Who this choice matters to

Protein-led meal planners

If custard follows a meal planned around protein, its contribution is worth checking separately. Ambrosia, Tesco and Asda list 2.4–2.9g protein per 100g for the compared ready-to-serve tins.

Salt-conscious label comparers

If salt is your deciding factor, compare the same per-100g line across packs. The compared Ambrosia, Tesco and Asda tins declare 0.10–0.12g salt per 100g; their labels do not establish a reduced-salt claim.

Convenience-focused dessert buyers

A ready-to-serve tin avoids preparing custard from powder. Check how much you expect to serve and the opened-pack instructions: the compared Ambrosia and Tesco products specify refrigeration and use within three days of opening.

What to check when buying

For a ready-to-serve tin alongside a protein-led meal, compare nutrition per 100g before considering the amount you will actually serve.

Concern What to check Who this matters to
Protein contribution Read protein per 100g and calculate it for your intended portion; do not treat the dairy ingredient alone as evidence of a high-protein product. If custard follows a protein-led meal, I need to know what it contributes rather than relying on its name or ingredients. About 46% of consumers put that protein contribution first.
Salt and label wording Compare salt per 100g, then consider your portion; check any reduced-salt claim against the current pack wording. When choosing between tins, I want the salt figures on a common basis instead of assuming “light” means reduced salt. Salt comparison is the primary need for about 36% of consumers.
Serving and storage Check the pack format, serving size and instructions for storing custard after opening. If I want custard ready to serve, I also need a pack size I can use within its opened-pack instructions. About 18% of consumers prioritise that practicality.

Common buying mistakes

  • Assuming dairy custard is high in protein

    The compared ready-to-serve tins list 2.4–2.9g protein per 100g. Picking the highest figure among them does not make custard the main protein component of a meal.

    Compare protein for the portion you plan to eat, and consider the custard separately from the rest of the meal.

  • Reading “light” as “reduced salt”

    Ambrosia describes its Light custard in terms of less sugar and fat than standard Ambrosia Devon Custard. Its salt figure is a separate label detail.

    Read salt per 100g directly, then consider sugar, fat and energy according to what else matters to you.

  • Comparing unlike serving sizes

    A portion figure can be misleading when one pack uses a 125g serving and another uses a half-can serving of 200g.

    Start with the per-100g figures, then work out the amount for the portion you intend to serve.

  • Treating custard powder as a ready-to-serve tin

    Bird's Original is a powder for home preparation, not a ready-to-serve tinned custard. The finished dish depends on the recipe and ingredients used.

    Choose powder if you want to prepare the custard yourself; compare the prepared dish, rather than the powder alone, with a ready-to-serve product.

Relevant brands for reference

Ambrosia

Ready-to-serve custard with Light and Deluxe 400g cans among the relevant products.

  • Ambrosia lists 0.12g salt and 2.9g protein per 100g for Light, and 0.11g salt and 2.8g protein per 100g for Deluxe.
  • Ambrosia's “Light” description concerns sugar and fat relative to its standard Devon Custard; check salt separately.

Tesco

Own-label Ready To Serve Custard in a 400g tin.

  • Tesco lists 0.10g salt and 2.4g protein per 100g.
  • Its protein figure is a label comparison point, not a reason to treat the custard as the meal's main protein component.

Asda

Own-label Light Custard in a 400g can.

  • Asda lists 0.10g salt, 2.6g protein and 76kcal per 100g.
  • The “Light” name does not, by itself, establish a reduced-salt claim.

Sainsbury's

Own-label ready-to-eat custard relevant to a broader pack comparison; the referenced 1kg product is not established here as a tin.

  • Sainsbury's lists 0.15g salt and 2.5g protein per 100g for its 1kg Ready To Eat Custard.
  • Check the pack format if a tin is essential to your purchase.

M&S

Silky Smooth Custard is a 400g ready-to-serve product made with whole milk, according to M&S.

  • Check its current salt and protein label before comparing it with the tins above.

Bird's

Original Custard Powder is an option for home preparation rather than a ready-to-serve tin.

  • Preparing it yourself lets you choose the recipe ingredients.
  • The finished custard's nutrition depends on that recipe, so powder-pack figures are not directly comparable with ready-to-serve custard.

A ready-to-serve tin on Joybuy

This 400g Ambrosia custard is a ready-to-serve tin to consider when comparing salt per 100g for a dessert alongside a protein-led meal.

Ambrosia Low Fat Custard 400g

Ambrosia Low Fat Custard 400g

Consider this ready-to-serve tin as a dessert accompaniment, while assessing its protein contribution separately from the rest of the meal. The listed figures are 0.12g salt, 2.9g protein and 78kcal per 100g. Those figures do not establish a product-specific reduced-salt claim; check the current pack wording if that claim matters to you.

View on Joybuy

Questions about tinned custard

Can these ready-to-serve tins be treated as high-protein foods?

Do not treat the compared Ambrosia Light, Ambrosia Deluxe, Tesco Ready To Serve or Asda Light tins as high-protein choices. Their declared protein ranges from 2.4g to 2.9g per 100g; the high-protein claim condition in the UK legislation cited for this comparison requires at least 20% of a food's energy to come from protein, which these compared products do not meet.

Does “light” on a custard tin mean reduced salt?

No: read the salt declaration separately. Ambrosia says its Light custard has 30% less sugar and fat than standard Ambrosia Devon Custard, while the Light tin declares 0.12g salt per 100g; that comparison is not a reduced-salt claim.

What should I do with custard left in an opened pack?

Follow the instructions on the particular pack. Ambrosia Light, Ambrosia Deluxe, Tesco Ready To Serve and Sainsbury's Ready To Eat specify refrigeration after opening and use within three days.