Summary
- Sugaring is the name commonly given to the small white or beige spots, and the slightly grainy texture, that can appear on and under the skin of dates over time. It is generally described as a natural crystallisation of the fruit’s own sugars.
- It is usually treated as a quality and appearance issue, not as spoilage. But it can be confused with mould or with traces of pests, so every importer and retailer should know how to tell them apart.
- Sugaring is generally favoured by time, temperature swings, dry air and packaging that lets the fruit lose moisture. It tends to show more on older stock than on fresh new-crop fruit.
- What helps in practice: stable, cool and dry storage, well-closed packs, strict first-in, first-out rotation, and ordering volumes you can sell in time.
- Agree with your supplier, before shipping, on a simple specification, a reference sample and photos at loading, so that both sides judge the fruit from the same starting point.
- Explain it honestly to your customers when needed. To discuss a first order of Tunisian Deglet Nour, request a quote or message us on WhatsApp at +216 52 146 101.
Why this question comes up so often
Sooner or later, almost every buyer of dates receives the same message from a customer, a shop manager or a quality colleague: “There are white spots on the dates. Are they still good?” Often, what people are looking at is sugaring: a well-known phenomenon in the date trade, not specific to Tunisia or to one supplier. Yet it causes worry, unnecessary claims and misunderstandings between buyers and suppliers, simply because it was never discussed in advance.
This guide, for importers, wholesalers and retailers abroad, explains in general terms what sugaring is, how to recognise it, what favours it and how to reduce it. It does not replace the advice of a food technologist or your quality team. Our guides on warehouse storage and arrival inspection cover those topics more broadly.
What sugaring is, in general terms
Dates are naturally rich in sugars. As the fruit ages after harvest, part of these sugars can migrate towards the surface and crystallise, either just under the skin or on the skin itself. The result is what the trade calls sugaring, sugar spotting or sometimes sugar bloom.
What it usually looks like
- Small white, cream or beige spots, often on the skin, sometimes in patches.
- A granular, crystalline appearance when you look closely, rather than a soft or fluffy one.
- A grainy or slightly crunchy bite, especially just under the skin.
- A fruit that may look a little paler or duller than fresh fruit, with the skin sometimes separating slightly from the flesh.
Why Deglet Nour can show it
Deglet Nour is usually described as a semi-dry date, and the balance of sugars is generally said to differ between varieties, which influences how each behaves in storage. The practical point is simple: Deglet Nour, like other dates, can develop sugaring as it ages, and good storage and rotation make a real difference.
What sugaring is not
Sugaring is generally considered a change in appearance and texture, not a sign that the fruit is rotten. But it makes the product look older and can disappoint a customer who expects the glossy, amber look of fresh Deglet Nour: a commercial issue worth managing.
Telling sugaring apart from mould and pests
Sugaring, mould and pest damage can all look like “spots” in a blurry photo, but they are very different problems. If in doubt, set the lot aside and ask a qualified person to look at it.
| What you see | Sugaring (sugar crystals) | Mould | Pest damage |
|---|---|---|---|
| Appearance | White, cream or beige spots, granular or crystalline | Fuzzy or powdery growth, often white, grey, green or dark | Small holes, tunnels, webbing, droppings or insects |
| Texture | Hard, grainy, slightly crunchy | Soft, furry or slimy | Damaged flesh around the hole |
| Smell | Normal date smell | Often musty or fermented | Can be normal or stale |
| Location | On the skin and just under it, often spread across many fruits | Can start at a crack or a damaged area | Often near the stem end or inside the fruit |
| Usual meaning | Ageing of the fruit, storage conditions | Excess moisture, damaged fruit or packaging | Infestation; needs immediate attention |
| First reaction | Check age and storage; separate if appearance is unacceptable | Isolate the lot; do not sell; document | Isolate the lot; do not sell; document |
A few simple checks
These are general observations used in the trade, not laboratory tests:
- Look closely in good light, ideally with a magnifier. Sugar crystals look like tiny grains; mould looks like threads or fluff.
- Touch with a clean tool: crystals are hard and do not smear; mould is soft and may come off as a powder or a film.
- Smell the carton and a few fruits: a musty or sour smell is a warning sign that sugaring alone does not explain.
- Open several fruits: look for holes, tunnels, webbing or insects inside. Sugaring does not create holes.
- Compare with your reference sample: if fresh fruit from the same supplier never showed these signs, note the difference.
When the answer is unclear, treat the lot as suspect until someone competent has examined it.
What tends to favour sugaring
Sugaring is generally linked to a combination of factors rather than a single cause. The points below are widely described in general terms; how much each one matters depends on the fruit, the packaging and the route.
