For one person on Pancake Day, a 400g tin labelled as two servings works if you plan to eat both servings or can store the remainder as the label directs. Choose by flavour and ingredients as well as the salt in the amount you will actually eat: the Tesco Groceries and Sainsbury’s labels for the three soups compared here show two servings per tin, but different salt figures and storage instructions.
A 400g tin can cover two meals if you are willing to store a remainder. Tesco Vegetable Soup and Sainsbury’s Vegetable Soup are both labelled as two servings, but their instructions for using soup after opening differ.
A vegetarian label does not answer every dietary question. Tesco Vegetable Soup is labelled suitable for vegetarians; if you avoid particular ingredients, read the current tin rather than relying on the flavour name. Tesco Groceries lists milk ingredients in Heinz Cream of Tomato.
If you expect to finish a 400g tin, compare the salt across both labelled servings. Tesco Groceries states 1.1g salt per half-tin of Heinz Cream of Tomato and 1.06g per half-tin of Tesco Vegetable Soup; Sainsbury’s states 0.89g per serving of its Vegetable Soup.
Decide how much soup you will eat, then check the label for the ingredients, nutrition and instructions that apply to that portion.
| Priority | What to check | Your needs |
|---|---|---|
| Portion and leftovers | Check the stated servings per tin. If saving some, follow that product’s opened-tin storage instructions. | I might want soup for one meal without eating the whole 400g tin, so I need a workable plan for the remainder. |
| Salt for the amount eaten | Check whether nutrition is given per 100g or per serving. For a tin labelled as two equal servings, count both only if you will eat the whole tin. | If I finish the tin, I want to compare its whole-tin salt rather than mistake a half-tin figure for my meal. |
| Ingredients | Read the current ingredients and allergen information. Do not use a vegetarian description as a substitute for an allergen check. | Milk or another ingredient may rule out a flavour I would otherwise choose. |
| Preparation | Check the heating method and container instructions for the exact soup. Use a suitable bowl if its directions allow microwave heating. | When I need a quick meal, the instructions must fit the equipment I have available. |
The compared 400g tins are labelled as two servings. Tesco Groceries gives 1.1g salt per half-tin of Heinz Cream of Tomato, which is 2.2g if you eat both halves.
Use the nutrition figures for the amount you intend to eat, whether that is half the tin or all of it.
A soup can meet a vegetarian preference and still contain an ingredient you avoid. Tesco Groceries lists milk ingredients in Heinz Cream of Tomato.
Read the ingredients and allergen information on the current tin before preparing it.
The stated windows differ: Sainsbury’s Vegetable Soup says to use refrigerated leftovers within two days, while Tesco Vegetable Soup says to consume them within four days.
Check the instructions on the tin you bought and follow its directions for transferring and refrigerating the remainder.
Salt figures need to be read alongside serving size. In its 2026 analysis of 481 chilled and ambient soups, Action on Salt reported that 23% exceeded the voluntary maximum salt target; that is a finding about products analysed, not shoppers’ preferences.
Compare the current labels using the quantity you expect to eat, rather than assuming soups with similar names have similar salt figures.
These examples illustrate differences between specific 400g soups; they do not describe every product from each brand.
Heinz Cream of Tomato is a 400g tomato soup labelled with half-tin servings.
Tesco Vegetable Soup is a 400g option labelled suitable for vegetarians and divided into half-tin servings.
The referenced 400g soups include Vegetable Soup and a separate Chunky Chicken & Vegetable Soup.
These 400g tinned soups offer different flavours for a one-person meal. Check each tin’s serving declaration if you want either a single portion or soup to save for later.
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A lobster bisque to consider if you plan to eat soup on your own. Check the serving and salt declarations for the amount you intend to eat, and check the current label for crustaceans, milk, sulphites and celery.
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A mushroom soup to consider if you are willing to split a 400g tin labelled as two servings. Follow its opened-soup storage instructions if you keep half, and check the current label for milk and wheat.
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A bean soup if you would rather decide how much of the 400g tin to serve. Check its serving and heating instructions for your meal, follow the directions for storing any remainder, and check the label if celery is unsuitable for you.
Not for the three labelled examples compared here. Tesco Groceries lists two half-tin servings for Tesco Vegetable Soup and Heinz Cream of Tomato, and Sainsbury’s lists two servings for its Vegetable Soup. If you eat the whole tin, account for both servings; if you save some, follow that tin’s storage instructions.
Sainsbury’s Vegetable Soup has 1.78g salt across its two labelled servings, calculated from Sainsbury’s figure of 0.89g per serving. The equivalent calculations from Tesco Groceries labels are 2.12g for Tesco Vegetable Soup and 2.2g for Heinz Cream of Tomato. These whole-tin figures apply only if you eat both servings; they are not serving recommendations.
Empty it into a suitable bowl if the soup’s instructions allow microwave heating; do not put the metal tin in the microwave. Check the directions on the product you bought for heating and stirring.
Follow the exact product’s storage instructions. Sainsbury’s says to use its refrigerated Vegetable Soup within two days, while Tesco Groceries says to consume Tesco Vegetable Soup within four days after opening; those windows are not interchangeable.
Read the ingredients and allergen information on the current tin, even if you have bought that flavour before. Tesco Groceries lists milk ingredients in Heinz Cream of Tomato, while Sainsbury’s gives a manufacturing-related egg-allergy warning for its separate Chunky Chicken & Vegetable Soup.