Orange segments for canned fruit: working with SO₂-preserved segments

In jars of fruit in syrup, canned fruit cocktails and ice-cream toppings, orange has to look the part: whole, glossy, well-coloured segments. The catch is that oranges are harvested over a few months, while a cannery runs all year. That is why many producers source their orange segments for canned fruit as a stabilised semi-processed product: segments already peeled and separated, preserved in SO₂ and ready to be desulphited when needed.

Why start from orange segments in SO₂

Sulphur dioxide (E220, an additive regulated by Regulation (EC) No 1333/2008) slows oxidation and fermentation: the segments keep their structure and aroma and can be stored at ambient temperature, with no cold chain. For a cannery this means:

• Working out of season: buy during the citrus campaign and produce to order, without chasing the harvest. Our Calabrian citrus calendar helps plan purchasing.
• Less work in the plant: peeling and segmenting already done, with no peel or albedo to dispose of.
• Consistent raw material: we start from Calabrian Navel oranges, typically seedless, with regular segments that separate cleanly.

From drum to jar: using orange segments for canned fruit

SO₂ segments are an industrial semi-processed product, not ready to eat. First they must be desulphited, usually by repeated washing in water and, if the protocol requires it, a heat step. Segments need gentle handling: too much agitation or heat breaks them up. Then come jar filling, topping up with syrup and heat treatment.

Watch the heat: some orange varieties, Navel included, can develop a bitter note linked to limonin. Check this with trials on your own recipe before scaling up.

Sulphites and labelling: the producer’s responsibility

Under Regulation (EU) No 1169/2011, sulphur dioxide and sulphites are allergens that must be declared on the label at concentrations above 10 mg/kg or 10 mg/l, expressed as SO₂, in the product as ready for consumption. Desulphiting lowers the residue, but the manufacturer of the finished product must measure it by analysing its own batches and decide on labelling and compliance with additive rules accordingly.

Integrity, membrane and colour

• Integrity: showcase jars need whole segments; fruit cocktails, toppings and fillings can also take broken segments. The share of whole segments is agreed in the data sheet.
• Membrane: a segment with its membrane stands up better to processing; without it, it is more delicate but looks cleaner. Choose according to the finished product.
• Colour: assess it after desulphiting and under syrup, not just on the semi-processed product. A colour reference agreed in the data sheet avoids disputes.

When frozen segments are the better choice

If your product must be free from added sulphites, or the orange goes into chilled products such as yogurt and desserts, the alternative is segments frozen at −18 °C: no preservatives and no desulphiting, but a cold chain is needed right up to use. See our article on frozen orange segments for yogurt and desserts.

What to include in your quote request

• finished product and use (fruit in syrup, fruit cocktail, topping);
• whole or broken segments, with or without membrane;
• preferred packaging and net weight per unit;
• annual volumes and collection schedule;
• documents required: data sheet, batch traceability, information on the preserving solution.

To read the parameters you receive, see our guide to technical specifications of semi-processed products.

Frequently asked questions

Can SO₂ segments go straight into the jar?

No. They must always be desulphited before use; the residual SO₂ in the finished product must then be checked by the producer through analysis.

How long do they keep?

In closed, intact containers they keep for months, which is what makes out-of-season production possible. The indicative shelf life is in the data sheet.

How are they packed?

The SO₂ semi-processed product travels in closed food-grade containers such as drums; format and net weight are agreed according to the needs of your line.