Time since harvest
The longer dates are kept, the more likely they are to show some sugaring. Fruit from the new crop, harvested in Tunisia generally between October and December, usually looks fresher than fruit that has been stored for many months. Our article The Tunisian Deglet Nour Year for Importers explains how the crop year affects what you receive in different seasons.
Temperature swings
Repeated changes of temperature, for example between a warm truck, a cold warehouse and a heated shop, are generally considered unfavourable, as they can affect moisture movement in the fruit and condensation on the packaging.
Dry air and moisture loss
When dates lose moisture, their sugars become more concentrated and crystallisation is generally more likely. Very dry storage areas, open cartons and packs that do not close properly all contribute to this.
Packaging
Packaging that protects the fruit from the surrounding air usually helps to slow moisture loss. Damaged cartons, broken liners or packs left open after sampling expose the fruit. If you repack Deglet Nour into retail boxes, the choice of material and the quality of the closure matter; our guide Planning Retail Packs and Labels for Tunisian Deglet Nour covers packaging questions in general.
The overall storage chain
Sugaring often reflects the whole journey of the fruit: storage before shipping, transport, customs, your warehouse, your customer’s back room and finally the shelf. A weak link anywhere in that chain can show up as white spots weeks later.
How importers and retailers can reduce sugaring
You cannot control everything that happens to the fruit, but you control a large part of its life once it reaches your market. The measures below are general good practice; adapt them with your quality team and your logistics partners.
Keep storage cool, dry and, above all, stable
Dates are generally kept in a cool, dry place, away from direct heat, sunlight and strong odours. Precise settings depend on the product, the packaging and the holding time, so set them with a specialist or your cold-store operator rather than from a general article. The key idea is stability: avoid moving cartons repeatedly between very different environments.
Keep packs closed
- Reseal liners and cartons after taking samples.
- Avoid leaving cartons open in the warehouse or in a shop’s back room.
- Check that retail packs close well and stay closed during handling.
- Replace damaged cartons or liners rather than leaving fruit exposed.
Rotate stock strictly
First-in, first-out rotation is the simplest and most effective tool. Mark each pallet or carton with its arrival date and lot code, and make sure the oldest stock leaves first, both in your warehouse and at your customers’ premises. Our warehouse storage guide gives practical rotation tips.
Order volumes you can sell in time
A large shipment that sits for months is more likely to show sugaring than smaller, more frequent shipments that sell through quickly. Compare each quantity with your realistic sales pace. Our guide to building an annual supply programme explains how to split a yearly need into scheduled shipments.
Protect the fruit during transport
Ask your forwarder how the goods will travel, how long they may wait at the port or at customs, and whether temperature-controlled transport suits your route and season. Our shipping guide for first-time importers covers transport in general.
Brief your customers
Retailers and food-service customers often keep dates near ovens, windows or in warm stockrooms. A short storage note sent with the goods can prevent many complaints.
| Stage | Main risk for sugaring | Practical measure |
|---|---|---|
| Arrival at your warehouse | Fruit waiting in a warm or exposed area | Move to storage quickly; inspect and record condition |
| Warehouse storage | Long holding times, unstable conditions | Stable, cool and dry storage; FIFO rotation |
| Picking and sampling | Cartons and liners left open | Reseal after each opening |
| Delivery to customers | Temperature changes in transit | Plan routes and timing; avoid long waits in heat |
| Shop back room | Warm, dry or unstable storage | Short storage advice for the customer |
| Shelf | Light, heat, open displays | Small display quantities, refilled often |
What to agree with your supplier before shipping
Sugaring causes the most friction when buyer and supplier have never talked about it. A few simple points agreed in advance make every later conversation easier.
A simple specification
Describe the product in plain words: variety (Deglet Nour), origin (in our case, the oases of Douz and Kébili in the Nefzaoua region of southern Tunisia), form (standard dates, branch dates, pitted on request or Arjoun), and the appearance and texture you expect. You can mention sugaring explicitly and describe in words what level you consider acceptable for your market, rather than leaving it implicit.
A reference sample
Keep a reference sample from a lot you approved, with photos and a written description. Our guide Evaluating Deglet Nour Samples Before a First Order explains how to assess and keep samples. Remember that a reference sample also ages: note its date and store it in the same conditions as your stock.
Photos at loading
Ask whether photos or short videos of the goods and packing can be shared at loading. They show the condition of the fruit when it leaves Tunisia. Our article on working with a Tunisian date supplier suggests how to organise these exchanges in writing.
Shelf life and harvest information
Ask which crop the fruit comes from and agree on how best-before information will appear on cartons or packs. These details help you plan rotation and explain the product to your customers.
