Who is each portion size for?

Students with access to a campus microwave

A larger tin can work for a warm lunch if you have a suitable bowl for heating and somewhere to refrigerate the portion you do not eat.

Students needing one lunch-sized tin

A 200g single-serve tin avoids an opened second portion. Waitrose & Partners lists Heinz No Added Sugar in this size; its salt per 100g still needs comparing with larger tins.

Students comparing salt declarations

Check both salt per 100g and salt in the amount you expect to eat. A reduced-salt claim describes a comparison with another recipe, not an identical salt level across brands.

What should you check before buying?

Start with the nutrition panel, then check the portion and what you can do with the tin once opened.

Priority What to check Your needs
Salt Compare salt per 100g on the nutrition panels, then check the figure for your portion. Tesco Groceries lists 0.29g per 100g and 0.60g per 210g half-can for its Reduced Sugar and Salt beans. I want to compare different tin sizes on the same basis, then see how much salt is in the lunch I will actually eat.
Portion size Check the weight of the tin and its stated serving size. Waitrose & Partners lists a 200g Heinz No Added Sugar single-serve tin with 0.80g salt per can. A tin I can finish at lunch is useful when I have nowhere to keep an opened portion chilled.
Preparation Read the heating directions and use a microwave-safe, non-metallic container if microwaving. Check how you will keep any unused beans chilled. Between lectures, I need a container and enough time to prepare lunch without heating food in its metal tin.
Ingredients Read the label on the tin you buy, including its ingredients and allergen statement. Marks & Spencer lists its No Added Sugar Baked Beans as unsuitable for people with milk or egg allergy. If an ingredient matters to me, I need to check this particular recipe rather than rely on wording such as “no added sugar”.

What can make a lecture-day lunch awkward?

  • Assuming every “reduced salt” tin has the same salt level

    Reduction claims compare a product with another recipe. Tesco Groceries lists 0.29g salt per 100g for its Reduced Sugar and Salt beans; Waitrose & Partners lists 0.40g per 100g for Heinz No Added Sugar.

    Use the per-100g figures for comparison, then check the salt in the portion you plan to eat.

  • Opening a large tin without a plan for the remainder

    A 420g tin may leave an opened portion after lunch. Without suitable chilled storage, that portion may go unused.

    Choose a tin you can finish, or bring a suitable container and make arrangements to refrigerate the remainder promptly. Food Standards Agency guidance says cooked food should be placed in the fridge within one to two hours.

    An unused portion also means carrying and storing food after lunch, rather than just disposing of an empty tin.

  • Putting the metal tin in a microwave

    Beans need to be transferred out of the tin for microwave heating.

    Use a microwave-safe, non-metallic bowl and follow the heating directions on the product label.

  • Using a front-of-pack phrase as an allergen check

    “No added sugar” does not describe allergen suitability. Marks & Spencer states that its No Added Sugar Baked Beans are unsuitable for people with milk or egg allergy.

    If you have an allergy or intolerance, check the ingredient and allergen information on the tin you are buying.

Which brand examples help with comparison?

These details concern the named products, rather than every baked bean tin from each brand.

Tesco

Tesco Reduced Sugar and Salt Baked Beans come in a 420g tin.

  • Tesco Groceries lists 0.29g salt per 100g and 0.60g per 210g half-can.
  • A half-can lunch leaves a second portion to store.

Waitrose Essential

Essential Reduced Salt & Sugar Baked Beans offer another own-label tin to compare.

  • Waitrose & Partners describes this product as containing 30% less salt than regular Waitrose Essential baked beans.
  • That relative claim does not replace checking the salt declaration per 100g on the tin.

Heinz

Heinz No Added Sugar is listed by Waitrose & Partners in a 200g single-serve tin.

  • The listed can contains 0.80g salt, with 0.40g per 100g, so the whole-tin portion is straightforward to assess.
  • Its salt per 100g is higher than the 0.29g listed by Tesco Groceries for Tesco Reduced Sugar and Salt beans.

M&S

M&S No Added Sugar Baked Beans are a separate option when checking ingredients as well as salt.

  • Marks & Spencer lists 0.43g salt per 100g.
  • Marks & Spencer says this product is unsuitable for people with milk or egg allergy.

Joybuy product options

The Joybuy option here is a multipack of reduced sugar and salt baked beans. Its 410g tins make portion size and storage worth checking for a lunch between lectures.

Branston Reduced Sugar & Salt Baked Beans, four 410g tins

Branston Reduced Sugar & Salt Baked Beans, 4 x 410g

For a lecture-day lunch, consider whether you can finish a 410g tin or keep an opened portion chilled. This pack contains four 410g tins; check the label for the salt figure per 100g and the storage directions before choosing it.

View on Joybuy

Questions about choosing and preparing beans

How do I compare the salt in tins of different sizes?

Compare salt per 100g first, then check the amount in the portion you will eat. Tesco Groceries lists 0.29g per 100g and 0.60g per half-can for its Reduced Sugar and Salt beans. Waitrose & Partners lists 0.40g per 100g and 0.80g per 200g can for Heinz No Added Sugar.

Is a 420g tin practical between lectures?

It can work if you want a larger portion or can keep any remainder chilled. If you cannot store an opened portion, a tin you can finish at lunch, such as the 200g Heinz No Added Sugar can listed by Waitrose & Partners, may be simpler.

Can I microwave baked beans in the tin?

No. Transfer the beans to a microwave-safe, non-metallic container and follow the heating directions on the tin.

Should I check the tin if the online description looks suitable?

Yes. Read the nutrition, ingredient and allergen information on the tin you buy. This matters particularly for allergies: Marks & Spencer says its No Added Sugar Baked Beans are unsuitable for people with milk or egg allergy.