Parents making lunches for children aged 4–10
If tomatoes are the base for pasta or soup, their salt figure is one part of the whole lunch. NHS Healthier Families gives maximum daily salt amounts of 3g for ages 4–6 and 5g for ages 7–10.
Who is this for?
Households adding sauces or salty toppings
A plain tomato base lets you consider the salt in other ingredients separately. NHS Healthier Families advises reducing salty sauces and using herbs and spices instead of salt.
Cooks who want to season the sauce themselves
Several of the checked chopped-tomato products list tomatoes, tomato juice and citric acid. Check the ingredients as well as the nutrition panel: Mutti says its Polpa contains added salt.
What should you check?
Start with a like-for-like salt comparison, then choose a tomato format and pack size that suit the lunches you plan to make.
| Priority | What to check | Your needs |
|---|---|---|
| Salt per 100g | Compare the same per-100g line on each nutrition panel, not different serving sizes. The NHS defines low salt as 0.3g or less per 100g. | I want to compare how much salt each tomato base contributes before adding other ingredients. |
| Ingredients | Check whether salt is named in the ingredients, then read the declared salt value too. Mutti describes Polpa as containing added salt and lists 0.30g per 100g. | For a sauce I can season myself, I would choose a plain tomato base and add herbs or spices for flavour. |
| Format and storage | Match chopped or whole tomatoes to the recipe, and the number of tins to planned meals. Read the particular product’s instructions for storing opened contents. | A single tin may suit one lunch; a multipack makes more sense if I expect to use the tins across several meals. |
Common buying mistakes
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Using “Italian” or “premium” wording to judge salt
The checked products have different declared salt values despite similar descriptions.
Compare salt per 100g on the nutrition panels; origin and packaging wording do not give you that figure.
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Checking ingredients but overlooking the nutrition panel
Mutti says Polpa contains added salt and declares 0.30g salt per 100g. A product without salt named as an ingredient can still declare salt in its nutrition information.
Read both parts of the label when you want a plain base with a lower declared salt figure.
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Counting only the tomatoes
Sauces and other seasonings can add salt to the finished lunch; a lower-salt tin does not describe the whole meal.
Consider the tomato base alongside the sauces and seasonings you plan to add. NHS Healthier Families suggests herbs and spices as alternatives to adding salt.
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Keeping an opened tin without checking its instructions
Joybuy’s Napolina 4 x 400g product information says to move opened contents to a non-metallic container, refrigerate them and use them within two days.
Follow the instructions on the particular pack you open, especially when one tin will cover more than one lunch.
Brand and product references
These figures refer to the named products, not every tin sold under each brand; check the current pack when choosing.
ASDA
ASDA lists standard and Just Essentials chopped tomatoes in 400g tins.
- ASDA Groceries declares 0.01g salt per 100g for each checked product; both list tomatoes, tomato juice and citric acid.
- Compare the current labels if deciding between the two variants.
M&S
M&S Chopped Italian Tomatoes is a plain 400g chopped-tomato product.
- Marks & Spencer lists 0.02g salt per 100g and ingredients of Italian chopped tomatoes, tomato juice and citric acid.
- Check the current product and local availability before planning a lunch around it.
Sainsbury's
Sainsbury's Chopped Tomatoes is a 400g tomatoes-in-juice option.
- Sainsbury's lists 0.07g salt per 100g and 0.14g per half can.
- Confirm current availability and label details when shopping.
Tesco
Tesco Italian Chopped Tomatoes comes in a 4 x 400g multipack.
- Tesco Groceries lists 0.09g salt per 100g and tomato, concentrated tomato juice and citric acid as ingredients.
- Consider whether you will use and store four tins, rather than choosing a multipack solely for its format.
Napolina
Napolina describes its chopped tomatoes as chunky and offers single-tin and multipack formats.
- Napolina lists 0.10g salt per 100g for its chopped tomatoes.
- If minimising salt in the tomato base is the main aim, compare that figure with the other named products rather than relying on texture.
Mutti
Mutti describes Polpa as finely chopped tomato pulp with added salt.
- The fine texture offers a different starting point from chunky chopped tomatoes.
- Mutti declares 0.30g salt per 100g; check whether that figure suits the rest of your recipe.
Tinned tomato options on Joybuy
These options include chopped tomatoes for a ready-chopped base and whole plum tomatoes for recipes where that format works. Pack sizes range from one tin to 12; compare current labels when salt is the deciding factor.
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Laila Canned Chopped Tomatoes 12 x 400g
Twelve 400g tins of chopped tomatoes may suit a series of tomato-based lunches. Check that you have a use for the quantity and compare the current salt figure per 100g.
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Napolina Chopped Tomatoes 4 x 400g
Four 400g tins suit meals that call for chopped tomatoes. Joybuy lists 0.10g salt per 100g for this pack and says to refrigerate opened contents in a non-metallic container and use them within two days; follow the current pack instructions.
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Napolina Chopped Tomatoes 6 x 400g
This pack contains six 400g tins of chopped tomatoes. Match the quantity to planned meals and check the salt per 100g on this variant’s current label.
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Laila Canned Plum Tomatoes 400g
This is one 400g tin of whole plum tomatoes, rather than ready-chopped tomatoes. Choose the format if it suits the recipe, and read the current nutrition panel to compare salt per 100g.
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Laila Canned Plum Tomatoes 12 x 400g
Twelve 400g tins of whole plum tomatoes suit plans that use this format across several meals. Consider the storage space and check the current salt figure per 100g before choosing the pack.
Frequently asked questions
What does “low salt” mean on a tinned tomato label?
The NHS defines low salt for food as 0.3g salt or less per 100g. Compare that per-100g figure across tins rather than comparing serving figures based on different portions.
Which salt figures matter for a school-holiday lunch?
Check the tomato tin’s salt per 100g and consider the other ingredients in the finished lunch. NHS Healthier Families gives maximum daily salt amounts of 3g for children aged 4–6 and 5g for ages 7–10, and advises reducing salty sauces.
If salt is absent from the ingredients, will the nutrition panel say zero?
Not necessarily. ASDA’s checked chopped tomatoes do not list salt as an ingredient but declare 0.01g salt per 100g. Read the nutrition figure for a numerical comparison; Mutti Polpa, by contrast, explicitly contains added salt.
How should I keep tomatoes left over from an opened tin?
Follow the instructions on that product’s pack. Joybuy’s Napolina 4 x 400g product information says to transfer opened contents to a non-metallic container, refrigerate them and use them within two days.