Who is choosing?

Hosts making several tuna dishes

Sandwiches, jacket potatoes, pasta salad and dips can call for different amounts of tuna. Plan the portions, then compare the drained quantity in each pack so opened tins are likely to be used.

Hosts matching tuna to a recipe

Choose the packing liquid and texture with the finished dish in mind. Spring water, brine and oil are not interchangeable in every filling; read the exact tin’s ingredients and nutrition panel when those details matter to you.

Shoppers checking labels and sourcing

For a shared buffet, check fish allergen information, possible-bones warnings and instructions for unused tuna. If certified sourcing is a priority, look for the MSC mark on the product you choose.

What matters when buying?

For a Boxing Day buffet, settle the quantity you will use and the dish you are making before choosing between pack formats and packing liquids.

Concern What to check Who this matters to
Usable quantity Compare drained weight and pack size with the portions you plan to make. If I am making several fillings, I need enough drained tuna without opening more tins than I can use. About 42% of consumers put usable quantity first.
Recipe fit Check the packing liquid and whether chunks, flakes or a ready-drained format suit the dish. For a pasta salad or sandwich filling, I want the tuna’s liquid and texture to work with the other ingredients. Recipe fit comes first for about 33% of consumers.
Labels and leftovers Read the fish allergen and storage instructions; check the exact tin for an MSC mark if certification matters. When serving guests or keeping unused tuna, I need clear product instructions and any sourcing claim I rely on to appear on the tin. About 25% of consumers make those checks their primary concern.

What should you avoid overlooking?

  • Counting tins instead of usable tuna

    A four-pack and a three-pack can contain different tin sizes and different drained quantities. The number of tins alone does not tell you how much tuna will go into your dishes.

    Check drained weight alongside pack size, then choose an amount your buffet is likely to use.

  • Treating every packing liquid alike

    The nutrition panels for Princes tuna in sunflower oil and Asda tuna in spring water list 9.5g and 1.0g fat respectively per 100g drained. They are different products, so check the exact tin rather than applying either figure to all oil- or water-packed tuna.

    Choose the liquid for your recipe and read the tin’s nutrition panel, including its stated measurement basis.

  • Applying a sourcing claim to every tin

    The Marine Stewardship Council reported in 2026 that Tesco and Sainsbury’s had reached MSC-labelled status across their own-brand tuna ranges. That does not establish the certification of a third-party product sold by either retailer.

    If MSC certification is part of your decision, check for its mark on the exact product.

  • Forgetting the opened-tin instructions

    Some product labels direct shoppers to transfer unused tuna, refrigerate it and use it within two days. Food Standards Scotland advises checking each food label for its instructions after opening.

    Plan portions before opening tins, then follow the storage directions on the pack you use.

Brands to consider

Tesco

Tesco’s own-label range includes spring-water tuna in a 4 x 145g format, a pack size to consider when preparing several dishes.

  • The Marine Stewardship Council reported in 2026 that Tesco had achieved MSC-labelled status across its own-brand tuna range.
  • Check the mark and drained quantity on the exact pack; an own-brand range statement does not describe every tuna product Tesco sells.

Sainsbury’s

Sainsbury’s own-label tuna is a route for shoppers who want to examine a supermarket’s own-brand product labels.

  • The Marine Stewardship Council reported in 2026 that its own-brand tuna range had achieved MSC-labelled status.
  • That range-wide statement does not apply automatically to other brands sold by Sainsbury’s; inspect the selected tin.

Asda

Asda product listings include a 4 x 145g brine pack and a smaller 3 x 80g spring-water pack.

  • These formats give buffet hosts different quantities and packing liquids to assess against their recipes.
  • The listings describe different products. Check each pack’s drained weight, fish allergen information and possible-bones warning.

Princes

Princes offers tuna chunks in brine and sunflower oil, as well as sandwich tuna and a ready-drained range.

  • Its chunk, mixed chunk-and-flake and ready-drained formats give shoppers texture and preparation choices for buffet dishes.
  • The packing liquid and nutrition panel vary by product; choose the particular format your recipe calls for.

John West

John West offers brine and spring-water tuna, including a listed 125g MSC-labelled spring-water tin with 102g drained weight.

  • The MSC mark on that specific spring-water product provides a product-level certification check.
  • Drained weight, certification and pack format can differ across John West products; do not transfer one tin’s details to another.

M&S

M&S lists spring-water tuna in a 160g single tin and a 640g four-pack.

  • M&S describes these products as pole-and-line caught and sourced under its Forever Fish policy.
  • Those are M&S sourcing statements for the specified products. Check the selected pack’s label and quantity for your buffet.

Tuna packs on Joybuy

These John West and Princes multipacks offer spring-water, brine and sunflower-oil options for buffet dishes. Compare each pack’s quantity and instructions with what you plan to prepare.

John West Tuna Chunks in Sunflower Oil, four 125g tins

John West Tuna Chunks in Sunflower Oil 4 x 125g

Consider this four-tin pack when the recipe calls for oil-packed tuna across several servings. Check the drained quantity for portion planning; the product information identifies fish as an allergen and warns that bones may remain.

View on Joybuy
John West Tuna Chunks in Springwater, four 125g tins

John West Tuna Chunks in Springwater 4 x 125g

This four-tin spring-water pack is an option for salads or sandwich fillings to which you plan to add other ingredients. Check its drained quantity against your portions and follow the pack’s refrigeration instructions for unused tuna.

View on Joybuy
Princes Tuna Chunks in Brine, four 145g tins

Princes Tuna Chunks in Brine 4 x 145g

For several brine-packed buffet fillings, this pack contains four 145g tins. Check the drained weight before deciding how many portions it will make, and read the exact pack’s nutrition basis and fish allergen information.

View on Joybuy
John West No Drain Tuna Chunks in Springwater, three 100g tins

John West No Drain Tuna Chunks in Springwater 3 x 100g

The three 100g tins offer a smaller pack format for spring-water tuna dishes. No Drain is part of this product’s name, but the description discusses both draining and using tuna straight from the tin; check the specific pack instructions before relying on no-drain use.

View on Joybuy
Princes Tuna Chunks in Sunflower Oil, four 145g tins

Princes Tuna Chunks in Sunflower Oil 4 x 145g

Choose this four-tin format if sunflower oil fits several planned sandwiches, salads or pasta dishes. Check its drained quantity for portion planning and the exact pack label before comparing nutrition with other tuna.

View on Joybuy

Common questions

How can I compare tuna pack sizes for a buffet?

Compare the packs’ drained quantities, then estimate how much tuna your planned dishes will use. Tin count or net weight alone may not describe the amount that goes into the finished food.

Should I choose spring water, brine or sunflower oil?

Choose the packing liquid that fits your recipe: spring water or brine if you will add your own dressing, or sunflower oil if you want that oil in the dish. Check the exact product’s fat and salt figures rather than assuming all tins packed in the same liquid have identical nutrition.

What should I do with tuna left after opening a tin?

Follow that tin’s storage directions. Marks & Spencer’s listed spring-water product instructs shoppers to move unused contents to a non-metallic container, refrigerate them and eat them within two days; Food Standards Scotland likewise advises checking the label for instructions after opening.

Can I serve tinned tuna to someone with a fish allergy?

Tuna contains fish, which the listed product labels identify as an allergen. If guests have allergies, identify tuna-containing dishes clearly and check every ingredient’s current label when preparing the buffet.

How do I check whether a tuna tin is MSC certified?

Look for the MSC mark on the exact tin you intend to buy. A retailer’s own-brand sourcing statement does not establish whether a different brand or product on its shelves carries that certification.