For a pie and mash filling made with one tin, check the drained weight rather than treating the net tin weight as the amount of tuna you will use. A 145g tin of chunks in spring water is one option if you plan to add your own seasoning; compare salt figures on the same drained-weight basis, and check usable quantity before assuming a 160g tin will provide enough for your portions.
If you are making pie and mash for one occasion, a single tin avoids choosing a multipack. Tesco Groceries lists 102g drained tuna in its 145g spring-water tin, showing why the usable quantity matters when planning the filling.
If salt is a deciding factor, compare figures per 100g drained tuna. The spring-water tins listed by Sainsbury's Groceries, Tesco Groceries and ASDA Groceries do not all carry the same salt figure.
If you want a larger single tin or a stated fishing method, compare the exact products rather than assuming a brand-wide feature. Marks & Spencer lists a 160g spring-water tin and describes that product as pole-and-line caught.
Decide how much drained tuna the filling needs, then compare packing liquid and label figures on a like-for-like basis.
| Concern | What to check | Who this matters to |
|---|---|---|
| Usable amount | Check drained weight and the portions you intend to make. Tesco Groceries lists 102g drained tuna in its 145g spring-water tin. | For one pie and mash meal, I want enough tuna for the filling without relying on the weight of the packing liquid. About 50% of consumers put usable quantity first. |
| Salt on the label | Compare salt per 100g drained: Sainsbury's Groceries lists 0.12g for its 145g spring-water tin, while Tesco Groceries and ASDA Groceries each list 0.90g for theirs. | When choosing between similar spring-water tins, I want to check the salt figure before deciding. Salt is the primary concern for about 33% of consumers. |
| Format and sourcing | Check the packing liquid, net and drained weights, and any sourcing statement on the exact tin. Marks & Spencer lists a 160g spring-water product described as pole-and-line caught. | I may want a larger tin or a particular stated fishing method for this meal, even if another label factor also interests me. About 17% of consumers prioritise format or sourcing. |
Net weight includes the packing liquid. Tesco Groceries lists 102g drained tuna for its 145g tin, so the two figures answer different portion-planning questions.
Look for drained weight and decide how much tuna your intended servings require.
Sainsbury's Groceries lists 0.12g salt per 100g drained for its 145g tin; the comparable Tesco Groceries and ASDA Groceries listings each give 0.90g.
Compare figures stated on the same drained-weight basis and check the label on the tin you buy.
The Tesco Groceries and ASDA Groceries product information warns that small bones may remain. Tuna also contains fish, which matters when checking allergens for anyone eating the pie.
Check the exact pack's allergen, bone and leftover-storage information, and inspect the tuna as you prepare the filling.
These details concern the named single tins, not every tuna product sold under each brand.
Tesco Groceries lists a 145g single tin of skipjack tuna chunks in spring water.
Sainsbury's Groceries describes its 145g spring-water skipjack tin as pole-and-line caught.
ASDA Groceries lists a 145g single tin of skipjack tuna chunks in spring water.
Tesco Groceries lists the Princes 145g spring-water chunks tin as easy open.
Marks & Spencer lists a 160g single tin of tuna chunks in spring water.
These single tins offer tuna chunks in spring water, brine or sunflower oil. Choose the packing liquid that suits your pie filling, and check drained weight on the pack when planning portions.
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A single spring-water tin if you plan to season the pie filling yourself. The stated 145g is net weight; check the pack's drained weight when working out portions.
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A 160g net-weight spring-water tin to consider if you want a larger single-tin format. Check drained weight before assuming it will provide the amount of tuna your filling needs, and use the pack's stated basis when comparing nutrition figures.
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A single 145g net-weight tin if brine suits your recipe rather than spring water. Check drained weight for portions and inspect the chunks while preparing them, as the product information warns that bones may remain.
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A single 145g net-weight tin if sunflower oil suits the filling you are making. It is a different packing format from spring-water tuna; check drained weight before deciding how much one tin will contribute.
That depends on your intended portions and the tin's drained weight. Tesco Groceries lists 102g drained tuna in its 145g spring-water tin, so use the drained figure when deciding whether one tin covers your filling.
Choose the packing liquid to suit your recipe rather than treating the three formats as interchangeable. If salt is important to your choice, compare the exact tins' figures on the same per-100g drained basis; even spring-water products can differ.
Follow the storage instructions on the exact tin, including any directions to transfer and refrigerate unused contents and the stated period for using them after opening.