Breakfast cooks avoiding added sugar
If you are making eggs, beans or a tomato skillet, a plain tin lets you add your own herbs and spices. Read its ingredients before comparing the sugars shown on the nutrition panel.
Who is this for?
Shoppers comparing label sugars
If the declared sugars figure matters to you, compare it per 100g across similar plain tomato products. The figure includes sugars from the tomatoes; it does not identify added sugar on its own.
People cooking a smaller breakfast
A 227g plain tin, such as Sainsbury's single-serving chopped tomatoes, may fit a smaller recipe better than a 400g tin. Check the pack instructions if you expect to keep leftovers.
What should you check?
Choose the tomato format and pack size that fit the dish, then use the ingredients list and per-100g nutrition panel to make a like-for-like sugar comparison.
| Priority | What to check | Your needs |
|---|---|---|
| Added sugar | Read the ingredients for sugar or other sweetening ingredients. Do not use the ‘of which sugars’ figure alone to decide whether sugar was added: ASDA's herbs variant lists sugar despite declaring 2.9g sugars per 100g, according to ASDA. | I want to season the breakfast tomatoes myself, so I would choose a plain tin after checking its ingredients. |
| Declared sugars | Compare ‘of which sugars’ per 100g across similar plain chopped tomatoes, rather than comparing figures per tin. Marks & Spencer declares 2.5g per 100g for its 400g Italian Tomatoes; the Napolina, ASDA and Tesco plain chopped products declare 3.6g, 3.8g and 4.0g respectively on their cited brand or retailer listings. | When the label number matters to me, I compare the same measure and format without treating a small difference as a verdict on the finished breakfast. |
| Tomato texture | Check whether the tomatoes are chopped, finely chopped or whole peeled. A whole peeled tin needs crushing if the recipe calls for chopped pieces; Mutti describes its Polpa as finely chopped pulp. | For a skillet, I might want visible tomato pieces. For a finer tomato base around eggs or beans, finely chopped pulp is another option. |
| Pack and leftovers | Match the tin size to the recipe and follow its own post-opening instructions. Sainsbury's lists its 227g chopped tomatoes as one serving and says to refrigerate transferred leftovers and use them within two days. | If I am cooking for one, a smaller tin may leave less unused tomato; for a larger dish, a 400g tin may fit better. |
Common buying mistakes
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Confusing tomato sugars with added sugar
A plain tin can declare several grams of sugars per 100g without listing sugar as an ingredient. Conversely, a seasoned tin can list sugar while showing a lower declared sugars figure than another product.
Check the ingredients for added sugar, then compare the nutrition-panel figure per 100g between similar tomato products.
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Assuming every variant has the same ingredients
ASDA's plain chopped tomatoes list tomatoes, concentrated tomato juice and citric acid. Its chopped tomatoes with herbs also list sugar, herbs and flavourings, according to ASDA.
If you want to set the flavour yourself, check the plain variant. For a seasoned tin, read that variant's ingredients and nutrition panel rather than relying on the brand name.
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Opening a tin without a plan for the rest
Post-opening instructions differ: the cited Napolina and Sainsbury's listings specify use within two days, while ASDA's plain chopped tomatoes specify four days.
Consider the amount your breakfast needs. Transfer and refrigerate any leftovers as directed on the particular pack, and follow its stated time limit.
Brand and product-line references
These label and format examples help distinguish products; a brand name alone does not tell you the ingredients or sugars figure of every variant.
Napolina
Napolina's chopped tomatoes offer a chunky texture and are listed in 400g tins and multipacks.
- Sainsbury's listing for the 4 × 400g pack gives tomatoes and citric acid as ingredients, with 3.6g sugars per 100g.
- Its cited instructions say to refrigerate leftovers and use them within two days of opening.
Mutti
Mutti describes Polpa as finely chopped tomato pulp, an option when you prefer a finer texture to standard chopped pieces.
- Mutti's product page lists tomato and salt as ingredients and declares 2.8g sugars per 100g for Polpa.