How a problem will be handled
Agree how a quality issue found on arrival will be reported (photos, lot codes, retained samples, time limit) and how it will be discussed. Our guide Arrival Inspection and Quality Claims for Tunisian Dates describes the usual steps. With Azzed, how a claim is settled is agreed case by case in the quote. Keep in mind that sugaring which develops after weeks in a buyer’s warehouse is usually a different situation from fruit that arrives already affected, which is exactly why photos at loading and on arrival are useful.
How to talk about sugaring with your customers
Your customers do not need a technical lecture, but they appreciate a clear and honest answer:
- Be factual and calm: white spots on dates are often natural sugar crystals that form as the fruit ages, which is different from mould. If you have not checked the lot yet, say that you will.
- Never dismiss a doubt: fuzzy growth, an unusual smell or insects point to a possible mould or pest issue, not sugaring. Ask for photos, check the lot and withdraw it if necessary.
- Give simple storage advice: a closed container, in a cool, dry place away from heat and sunlight. Keeping dates in the refrigerator in a closed container is also common household advice.
- Adapt your shelf strategy: display smaller quantities and refill often. If some stock shows visible sugaring, decide with your quality team how to handle it, according to your own policies and local rules.
Common mistakes
- Calling every white spot “mould”: this leads to unnecessary claims and wasted product. Look closely first.
- Calling every white spot “sugaring”: the more serious mistake. When anything looks fuzzy, smells wrong or shows holes, isolate the lot.
- Overordering to save on price: a bigger lot can look cheaper per unit but cost more if part of it ages on the shelf.
- Storing dates wherever there is space: a warm corner or a spot near a loading door can undo careful planning.
- Not keeping records: without arrival photos, lot codes and dates, it is hard to understand when and where a change happened.
Frequently Asked Questions
Is sugaring a sign that the dates have gone bad?
Sugaring is generally described as a natural crystallisation of the fruit’s sugars and a change in appearance and texture, rather than spoilage. However, it must not be confused with mould or pest damage. When in doubt, set the lot aside and have it examined.
How can I quickly tell sugar spots from mould?
Sugar spots usually look granular and feel hard and grainy, with a normal date smell. Mould usually looks fuzzy or powdery, may be coloured, and often smells musty. Use the comparison table above and ask a qualified person when the answer is not clear.
Does Deglet Nour develop sugaring more than other varieties?
Varieties behave differently in storage, and Deglet Nour, like other dates, can show sugaring as it ages. Good storage, closed packaging and quick rotation are the most practical ways to limit it, whatever the variety.
Does new-crop fruit show less sugaring?
Fresh fruit from the new crop, harvested in Tunisia generally between October and December, usually shows less sugaring than fruit stored for many months. Our harvest calendar article explains the crop year.
What storage conditions should I use?
In general, cool, dry and stable conditions, away from heat, sunlight and strong odours, in closed packaging. Precise settings depend on your product, packaging and holding time, so set them with a specialist or your cold-store operator. See our warehouse storage guide.
Can I mention sugaring in my specification?
Yes. Describing in words the appearance and texture you expect, including what level of sugaring you consider acceptable, helps both sides. Combine it with a reference sample and photos at loading.
What if a shipment arrives with visible sugaring?
Document it on arrival with photos, lot codes and retained samples, compare with the reference sample, and report it within the time agreed. Our guide on arrival inspection and quality claims describes the steps; how a claim is settled is agreed in the quote.
Where do your dates come from?
Our Deglet Nour comes from the oases of Douz and Kébili, in the Nefzaoua region of southern Tunisia. See our Deglet Nour dates and Quality pages.
Conclusion
Sugaring is one of the most common questions in the date trade, and one of the easiest to manage once it is understood. In general terms, it is a natural crystallisation of sugars that becomes more likely with time, temperature swings, dry air and exposed packaging. The essential skill is to tell it apart from mould and pests, and the essential habits are stable, cool and dry storage, closed packs, strict rotation and orders sized to your sales pace.
Talk about it with your supplier before the first shipment: a simple specification, a reference sample and photos at loading turn a potential dispute into a shared, factual conversation. And when your customers ask, give them a calm, honest answer and simple storage advice.
Azzed is a local Tunisian Deglet Nour brand from the oases of Douz and Kébili. We are still building our export activity, and we study every request from small and mid-sized buyers for all our products: standard dates, branch dates, the Arjoun and pitted dates on request. To prepare a first order, request a quote, read our Export page, browse our Products, or message us on WhatsApp at +216 52 146 101.
Read next: Storing Deglet Nour Dates in Your Warehouse
