Why Most Dried Apricots Contain Sulphur Dioxide and How to Avoid It

Dried apricots sit in Australian pantry cupboards year-round, tossed into lunchboxes, muesli, and weekend bikepacking bags. Yet a glance at the back of most packets reveals an ingredient many shoppers don't expect to find in something that looks so wholesome. Listed often as preservative (220), sulphur dioxide has been doing the same job in dried fruit for centuries, but that long history doesn't mean the additive suits everyone.

Australia imports most of its dried apricots from Turkey, Iran, and Uzbekistan, and the major supermarkets stock both Australian-grown and imported varieties. Roughly fifty grams per person per week from supermarkets like Woolworths and Coles is a typical estimate, with dried apricots consistently ranking in the top three dried fruits by sales volume. Bulk bins at health food stores in Melbourne's inner north, Adelaide's Central Market, and Brisbane's Jan Powers Farmers Markets regularly sell Turkish and Afghan varieties that look natural but still arrive treated.

This article walks through why sulphur dioxide is so common in dried apricots, what Australian food law permits, and how to confidently track down genuinely preservative-free options. Along the way we'll touch on label-reading, sulphite reactions, and the kinds of small Australian producers who skip the additive altogether.

What Sulphur Dioxide Does in Dried Fruit

Sulphur dioxide (SO₂) is a gas that has been used in winemaking and food preservation for centuries. In dried fruit, it acts as both an antimicrobial and an antioxidant, slowing the browning reactions that turn a bright orange apricot into a dull brown puck. It also discourages mould growth during long sea shipments from growing regions like Turkey, Iran, and Uzbekistan, which supply most of Australia's dried apricot imports.

The compound works by interfering with the enzymes and microbes that would otherwise break down the fruit's natural sugars and pigments. A treated apricot can sit on a Sydney supermarket shelf for twelve months and still look like it came off the tree yesterday. Without it, the same batch would darken, lose vitamin C, and risk fungal contamination well before its best-before stamp.

Australian food law, administered through Food Standards Australia New Zealand (FSANZ) under the Australia New Zealand Food Standards Code, sets strict maximum levels for sulphites in dried fruit. The current limit for dried apricots sits at 3000 mg/kg, which is high enough to preserve colour but also high enough to trigger reactions in people who are sensitive. Because the compound is so effective and so cheap, most commercial packers default to using it unless they specifically market a preservative-free product.

Why Apricots Get Treated More Than Other Dried Fruits

Not every dried fruit needs the same level of preservation. Grapes become raisins relatively easily, and dates, figs, and prunes all have naturally low water activity that resists spoilage. Apricots are different. Their thin skin, high sugar content, and bright carotenoid pigments make them especially vulnerable to oxidation once dehydrated.

Sulphur dioxide is particularly effective at preserving the orange-red beta-carotene colour that shoppers associate with "fresh" dried apricots. The moment the pigment starts to oxidise, the fruit turns brown, and consumers read that colour change as a sign of staleness. Packers treat the fruit to lock in the colour as well as the safety margin, and that visual expectation is now baked into what people think a dried apricot should look like.

Compare this with prunes, which are already dark and don't need colour preservation, or banana chips, which are often sold as a snack with added sugar rather than as a pure dried fruit. Apricots straddle the line between snack and pantry ingredient, and that visual expectation makes the preservative load heavier. Some smaller Australian packers work around this by drying at lower temperatures and packaging quickly, but most bulk imports still arrive treated.

Sulphites, Reactions, and Who Should Pay Attention

For most Australians, the sulphites in dried apricots pass through the body without issue. Sulphite oxidase, an enzyme in the liver, breaks them down into sulphate, which is excreted normally. Roughly one in a hundred people, however, have a reduced ability to process sulphites, and a smaller subset — estimated at around three to five percent of people with asthma — react strongly to them. The most common reactions include wheezing, abdominal pain, and in rare cases anaphylaxis.

Sulphite sensitivity differs from a true IgE-mediated allergy, but it can feel just as severe. Triggers show up across the slate of supermarket staples: dried fruit, wine, vinegar, pickled vegetables, and some commercial breads. People who react often describe feeling breathless within minutes of eating dried fruit, which is why label-reading matters so much. The threshold for reactions varies widely, and some people react to doses as low as a few milligrams.

Australia's food labelling rules require sulphites to be declared when present at 10 mg/kg or more, so any treated dried apricot will list "sulphites" or "preservative (220)" on the back. That rule gives consumers a fighting chance, but only if they actually check. For a deeper look at how dried fruit fits into broader reactions, the fruit allergy guide covers related conditions and triggers.

