You can use Manuka honey in cooking, but it helps to decide what you want it to contribute. Are you using it as a sweet ingredient in a baked dish, or do you want to enjoy it with as little additional heating as possible?
Honey has established culinary uses in baking, sauces, spreads and glazes. The National Honey Board’s cooking guidance makes an important practical distinction: when you add honey can depend on the cooking method and the result you want. (honey.com)
For Manuka honey, there is another consideration: heating can change its composition, and different components do not necessarily respond in the same way. Research has examined changes in MGO and other characteristic compounds during heating, while separate honey studies have measured changes in enzyme activity. (europepmc.org)
Our practical recommendation is straightforward:
Use honey during cooking when the recipe calls for it. When your priority is avoiding additional heat exposure, add your Manuka honey after cooking rather than keeping it in the pan or oven throughout.
That is a preparation choice—not a guarantee that every component remains unchanged.
1. Start with the job you want the honey to do
There are two useful ways to approach Manuka honey in the kitchen.
As a cooking ingredient
The honey becomes part of the recipe. You might incorporate it into a sauce, bake it into a cake or use it in a glaze.
Choose this approach because you want the finished food—not because you expect the cooked dish to retain the honey’s original laboratory characteristics.
As a finishing ingredient
The dish is prepared first, and honey is added afterwards.
This is the approach we recommend when you want to limit further heating or compare the honey’s flavour more directly. It also lets each person adjust the amount on their own serving.
The following are suggested preparation approaches, not recipes tested by Australian Honey Company.
| What you are preparing | Suggested approach |
|---|---|
| Warm oats or porridge | Cook first, remove from the heat, then stir honey into the portion you are about to eat |
| Roasted vegetables | Prepare and cook the vegetables normally; add a small drizzle before serving |
| A honey-based baking recipe | Follow the recipe’s method and accept that the honey is being cooked |
| A dressing or cold topping | Mix only the amount needed, without heating the honey unnecessarily |
| A sauce that must be cooked thoroughly | Complete the required cooking safely; add a separate finishing drizzle afterwards if desired |
The distinction is useful because “using honey in food” does not have to mean exposing all of it to the entire cooking process.
2. What changes when honey is heated?
It is more accurate to discuss particular components than to say that heat either preserves or destroys “all the goodness.”
Enzyme activity can decrease
A study comparing ultrasound treatment with conventional heating measured diastase activity and HMF in raw honey. Under the tested thermal-processing conditions, enzyme activity fell, and the duration of exposure affected the result.
This was research on the honey samples used in that experiment—not a Manuka-specific kitchen temperature chart. (pmc.ncbi.nlm.nih.gov)
MGO can undergo chemical changes
A study published in Food Chemistry investigated nine characteristic compounds in Manuka honey during heating. Its findings supported chemical reactions involving MGO and amino compounds as one pathway for MGO loss.
The same study found that another characteristic compound, 2′-methoxyacetophenone, could escape into the headspace above the honey. Different compounds were therefore changing through different mechanisms. (europepmc.org)
HMF is another useful laboratory measurement
Laboratory services commonly measure HMF alongside MGO and DHA when assessing Manuka honey. ALS Food & Environmental NZ explains that these measurements can change over time and under different storage temperatures.
A forecast or test result is specific information about a sample and its conditions—not something that can be read from a spoonful’s appearance. (analytica.co.nz)
For home cooking, the important point is that sweetness, enzyme activity and MGO concentration are not interchangeable measures. A food can still taste sweet after its other characteristics have changed.
3. What does Manuka-specific heating research show?
A 2021 study in the Journal of Cookery Science of Japan investigated the thermal stability of characteristic Manuka compounds.
In its ten-minute temperature comparisons, MGO was reported as stable up to 90°C under the experimental conditions. At 150°C for ten minutes, MGO fell to approximately 12% of its starting level. The authors recommended lower processing temperatures and shorter heating times to reduce losses. (jstage.jst.go.jp)
These findings need careful interpretation.
They do not establish that every recipe preserves MGO below 90°C, that every honey behaves identically, or that a ten-minute experiment predicts a much longer cooking process. They also do not measure a health benefit from eating the finished food.
The useful lesson is that temperature, exposure time and the conditions of preparation matter. A single laboratory result should not become a universal household rule.
Similarly, an oven setting does not describe every part of a recipe’s thermal history. Without testing the finished preparation, we cannot calculate its remaining MGO simply from the temperature selected on the appliance.
4. When should you add Manuka honey?
Our recommendation depends on your purpose.
For warm breakfasts
Prepare your oats or porridge first. Take the portion off the heat and let it cool to an appropriate eating temperature before adding the honey.
This avoids deliberately simmering the honey throughout preparation. It is not a laboratory assurance about the remaining concentration or enzyme activity.
Start with a small amount, mix and taste before adding more.
For roasted vegetables or other cooked dishes
One option is to cook the food without honey, then add a small amount just before serving. This separates cooking the main food from adding the honey.
If you specifically want a cooked honey glaze, use a suitable recipe. The glazed result and an uncooked finishing drizzle are different culinary choices; neither needs to be presented as the only correct way to enjoy honey.
