Pie-filling planners
If your recipe calls for several tins, the drained weight tells you how much tuna will go into the filling. Check that figure for the whole pack before deciding how many packs you need.
Who is buying for pie and mash?
Buyers watching the recipe’s salt level
If the mash, sauce or other filling ingredients are already seasoned, compare the salt figure on the exact tuna variant. The spring-water packs listed by Sainsbury's, Tesco Groceries and other retailers do not all have the same salt content.
Convenience and sourcing shoppers
If opening several tins or choosing a particular sourcing statement matters to you, check those features on the specific pack. Also make sure its tin count fits the meal you have planned.
What matters when choosing a pack?
Work out the tuna quantity your pie needs, then compare the liquid and label details of packs that provide it.
| Concern | What to check | Who this matters to |
|---|---|---|
| Usable tuna quantity | Check the tin count and drained weight per tin or pack; the nominal weight includes packing liquid. | If I am making one large pie, I need enough tuna in the filling without mistaking liquid for fish. About 42% of consumers put usable quantity first. |
| Liquid and salt | Read the exact variant’s ingredients and compare its salt per 100g drained. | When the sauce and mash are already seasoned, I want to choose the tuna’s liquid and salt level deliberately. Roughly 33% of consumers make recipe control their primary concern. |
| Opening and sourcing | Check the can-opening format and any sourcing statement on the specific product; confirm the pack contains enough tins. | If I will open several cans, ease of opening matters, or I may want a particular stated sourcing standard. For about 25% of consumers, these features take priority. |
What should you avoid overlooking?
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Using nominal weight to plan the filling
The liquid is included in a tin’s nominal weight. Tesco Groceries lists its 4 × 145g spring-water pack as 4 × 102g drained, giving 408g of drained tuna across the pack.
Start with your recipe’s tuna requirement, then use the pack’s drained-weight statement to decide how many tins to open.
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Treating water, brine and oil as interchangeable
The liquid and nutrition figures depend on the exact variant. Sainsbury's lists 0.12g salt per 100g drained for its spring-water four-pack and 0.42g for its brine four-pack.
Read the chosen tin’s ingredients and nutrition panel before deciding how to season the finished pie.
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Overlooking instructions for an opened tin
Storage instructions differ between the products described by Tesco Groceries, Sainsbury's and the other listed brands, so a single leftover-use period will not suit every tin.
Open only what the pie needs where possible. Transfer leftovers to a non-metallic container, refrigerate them and follow the time stated on your tin.
Brands to consider
Tesco
Tesco’s own-label spring-water four-pack is one format to consider when planning a multi-tin filling.
- Tesco Groceries lists 4 × 102g drained tuna in its 4 × 145g pack and states that the fishery is MSC-certified.
- Its listed salt figure is 0.90g per 100g drained; check the label if the rest of the recipe is already seasoned.
Sainsbury's
Sainsbury's lists four-tin own-label choices in spring water and brine.
- Its spring-water pack lists 0.12g salt per 100g drained and carries pole-and-line and MSC sourcing statements.
- The brine pack lists 0.42g salt per 100g drained. Choose by the precise variant rather than the brand name alone.
Princes
Princes offers a 4 × 145g spring-water format for shoppers who want a branded four-pack.
- The Princes listing at Tesco Groceries states that this product contains no artificial preservatives, colours or flavours.
- That spring-water pack lists 0.85g salt per 100g drained; compare the exact variant with your recipe’s other ingredients.
John West
John West’s 4 × 125g spring-water pack is an option when its ECOTWIST opening format matters.
- The Sainsbury's listing describes an aluminium SmartStrip for twist opening.
- The listed salt figure is 0.8g per 100g drained; the opening feature does not tell you whether its formulation suits your pie.
M&S
M&S has a 160g individual spring-water tin for shoppers considering its stated sourcing approach.
- Marks & Spencer describes this product as pole-and-line caught and sourced under its Forever Fish policy.
- This individual tin is not a four-tin multipack; check how many tins your filling requires.
Tuna multipacks on Joybuy
These multipacks offer spring-water, brine and sunflower-oil choices for a multi-tin pie filling, plus a larger brine bundle to consider for repeated meals. Check the drained quantity and exact variant against your recipe.
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John West Tuna Chunks in Springwater 4 × 125g
Consider this four-tin spring-water pack if you want the ECOTWIST opening format for a multi-tin filling. The matching John West product information gives 102g drained weight per tin; check the tuna for any remaining bones while preparing it.
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John West Tuna Chunks in Brine 4 × 125g
This four-tin brine pack is worth considering if brine suits your filling. Check its salt figure alongside the sauce and mash, and use the label’s drained weight to plan how much tuna the pie will contain; small bones may remain.
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Princes Tuna Chunks in Brine 4 × 145g
Choose this four-tin format if its brine formulation works for the pie you are making. Check the pack’s drained weight for filling quantity and its salt figure before seasoning; the product information also cautions that small bones may remain.
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Princes Tuna Chunks in Brine 4 × 145g × 12 packs
This stated bundle of twelve four-tin brine packs is more relevant to repeated meals or a large gathering than to buying only for one pie. Confirm the bundle quantity and drained weight on the product label, and consider whether you have room to store the tins; small bones may remain.
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John West Tuna Chunks in Sunflower Oil 4 × 125g
This four-tin pack is an option if sunflower oil suits your planned filling rather than spring water or brine. Check its drained weight for the amount of tuna you need and inspect the fish for any remaining bones as you mix the pie.
Questions about tuna for pie
How many tins of tuna do I need for pie and mash?
Use the drained tuna weight required by your recipe to decide. Tesco Groceries states that its 4 × 145g spring-water pack contains 4 × 102g drained, or 408g across the pack; check the corresponding figure on whichever product you choose.
Should I use tuna in spring water or brine for the pie?
Choose the variant that suits the seasoning in your filling rather than assuming the two have the same salt level. Sainsbury's lists 0.12g salt per 100g drained for its spring-water four-pack and 0.42g for its brine four-pack; check your chosen tin before adding salt elsewhere in the recipe.
What should I do with tuna left after opening a tin?
Transfer unused tuna to a non-metallic container and refrigerate it, then follow the use-within period on that product’s label. The product instructions described for these packs differ, so check the tin you opened rather than applying another brand’s timeframe.
Are there any label checks before serving tuna pie?
Check the fish allergen declaration and look through the tuna for bones as you mix the filling. The John West and M&S product information cautions that bones may remain.