Decoding Australian Dried Fruit Labels

Australian food labels follow the Australia New Zealand Food Standards Code, and the ingredients list must declare all additives by class name followed by the number in parentheses, or by chemical name. For sulphites in dried apricots, you'll typically see one of the following: preservative (220), sulphur dioxide, sodium metabisulphite (223), or potassium metabisulphite (224). All of these belong to the same family and trigger the same reactions in people who are sensitive.

The "no added" claims on the front of packs deserve scrutiny. "No artificial colours" tells you nothing about sulphites. "Preservative-free" is the phrase to look for, but it isn't regulated with a strict legal definition in the same way the ingredients list is. Smaller packers sometimes write "unsulphured" on the front, which is the most specific claim you can find on a retail shelf.

Bulk bins create another layer of confusion. Even if the loose product looks wholesome, the scoop from the previous customer might have come from a treated batch, or the shop may carry both treated and untreated varieties from different suppliers. If a shop can't tell you the supplier and the additive status, treat the contents as treated by default. Asking the staff member behind the counter — what many Australians would call having a yarn — is worth the minute it takes to clear things up.

Where to Find Sulphite-Free Dried Apricots Across Australia

Finding genuinely unsulphured dried apricots takes more effort than grabbing the first bag off the Woolworths shelf, but it's doable once you know where to look. Health food chains like Go Vita, Healthy Life, and many independent grocers stock at least one preservative-free option, and they're often tucked on the bottom shelf rather than the eye-level display. The trick is to scan the entire dried fruit aisle, not just the apricot stand.

Farmers markets are another reliable source. The Adelaide Showground Farmers' Market, the Melbourne Farmers Markets network, and the Eveleigh Market in Sydney all host small Australian packers who air-dry or sun-dry apricots without sulphites. These are usually seasonal and sell out quickly, so showing up early on a Saturday is a habit worth keeping. Expect darker, slightly chewier pieces than the supermarket standard; the trade-off is a clean ingredients list and a transparent producer.

Once unsulphured apricots are in the kitchen, they lend themselves to both sweet dishes and savoury cooking. Apricots simmer well with sweet squash in Moroccan stews, pair nicely with raisin and rice in pilafs, and add a touch of fruit-driven depth to a healing broth. If you want to make a base broth from kitchen scraps, this healing broth recipe walks through the method step by step. The kernels inside the apricot stones can be saved for flavouring as well, though they should never be eaten raw in quantity.

Storage, Shelf Life, and Cooking

Treated dried apricots last twelve months or longer in a sealed packet because the sulphites protect them from mould and oxidation. Once you switch to a preservative-free product, the shelf life shortens noticeably. Unsulphured apricots are best used within five to six months if kept in a cool pantry, and they last longer in the fridge. Airtight jars at the back of the fridge slow the darkening naturally, and a small sachet of food-grade silica gel helps in humid areas during the wet season up in Queensland and the Top End.

Cooking changes the equation. Sulphite levels drop during boiling and reconstitution, so a cooked apricot is less reactive than a raw one. People with asthma who react strongly to dried fruit can sometimes tolerate a few stewed apricots in a tagine, even when a raw handful triggers symptoms. That said, anyone with a confirmed sulphite allergy should rely on lab-tested avoidance rather than cooking assumptions, because individual thresholds vary widely.

A short checklist makes the search much easier, especially when comparing packed supermarket shelves with the stalls at a busy Saturday market.

Practical Recommendations for Shoppers

• Look for the words "preservative-free" or "unsulphured" on the front of the pack, then confirm by reading the ingredients list for the absence of 220, 223, or 224.
• Prefer dried apricots that are darker, plumper, and slightly chewy rather than bright orange and uniform; the colour difference usually reflects the lack of sulphur treatment.
• Shop at farmers markets such as the Adelaide Showground, Melbourne Farmers Markets, or Eveleigh, where small Australian packers sell seasonal unsulphured batches direct to customers.
• Buy online from Australian growers around Mildura, where the supply chain is short and the producer can answer questions about treatment status over email.
• Store unsulphured apricots in an airtight jar in the fridge to extend shelf life beyond the typical five to six months at room temperature.
• Keep a written note of brands that have caused reactions so you can cross-check them against new packets, especially when shopping at bulk bins where suppliers rotate.
• Cook unsulphured apricots into stews, tagines, and pilafs rather than eating them raw by the handful if you have asthma and react to sulphites, and confirm tolerance with your GP before relying on cooked versions.

If you've had a reaction after eating dried fruit and want tailored guidance, the team behind Allergy Knowledge can point you in the right direction through the https://allergyknowledge.com/contact page, where questions about sulphites, fruit allergies, and label-reading are answered. Bringing a photo of the packet you reacted to, along with the ingredients list, helps the team narrow things down quickly.