For sauces and dressings
For a dressing that does not need cooking, there is no need to heat the honey simply because you are incorporating it into a meal.
For a cooked sauce, decide whether the honey must be part of the cooking process or whether some can be added afterwards. Do not shorten essential food-safety steps to protect the honey’s composition.
For hot drinks
This article focuses on cooking rather than tea preparation. For that specific use, see our guide to putting honey in tea.
The same practical distinction applies: adding honey after preparation avoids keeping it over heat for longer than necessary.
5. Can you bake with Manuka honey?
Yes—but choose it as a baking ingredient, not as a way to guarantee the original grade in the finished cake.
Honey is used in established baking recipes, and it affects more than sweetness. The National Honey Board describes its moisture-retaining role and provides guidance on adjustments to liquid ingredients, raising agents and oven temperature when replacing granulated sugar. (honey.com)
For a first attempt, our recommendation is to use a recipe already formulated for honey rather than replacing all the sugar in an unfamiliar recipe.
There is no need to assume that a more expensive Manuka grade will automatically produce a better cake. Consider the recipe, your flavour preferences and your budget.
A useful alternative is to bake the dish using your chosen recipe, then serve your preferred Manuka honey alongside it or drizzle it over an individual portion after cooling.
This approach keeps the baking decision separate from your choice of finishing honey.
6. Does the jar’s MGO grade carry over to the meal?
No—the grade on the jar should not automatically be assigned to a sauce, drink or baked dish made with it.
MGO labels describe a concentration in the honey. For example, MGO 500+ declares at least 500 milligrams per kilogram of honey. (australianhoneycompany.com.au)
Once you mix that honey with other ingredients, you have a different food with a different total weight. Even before considering any heating effects, you cannot assume that the original concentration describes the whole mixture.
Heating adds further uncertainty because the composition may change during preparation. The research discussed above concerns particular samples and conditions; it does not validate the MGO content of a home recipe. (europepmc.org)
It is accurate to say:
“This dish was made with MGO 500+ Manuka honey.”
That is different from describing the finished dish itself as “MGO 500+.”
For an explanation of the measurement, read what MGO means in Manuka honey.
7. Which Manuka honey should you choose for cooking?
Begin with how you intend to use it.
For a recipe involving prolonged heating, our recommendation is to choose a honey whose flavour and price make sense for the finished dish. For an unheated topping, choose the jar you most enjoy eating in that form.
You can compare our MGO 100+ Australian Manuka honey and MGO 500+ Australian Manuka honey as different labelled grades within the range. Their grades identify declared concentrations, not a cooking-performance score. (australianhoneycompany.com.au)
Do not buy a higher grade on the assumption that it is “heatproof,” and do not assume that increasing the amount compensates predictably for cooking losses.
Our Manuka strength-selection guide can help you compare the products before deciding which one suits your purchase.
8. Keep ordinary food safety separate from honey quality
Adding honey does not remove the need to handle the other ingredients safely.
The NSW Food Authority advises marinating foods in the refrigerator, keeping raw and cooked foods separate, and following storage and cooking instructions. (foodauthority.nsw.gov.au)
For a honey-based marinade, a practical approach is to reserve a separate, clean portion for finishing before the rest touches raw meat. Do not drizzle used, uncooked marinade over ready-to-eat food. (foodauthority.nsw.gov.au)
Likewise, do not assume a homemade mixture can be stored in the cupboard because one ingredient is honey. Follow storage guidance for the complete preparation, particularly when it contains ingredients that require refrigeration. (foodauthority.nsw.gov.au)
For the jar itself, see our honey storage guide.
Do not give honey to babies under 12 months. Do not use the cooking suggestions in this article as a way around that advice. (nhs.uk)
Frequently asked questions
Does everything change the moment honey reaches 40°C?
The evidence does not support treating one temperature as an instant switch for every component. MGO, enzymes and other compounds need to be considered separately, along with exposure time and the conditions being tested. (jstage.jst.go.jp)
Can a kitchen thermometer tell me how much MGO remains?
No. It can tell you the temperature at the point measured, but it does not measure MGO concentration. Laboratory honey testing uses analytical methods to determine the relevant compounds. (analytica.co.nz)
Is cooking with Manuka honey a waste?
That is a value judgement, not a scientific rule. If you enjoy it in a particular recipe and the cost suits your budget, cooking is a legitimate use.
When the main reason for your purchase is enjoying the honey with minimal additional heating, we recommend using it as a finishing ingredient instead.
The bottom line: choose the method to suit your purpose
Manuka honey can be part of both cooked recipes and unheated finishing touches. The important distinction is what you expect from each method.
For cooking, choose it for the dish you want to make. To minimise additional heat exposure, add it after cooking. Do not assume that a finished meal retains the jar’s original grade, and never compromise food safety to reduce heating.
Explore our Australian Manuka honey collection to compare product information and choose a jar that suits your preferences.
There is no need to fear every warm spoonful—or to assume heat changes nothing. Use the honey deliberately, understand the limits of the evidence, and enjoy it as food.