A Drum of Honey That Froths and Another That Granulates
In the third week of June, a beekeeper in Sitapur extracts 96 kg of honey from 16 colonies working ber (Ziziphus mauritiana) and Prosopis. The buyer wants delivery before the monsoon, so he harvests combs that are only about 60% sealed and extracts at 9 a.m., when the nectar is thin. The honey is strained through a cloth into a plastic drum that previously held edible oil, and the drum is left standing in the sun for two days because "warm honey flows and settles better". On the third day there is white froth on the surface and a sour, alcoholic smell at the rim; a refractometer reading taken earlier gave 23.5% moisture. Separately, a shopkeeper has returned 10 kg from a March batch because it has turned into a stiff, grainy mass and he calls it adulterated, even though it looks and smells normal otherwise.
1. Explain what has happened in the drum and in the March jar, and why they are two different problems.
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The drum: fermentation caused by too much water. Honey at 23.5% moisture has more water than the osmophilic yeasts naturally present can be held in check by; the safe working limit is about 20% (the FSSAI limit for honey), and above roughly 20% yeasts multiply and convert sugars to alcohol and then acetic acid - hence froth, sour-alcoholic smell, and a falling pH. Two of the beekeeper's own decisions created it: harvesting 60%-sealed combs in the morning of a humid June day, so unripe nectar with high water content went into the extractor; and leaving the drum in the sun, where the drum breathes with day-night temperature cycles and condensed water collects at the surface.
The March jar: granulation, which is not a defect. Honey is a supersaturated sugar solution; glucose crystallises out on standing, fastest at low temperatures (around 10–15 °C) and on the surface of pollen or dust nuclei. Ber honey is glucose-rich and granulates readily. It is safe, unfermented and normal; the shopkeeper has mistaken a physical change for adulteration.
The distinction that matters: fermentation is a biological spoilage with an off-smell, froth and rising acidity - a genuine quality failure. Granulation is a reversible crystallisation with no off-odour; it becomes a problem only because the customer misreads it.
2. What can and cannot be done with the 96 kg now, and what must the beekeeper refuse to do?
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What is salvageable: if the fermentation is only at the surface (froth and smell at the rim, bulk still clear), the lot can sometimes be saved for industrial or bakery use at a reduced price after skimming, but it should not be sold as table honey in a retail pack, and never as a premium brand. If the whole drum smells of alcohol and vinegar and the froth is throughout, it is a total loss for human consumption - do not blend it with good honey.
Practical steps:
- Do not bottle it. Sample from the centre and send for moisture/acidity testing; the buyer's rejection stands until the numbers are acceptable.
- Do not boil or "cook off" the water. Boiling drives off aroma, darkens the honey and sharply raises HMF, turning a fermentation problem into a legal one.
- Do not mix it with the March granulated batch to hide the smell.
- Do not reuse that oil drum - honey is acidic and takes up odours and residues; food-grade plastic or stainless steel only, and even edible-oil drums must be verified food-grade.
What to do instead now: decant the salvageable honey into clean food-grade containers, keep it cool and closed, and sell it at a discount for processing use with the defect declared. Write the loss off honestly in the books; a 96 kg loss is cheaper than a reputation loss, and the buyer will test the next delivery.
3. Redesign the harvesting and storage practice so that next season's crop does not repeat this, and say how the granulation complaint should be answered.
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Harvesting:
- Uncap only combs that are at least 80–90% sealed, or shake-test: a sharp downward shake should not throw out droplets. Ripeness in the hive is cheaper than drying in the shed.
- Extract in the late morning after the dew has dried, not at dawn, and never extract brood combs or combs with unsealed nectar mixed in.
- Keep extracted honey covered immediately - honey is hygroscopic and picks up moisture from humid June air within hours.
Storage:
- Food-grade, non-reactive containers, filled to the top to minimise headspace, closed, in a cool dark room - never in the sun.
- If moisture is 20–21%, ripen it in a warm, ventilated, dehumidified room with a fan over shallow trays (or let the bees finish it in the hive before extraction), keeping the honey below about 45 °C to protect HMF and aroma.
- Record moisture for every lot; buy a refractometer and use it before the honey leaves the shed.
Answering the March complaint: explain, patiently and in writing, that granulation is crystallised glucose, a natural sign of pure honey, and demonstrate the remedy - stand the jar in warm water at 45–50 °C until it clears. Then prevent repeat complaints by labelling the ber honey as a naturally granulating honey and by offering it in small jars, and by warming and gently stirring (not boiling) the batch before packing so that fine crystals form uniformly and the set is smooth rather than gritty.