Salt-label comparers
You want a ready-to-serve cupboard dessert and prefer to compare the declared salt per 100g, rather than rely on words such as low fat or reduced.
Who is this for?
Fast dessert planners
You want custard that can be served after a weeknight dinner without making it from powder, while allowing for heating and storage after opening.
Texture-first buyers
You prefer a creamier custard but still want to check salt, fat and saturates on the particular product instead of judging it by its name.
What matters when choosing?
For a ready-to-serve cupboard dessert, start with the salt declaration, then consider serving convenience and the texture and pack size you want.
| Concern | What to check | Who this matters to |
|---|---|---|
| Salt and label wording | Compare salt per 100g and in your intended portion. Do not treat low fat or a traffic-light colour as a reduced-salt claim. | If salt is my deciding factor, I want figures I can compare directly rather than relying on the product name. About 50% of consumers put checking the salt declaration first. |
| Serving and storage | Check whether it can be served cold, how to heat it and what the label says about leftovers. | After a weeknight dinner, I want dessert ready without making custard from scratch, but I need a plan for any opened tin. About 30% of consumers prioritise serving and storage convenience. |
| Texture and portion fit | Compare pack and serving sizes, alongside the per-100g salt, fat and saturates declarations. | I may prefer a creamier custard or a pack that suits the portions I need, so salt is not my only consideration. Around 20% of consumers put texture and portion fit first. |
What should you avoid overlooking?
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Assuming low fat means reduced salt
Fat wording does not establish a salt reduction. Under the UK comparative nutrition-claim rule published on legislation.gov.uk, a reduced-salt claim requires at least a 25% reduction against a similar product.
Compare the salt declarations yourself, and check the comparison basis if a pack makes a reduced-salt claim.
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Comparing only the salt shown per serving
Tesco Groceries lists a 200g half-can serving for its 400g custard, while Sainsbury’s lists 125g servings for its 500g ready-to-eat custard. Those serving figures are not a like-for-like product comparison.
Compare salt per 100g first, then use the label to work out the amount in the portion you expect to serve.
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Treating every custard format as a cupboard shortcut
The checked M&S chilled custards require refrigeration. Bird’s powder requires milk, sugar and preparation, so neither has the same ready-to-serve cupboard use as an ambient tin.
Choose the format around the storage space and preparation time you actually have.
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Forgetting the opened tin
The checked Tesco and ASDA custards contain milk and give instructions for refrigerating leftovers after opening.
Check the allergen and storage directions on your pack, and choose a size you can use within its stated opened-storage period.
Brands to consider
Ambrosia
Ambrosia has 400g Devon Custard cans among its ambient custard options.
- Joybuy lists Ambrosia Devon Custard 400g as ready to serve, with 0.11g salt per 100g.
- That figure does not establish a reduced-salt claim. The product contains milk, and opened contents need refrigeration.
Tesco
Tesco Ready To Serve Custard is an ambient 400g option that can be served hot or cold.
- Tesco Groceries declares 0.10g salt per 100g and 0.20g per 200g half-can serving.
- It contains milk; follow the pack’s refrigeration instructions after opening.
Sainsbury’s
Sainsbury’s Ready To Eat Custard comes in a 500g pack with four stated 125g servings.
- Sainsbury’s declares 0.15g salt per 100g and says the custard can be served hot or cold.
- Use the per-100g figure, rather than its smaller stated serving, when comparing it with 400g tins.
ASDA
ASDA lists ambient 400g Just Essentials and Creamy ready-to-serve custards.
- ASDA Groceries declares 0.10g salt per 100g for Just Essentials and 0.11g per 100g for Creamy.
- The Creamy product also lists more fat and saturates per 100g than Just Essentials; both contain milk.
M&S
The checked M&S custards are chilled alternatives, not ambient tins.
- Ocado lists 0.13g salt per 100g for M&S Custard; Marks & Spencer lists 0.08g per 100g for its Collection luxury custard.
- Both require refrigerated storage, and the luxury custard has a different fat and saturates profile. Compare the full label if considering either instead of a tin.
Bird’s
Bird’s Original Custard Powder is a make-at-home option rather than ready-to-serve tinned custard.
- Bird’s directions let you prepare the custard using the specified milk and sugar.
- It needs preparation and heating. Bird’s stated 0.15g salt per 100g is for custard prepared with semi-skimmed milk, not powder as sold.
Joybuy custard selections
These Ambrosia 400g variants are options for a ready-to-serve cupboard dessert. Compare the current pack labels if salt is your deciding factor; a flavour or low-fat name does not establish a reduced-salt claim.
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Ambrosia Strawberry Flavour Devon Custard 400g
Consider this variant if you want strawberry flavour with a ready-to-serve dessert. Check its current salt declaration per 100g, milk-allergen information and opened-storage directions on the pack before choosing it for a salt-focused shop.
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Ambrosia Devon Custard 400g
This ready-to-serve can suits a cupboard dessert that can be served hot or cold. Joybuy declares 0.11g salt per 100g; the product contains milk. Refrigerate remaining custard after opening and use it within the stated three-day period.
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Ambrosia Low Fat Custard 400g
Consider this 400g variant if you are looking specifically at low-fat custard for a ready-to-serve dessert. Low fat does not mean reduced salt: compare the current salt declaration per 100g and check the heating, allergen and opened-storage instructions.
Frequently asked questions
Does low salt mean the same thing as reduced salt?
No. A low salt value on its own does not establish a comparative reduced-salt claim. For that UK claim, the rule published on legislation.gov.uk specifies a salt or sodium reduction of at least 25% compared with a similar product; check the claim and its comparison basis on the pack.
Which of the checked ambient custards declare 0.10g salt per 100g?
Tesco Groceries declares 0.10g per 100g for Tesco Ready To Serve Custard 400g, and ASDA Groceries declares 0.10g per 100g for ASDA Just Essentials Custard 400g. Use the current pack declaration when making your final comparison.
Can I heat ready-to-serve custard for dessert?
The checked Tesco, ASDA and Sainsbury’s ready-to-serve custards give hot-serving directions. Follow the particular pack’s hob or microwave instructions, including its directions for transferring custard out of the can.
What should I do with leftover tinned custard?
The checked Tesco and ASDA tins direct you to transfer leftovers to a non-metallic container and refrigerate them after opening, with a three-day use period. Follow the instructions on the tin you buy.
Which allergens should I check?
The checked ready-to-serve tinned custards contain milk. Check the ingredients and allergen statement on the specific pack before serving; a different custard format or variant may have different ingredients.