- Check the nutrition panel on the UK pack you buy before relying on the figure from Mutti's product page.
Tesco
Tesco Italian Chopped Tomatoes are a 400g chopped-tomato option; Tesco also provides brief hob-heating instructions.
- Tesco declares 4.0g sugars and 0.09g salt per 100g for the cited product.
- Check the current pack if ingredients or nutrition values determine your choice.
Sainsbury's
Sainsbury's lists a 227g plain chopped-tomato tin as one serving.
- Its listing gives tomatoes, concentrated tomato juice and citric acid as ingredients, with 3.5g sugars per 100g.
- The smaller tin provides less tomato for a larger recipe; Sainsbury's says to refrigerate transferred leftovers and use them within two days.
Asda
ASDA lists both plain and herb-seasoned 400g chopped tomatoes, making the exact variant important.
- ASDA's plain tin lists tomatoes, concentrated tomato juice and citric acid, and declares 3.8g sugars per 100g.
- ASDA's herbs variant lists sugar as an ingredient; do not assume the two recipes are interchangeable.
M&S
M&S Italian Tomatoes are a 400g plain chopped-tomato option.
- Marks & Spencer lists chopped tomatoes, tomato juice and citric acid, and declares 2.5g sugars per 100g for this product.
- That label figure describes this product, not every M&S tomato variant or the flavour of a prepared dish.
Joybuy tomato options
These Joybuy options include chopped tomatoes for a breakfast base and whole peeled tomatoes you can crush for a different texture. Pack sizes range from a single 400g tin to multipacks, so consider how often you will use them.
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Mutti Finely Chopped Tomatoes 4 × 400g
A finely chopped option when you want a less chunky tomato base for eggs or beans. The four-tin pack is worth considering against how often you cook with tomatoes; check the current pack for ingredients, nutrition and storage instructions.
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Napolina Chopped Tomatoes 4 × 400g
Chopped tomatoes provide pieces for a breakfast skillet, while four 400g tins suit repeated use more readily than a one-off recipe. Sainsbury's listing for this pack declares 3.6g sugars per 100g; check the current pack label and its instructions for opened tins.
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Mutti Peeled Tomatoes 400g
This single 400g tin offers whole peeled tomatoes rather than a chopped base. Crush them if your breakfast recipe calls for smaller pieces, and check the pack's ingredients, nutrition and leftover-storage instructions.
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Laila Canned Chopped Tomatoes 12 × 400g
The chopped format can serve as a tomato base for a breakfast dish, but twelve 400g tins are a substantial quantity for occasional cooking. Check the current label for ingredients, declared sugars per 100g and post-opening instructions.
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Laila Canned Plum Tomatoes 12 × 400g
These whole plum tomatoes can be crushed for a breakfast tomato dish if you do not need a ready-chopped texture. The twelve-tin pack is better matched to repeated cooking than an occasional breakfast; check each tin's current label and storage directions.
Questions about breakfast tomatoes
Are plain tinned tomatoes free of sugar?
No. Plain tomatoes contain naturally occurring sugars: the cited plain chopped-tomato listings from Marks & Spencer, Sainsbury's, Napolina, ASDA and Tesco declare values from 2.5g to 4.0g per 100g. Check ingredients separately if your concern is sugar added during manufacture.
Does a lower sugars figure mean no sugar was added?
No. The nutrition figure does not separate naturally occurring sugars from added sugar. Read the ingredients: ASDA's herbs variant lists sugar even though its declared sugars per 100g are below those of some cited plain tins.
Should I use chopped or finely chopped tomatoes with eggs?
Choose standard chopped tomatoes if you want pieces in the skillet, or finely chopped pulp if you prefer a finer tomato base. Whole peeled tomatoes are another option when you are happy to crush them during preparation.
What should I do with tomatoes left in an opened tin?
Follow that product's pack instructions for transferring, refrigerating and using leftovers. The cited Napolina and Sainsbury's listings specify two days after opening, while ASDA's plain chopped tomatoes specify four days, so do not apply one tin's time limit to another.