Shoppers managing a food allergy
Check the current pack against the specific allergy, including its ingredients and relevant allergen information. A sugar figure does not answer that question.
Who this helps
Households comparing declared sugars
Once a tin meets the household’s allergy requirements, compare sugars per 100g on the nutrition panels of the exact products you are considering.
Cooks choosing their own seasonings
A plain tomato base lets you assess the tin and any garlic, herbs or other additions separately before using them in a sauce, soup or stew.
What to check on the tin
Start with the exact pack’s ingredients and allergen information. Compare nutrition figures only among products that meet those requirements.
| Priority | What to check | Your needs |
|---|---|---|
| Allergy suitability | Read the current pack’s full ingredients and allergen information. Check tomato itself, added ingredients and any relevant precautionary statement against the individual allergy requirements. | I need to assess this particular tin, not rely on its category name or sugar figure. |
| Plain or seasoned | Compare ingredient lists rather than assuming all chopped tomatoes are alike. Sainsbury’s plain chopped tomatoes list tomatoes, concentrated tomato juice and citric acid; a Waitrose & Partners garlic-and-olive-oil version also lists garlic, oil, sugar and flavourings. | I would rather check seasonings separately, or I need to assess every addition in a flavoured tin. |
| Declared sugars | Compare sugars per 100g on the exact packs. Sainsbury’s lists 2.8g for its SO Organic chopped tomatoes and 3.5g for its standard chopped tomatoes; its Napolina 4 × 400g listing gives 3.6g. Check the ingredients separately for added sugar. | After confirming allergy suitability, I want a like-for-like sugar comparison without treating these examples as a claim about every tinned tomato. |
Common shopping mistakes
-
Treating a low sugar figure as an allergy check
The sugar value does not tell you whether tomato, another ingredient or relevant precautionary information fits an individual allergy.
Check the current pack’s ingredients and allergen information first; compare sugars only once those requirements are met.
-
Assuming plain and flavoured tins have the same ingredients
The checked Waitrose & Partners garlic-and-olive-oil tomatoes list additions, including garlic, sugar and flavourings, that are not in the checked plain Sainsbury’s chopped tomatoes.
Assess every ingredient in a flavoured tin, or choose a plain base and check any seasonings you add separately.
-
Relying on an earlier online listing
Tesco Groceries warns that reformulation can change ingredients, nutrition and allergen information.
Read the label on the tin you receive, even if you have bought the product before.
Brand references for specific tomato products
Sainsbury’s
The checked own-label listings include standard and SO Organic chopped tomatoes in 400g tins.
- Sainsbury’s lists 3.5g sugars per 100g for its standard chopped tomatoes and 2.8g for its SO Organic version.
- Those figures describe the specified products, not every Sainsbury’s tomato tin. Check the current pack before use.
Napolina
Napolina offers plain chopped tomatoes as well as garlic, herb and chilli variants.
- Sainsbury’s Napolina Chopped Tomatoes 4 × 400g listing declares 3.6g sugars per 100g and lists tomatoes and citric acid.
- Do not apply the plain product’s ingredient list to Napolina’s flavoured variants.
Mutti
The checked retailer descriptions identify Mutti Polpa as finely chopped tomatoes and a separate Mutti product as whole cherry tomatoes in tomato juice.
- The two formats offer a choice between finely chopped and whole cherry tomatoes for different recipes.
- Check the exact pack’s ingredients, allergen information and nutrition panel rather than assuming the formats have identical contents.
Tinned tomato options on Joybuy
These chopped and whole plum tomato options provide different formats and pack sizes. For food-allergy shopping, assess the current label of any option you consider before comparing its sugars per 100g.
No image available
KTC Chopped Tomatoes 400g
A single tin of chopped tomatoes for a recipe that calls for this format. Check its current ingredients and allergen information against the individual allergy requirements, then use the pack’s per-100g panel if comparing sugars.
No image available
Mutti Finely Chopped Tomatoes 4 × 400g
This four-tin pack provides finely chopped tomatoes rather than whole ones. Check the current pack’s ingredients, including whether salt is listed, and its allergen information before deciding if it fits your requirements.
No image available
Laila Canned Plum Tomatoes 12 × 400g
Choose this format if a recipe calls for whole plum tomatoes rather than chopped tomatoes. The pack contains twelve 400g tins; check the current ingredients and allergen information on the exact product.
No image available
Napolina Chopped Tomatoes 4 × 400g
This four-tin chopped-tomato pack suits recipes needing that format rather than whole tomatoes. Sainsbury’s listing for Napolina Chopped Tomatoes 4 × 400g declares 3.6g sugars per 100g; check the current pack’s nutrition panel, ingredients and allergen information before choosing it.
No image available
Napolina Peeled Plum Tomatoes 4 × 400g
This four-tin pack is a whole peeled plum-tomato option, not a chopped one. Check the exact pack’s ingredients and allergen information first, then its sugars per 100g if that comparison matters to you.
Frequently asked questions
Are tinned tomatoes automatically suitable for someone with a food allergy?
No. Suitability depends on the individual allergy and the exact current pack. Check tomato itself, every listed ingredient and any relevant precautionary information against the person’s allergy requirements.
Does a reduced-sugar description make a tin suitable for food-allergy shopping?
No. Sugar and allergen suitability are separate considerations. Check ingredients and allergen information first; if the product meets those requirements, compare its declared sugars per 100g with other suitable options.
How did the sugars compare on the checked plain chopped tomatoes?
Sainsbury’s listings declare 2.8g sugars per 100g for its SO Organic chopped tomatoes, 3.5g for its standard chopped tomatoes and 3.6g for Napolina Chopped Tomatoes 4 × 400g. These are figures for three specified listings, not an allergy-suitability judgement or a reduced-sugar claim.
Why check a flavoured tin separately from a plain one?
Its ingredients can differ. The checked Waitrose & Partners garlic-and-olive-oil chopped tomatoes list garlic, oil, sugar and flavourings alongside the tomatoes, so assess that product’s complete current label rather than relying on a plain tin’s ingredient list.
How should I store leftover tomatoes from an opened tin?
Follow the instructions on the exact pack. For the two checked Sainsbury’s plain chopped-tomato tins, the retailer advises transferring unused contents to a non-metallic container, refrigerating them and using them within two days; other products may give different directions.