Who is buying in bulk?

Regular batch cooks reducing salt

If chopped tomatoes go into sauces, soups or stews every week, the salt declaration on a frequently used tin is worth comparing per 100g.

Households stocking up for regular meals

Several 400g tins may suit a regular cooking routine. Check how many tins the pack contains and compare the nutrition label on the exact product you intend to store.

Cooks who use part of a tin

If a recipe needs less than one tin, the product’s refrigeration and use-within instructions matter when planning what to cook next.

What should you check?

Start with the salt declaration on the exact product, then check whether its pack quantity and storage instructions fit how you cook.

Priority What to check Your needs
Salt Compare salt per 100g on the exact tin or multipack. ASDA Groceries lists 0.01g per 100g for ASDA Chopped Tomatoes 400g; Napolina lists 0.10g per 100g for its chopped-tomato range. I use tomatoes in several meals and want to compare their labelled salt figures on the same basis.
Pack quantity Count the tins and check their individual size. Tesco Groceries and Sainsbury’s Groceries each list an own-label chopped-tomato pack containing four 400g tins; Napolina also lists a 4 x 400g format. A multipack suits my cupboard if I expect to use all its tins in regular cooking.
Opened tins Follow the product’s container, refrigeration and use-within instructions. ASDA Groceries states four days after opening for its chopped tomatoes; Marks & Spencer states three days for its chopped Italian tomatoes. When I use only part of a tin, I need a plan for the remainder that follows that product’s label.
Date labels Identify the date type and follow the tin’s storage instructions. GOV.UK distinguishes best-before dates, which concern quality, from use-by dates, which concern safety. I keep several tins at home and want to rotate them in date order.

Mistakes to avoid

  • Assuming a brand or pack format tells you the salt content

    ASDA Groceries declares 0.01g salt per 100g for its 400g chopped tomatoes, whereas Napolina declares 0.10g per 100g for its chopped-tomato range. The name and format alone do not establish which label has the lower figure.

    Compare the per-100g nutrition declaration on the exact product before adding several tins to your basket.

  • Planning cupboard space but not opened-tin use

    Unopened tins and leftover contents have different storage instructions. ASDA Groceries says to transfer unused contents to a covered, non-metallic container, refrigerate and use within four days; Marks & Spencer specifies refrigeration and use within three days for its chopped Italian tomatoes.

    Plan when you will use the remainder of an opened tin, and follow its own label rather than another product’s timeframe.

  • Treating best-before and use-by as the same date

    GOV.UK explains that best-before dates concern quality, while use-by dates concern safety, and identifies canned tomatoes as a food that commonly carries a best-before date.

    Read the date type on each tin, store it as directed and put older stock where you will use it first.

Brand and retailer references

ASDA

ASDA Groceries lists a single 400g tin of chopped tomatoes with a declared salt figure.

  • ASDA Chopped Tomatoes 400g lists 0.01g salt per 100g.
  • For a larger order, work out how many individual tins you want and check the label of those tins.

M&S Eat Well

Marks & Spencer lists chopped Italian tomatoes with product-specific instructions for leftovers.

  • The product page instructs shoppers to refrigerate opened contents in a non-metallic container and eat them within three days.
  • Compare the exact tin’s per-100g nutrition panel when choosing it for a lower-salt order.

Napolina

Napolina lists chopped tomatoes in both individual tins and a four-pack.

  • The range lists 400g singles and a 4 x 400g format.
  • Napolina declares 0.10g salt per 100g for the chopped-tomato range; compare that figure with other exact products if salt is your priority.

Tesco

Tesco Groceries lists its Italian Chopped Tomatoes in a four-pack.

  • The listed pack contains four 400g tins.
  • Check the salt declaration on the exact pack before choosing it for a lower-salt order.

Sainsbury’s

Sainsbury’s Groceries lists its Italian Chopped Tomatoes in a four-pack.

  • The listed pack contains four 400g tins.
  • Check the salt declaration on the exact pack before choosing it for a lower-salt order.

Joybuy product options

This 12-tin pack is an option for stocking up on chopped tomatoes. Check the salt declaration on the exact pack when deciding whether it fits a lower-salt shop.

Laila Canned Chopped Tomatoes 12 x 400g pack

Laila Canned Chopped Tomatoes 12 x 400g

The 12 x 400g format suits a cupboard stock-up if you expect to use the tins; compare the salt declaration and opened-tin instructions on the exact pack before ordering.

View on Joybuy

Common questions

Does “Italian” mean chopped tomatoes contain less salt?

No: origin wording does not tell you the declared salt amount. Compare the exact products per 100g; ASDA Groceries lists 0.01g per 100g for its 400g chopped tomatoes, while Napolina lists 0.10g per 100g for its chopped-tomato range.

How should I store tomatoes left in an opened tin?

Follow that product’s label. ASDA Groceries instructs shoppers to transfer its unused chopped tomatoes to a covered, non-metallic container, refrigerate and use within four days; Marks & Spencer specifies a non-metallic container, refrigeration and three days for its chopped Italian tomatoes.

What does a best-before date mean on tinned tomatoes?

A best-before date concerns quality, rather than the use-by safety rule, according to GOV.UK, which identifies canned tomatoes as a food that commonly carries a best-before date. Check the date type on the tin and follow its storage instructions.