooking with it or cooking at high temperatures for prolonged periods. The enzymes and antioxidants that supplement MGO are sensitive to heat even when the MGO itself survives. Use it as a finishing ingredient by drizzling finished dishes, stir it into hot (not boiling) drinks, and use it raw in cold preparations. Our guide to how to use manuka honey covers each application in detail with this principle integrated throughout. OUR lavender lemonade And hot and healthy toddy are both built to keep honey at the correct temperature.
Manuka Honey Shelf Life: What You Really Need to Know Honey has an almost indefinite shelf life when stored properly. This is not marketing language. This is one of the best-documented properties of honey in food science. The low moisture content, acidic pH, and hydrogen peroxide activity combine to create an environment in which microbial growth is effectively impossible in properly stored honey.
For Manuka honey in particular, the question of shelf life presents a nuance that is worth understanding. The honey itself will not spoil. But the MGO potency that makes Manuka honey worth buying exists within a specific range that can change over time in two directions.
See also
On the positive side, the MGO may increase slightly over the first two to three years of storage as DHA continues to convert. On the neutral side, after an extended period of time (usually beyond three to five years depending on initial DHA levels and storage conditions), the DHA pool may be depleted and MGO levels may begin to stabilize or slowly decline. Most reputable producers include an expiration date on the label that reflects the length of time the UMF rating is guaranteed. This date is not a deterioration date. This is a power assurance date.
For practical reasons: an unopened and properly stored jar generally retains its full effectiveness for three to five years from the date of packaging. Once opened, two to three years of proper storage will maintain quality. The expiration date indicated on the label is a date of assurance of activity and not a date of deterioration. A jar stored properly beyond this date is neither harmful nor spoiled. It may simply have a slightly different MGO profile than when first tested. Honey is still perfectly safe to eat and will still have important antibacterial and antioxidant properties.
Manuka Honey Storage Overview Postman Best practice Why it matters Temperature 50°F to 77°F (10°C to 25°C) Maintains viscosity and supports natural conversion of DHA to MGO Light Dark closet or pantry UV light degrades beneficial enzymes and compounds over time Humidity Sealed lid, dry spoon only Humidity increases water content and can trigger fermentation Container Original pot, preferably dark glass Protects from light and prevents chemical leaching Refrigeration Not recommended Accelerates crystallization and slows the conversion of DHA to MGO Freeze Safe but useless Does not damage honey but offers no advantage over storage at room temperature Shelf life Undefined for food safety. Best activity 3 to 5 years unopened, 2 to 3 years after opening. The expiration date reflects the potency guarantee and not food safety Traveling with Manuka honey This is a gap that most storage guides never fill. If you’re serious about your daily dose of wellness, you probably won’t leave your manuka honey at home when you travel. Some practical remarks:
Carry-on baggage rules: Honey is a liquid under TSA rules. A jar larger than 3.4 ounces (100 ml) cannot fit in your carry-on bag and must be checked. A travel size pot or small silicone squeezable container transferred from your main pot before departure solves this problem neatly. Heat in checked baggage: The holds are not air-conditioned to the same degree as the cabin. In very hot destinations, a pot in checked baggage on the tarmac can be exposed to significant heat. Wrap the pot in clothing and move it away from the outside of the bag, where heat is transmitted most quickly. Hotel Room Storage: Keep it away from the window and minibar area which may be warmer than the rest of the room. The desk drawer or shelf in the main room rather than the bathroom (which tends to be more humid) is ideal. International travel: Some countries restrict the importation of honey. Check your destination’s customs regulations before packing a pot in your luggage. Frequently Asked Questions Should manuka honey be refrigerated? Storage at room temperature in a sealed jar, away from direct heat and light, is ideal. Refrigeration speeds up crystallization and slows down the natural process of MGO development. A kitchen cupboard or pantry is all you need for manuka honey.
Why has my manuka honey crystallized? Crystallization is a natural process in real raw honey caused by the glucose content forming solid crystals over time. This does not mean that the honey has spoiled or lost its beneficial properties. The MGO, enzymes and antioxidants all survive crystallization intact. To return it to a liquid state, place the sealed jar in warm (not boiling) water for 15 to 20 minutes and stir gently.
Can you put manuka honey in the microwave to decrystallize it? No. A microwave heats unevenly and quickly, easily reaching temperatures that damage natural enzymes, increase HMF levels, and compromise the beneficial compound profile of your honey. Instead, use lukewarm water in a bowl. The goal is gentle, indirect heat over 15 to 20 minutes, not quick, high heat.
How long does manuka honey last? Stored properly at room temperature in a sealed jar, manuka honey has an almost indefinite shelf life from a food safety perspective. An unopened jar generally retains its full effectiveness for three to five years from the date of packaging. Once opened, two to three years of proper storage will maintain quality. The expiration date indicated on the label is a date of assurance of activity and not a date of deterioration. A jar stored properly beyond this date is still edible and will retain significant beneficial properties.
Does Manuka honey go bad? No. Manuka honey does not spoil like perishable foods do. Its low moisture content, acidic pH and natural antibacterial properties make it one of the most stable foods in the world. What may change over time is the flavor, texture, and potency of MGO, especially after the expiration date. A properly stored jar can still be safely consumed well beyond this date. It is simply not guaranteed to match the UMF grade listed on the label once the activity assurance window has passed.
Yes, freezing does not damage honey or its beneficial properties. However, it offers no advantage over room temperature storage. Honey stored properly at room temperature has an almost indefinite shelf life without freezing. The main disadvantage of freezing is that it will need to be thawed before use, and rapid thawing with heat defeats the purpose. There is no good reason to freeze manuka honey if you store it properly at room temperature.
Does the MGO in Manuka Honey break down over time? Not in good storage conditions and not in the short or medium term. Research indicates that the MGO content of properly stored Manuka honey may actually increase slightly over the first two to three years of storage, as DHA continues to convert to MGO. After this initial period, MGO levels plateau and may gradually decline as the DHA pool is depleted, usually beyond three to five years depending on initial DHA levels. Proper storage at room temperature, away from heat and light, supports this natural process.
What happens if Manuka honey gets hot? Prolonged exposure to high heat degrades MGO, destroys natural enzymes, reduces antioxidant activity, and increases levels of HMF, a marker of heat damage used in quality testing. For storage, keep the jar away from hot appliances and direct sunlight. For use, do not cook or bake with manuka honey at high temperatures. Stir it into hot (not boiling) drinks and use it cold or as a finishing drizzle on finished dishes.
Is it OK to store manuka honey in plastic? High quality food grade plastic is safe for short to medium term storage. For long-term storage, dark glass is preferable as it provides better protection from light and eliminates any risk of chemical leaching of the plastic over an extended period of time. Store it in the original jar when possible, as producers choose their containers with the storage stability of the honey in mind.
For everything you need to know about using manuka honey correctly once you’ve stored it properly, check out our guide to how to use manuka honey. For the complete guide to what’s worth buying in the first place, start with our Guide to the benefits of Manuka honey. And for our complete collection of recipes, beauty treatments and wellness guides using Flora health manuka honey, everything is there The Manuka honey guide to better living.
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