For a school packed lunch, compare ready-to-serve custards by the salt declared per 100g, then check the amount you intend to pack; neither a light label nor a lower figure establishes a reduced-salt claim. Tesco and M&S each declare 0.10g salt per 100g for the products compared here, while Ambrosia Devon Custard declares 0.11g and Sainsbury's Ready To Eat Custard 0.15g. A tin also needs portioning, and the exact current pack and school allergy policy matter more than assumptions about whether custard contains egg.
If salt is your starting point, compare the per-100g declaration across ready-to-serve custards and work out what the portion you actually pack contributes. A smaller serving and a lower per-100g figure answer different questions.
If a child has a relevant food allergy, check the ingredients and allergen statement on the exact pack. The ready-to-serve products considered here list milk ingredients without listing egg, but that does not establish the ingredients of every custard or the suitability of a particular pack.
If the lunch needs one manageable dessert portion, consider whether you can decant custard from a larger tin and use the remainder within its stated storage period. A single-serve pot avoids that portioning step but is a different format.
Start with the current pack's salt and allergen information, then decide whether a tin, a single-serve pot or custard prepared at home fits the way the lunch will be packed.
| Concern | What to check | Who this matters to |
|---|---|---|
| Salt in the packed portion | Compare salt per 100g across ready-to-serve products, then use the planned portion to assess the amount packed. Do not assume that light means reduced salt. | If I am choosing custard with salt in mind, I need a comparable label figure without overlooking how much goes into the lunch. About 42% of consumers put that salt check first. |
| Ingredients and allergens | Read the exact pack's ingredients and allergen statement, and check the school's allergy policy. Do not assume that tin, pot and powder recipes match. | When a child's allergy makes the ingredient list decisive, I cannot judge the product by the word custard alone. Checking allergens is the primary need for about 33% of consumers. |
| Portioning and leftovers | Check the pack size, serving information and instructions for storing any remainder; consider whether preparation at home is practical if choosing powder. | If I need to pack one portion and cannot easily use an opened tin afterwards, the format changes what is practical for lunch. Roughly 25% of consumers put portioning and leftover handling first. |
The ingredient statements considered for the Ambrosia, Tesco, Sainsbury's and M&S ready-to-serve products list milk but do not list egg. That observation cannot be applied to another flavour, recipe or current pack.
Read the ingredients and allergen declaration on the product being packed, and follow the school's allergy policy.
A light description can refer to something other than salt. The label figures in this article allow a per-100g comparison, but do not establish a reduced-salt claim for any tin.
Compare the salt line and your intended portion; check the current pack before using a reduced-salt description.
A 400g tin can provide more than one portion, leaving opened custard to store. Ambrosia instructs consumers to refrigerate the remainder and use it within 3 days; M&S specifies 2 days for its product.
Decide how much to decant before packing, and follow the storage instructions on that tin rather than another brand's.
Ingredients and nutrition information can change. This matters particularly when a child's allergen check or a salt comparison rests on a specific formulation.
Use product pages to narrow the options, then check the physical pack at purchase and before packing lunch.
These examples show how pack format, declared salt and preparation differ; a brand name alone does not determine the contents of another product in its range.
Ambrosia Devon Custard comes in a 400g can. The brand also describes a separate 150g Light pot as suitable for lunchboxes; the pot is not tinned custard.
Tesco Ready To Serve Custard is a 400g ready-to-serve option for shoppers comparing tinned portions.
Sainsbury's Ready To Eat Custard is a 500g ambient pack, making portion size and leftovers relevant to a single packed lunch.
M&S Silky Smooth Custard is a 400g ambient option for comparing the salt declaration on a ready-to-serve product.
Bird's Original Custard Powder is a prepare-at-home alternative, not a ready-to-serve tin.
These Ambrosia 400g ready-to-serve tins suit a lunch plan that allows you to decant a portion and store the remainder as directed. Strawberry Flavour Devon Custard and Low Fat Custard are distinct recipes, so check each current pack's salt and allergen declarations separately.
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Consider this ready-to-serve tin if you can pack a separate portion and manage what remains. Its strawberry-flavour variant must be checked on its own current label for salt per 100g, allergens and storage instructions; the figures for standard Devon Custard do not identify this recipe.
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This ready-to-serve tin is another option when portioning from a 400g pack is workable. Low Fat describes the variant, not a reduced-salt claim: compare its current salt declaration per 100g and the amount you will pack, then check the allergen and leftover-storage instructions.
No. The ingredient statements considered for Ambrosia Devon Custard, Tesco Ready To Serve Custard, Sainsbury's Ready To Eat Custard and M&S Silky Smooth Custard list milk ingredients but do not list egg. Recipes vary, so check the exact current pack against the child's needs rather than treating the product name as an allergen declaration.
On a per-100g basis, Tesco Ready To Serve Custard and M&S Silky Smooth Custard each declare 0.10g, compared with 0.11g for Ambrosia Devon Custard and 0.15g for Sainsbury's Ready To Eat Custard. Those figures compare the specified products, not every flavour or variant, and do not establish that any tin has a reduced-salt claim.
Follow that tin's storage instructions. Ambrosia says to remove the remaining Devon Custard from the can, refrigerate it and consume it within 3 days; M&S instructs consumers to refrigerate its custard after opening and eat it within 2 days. Do not apply one product's period to another.
Check the individual school's packed-lunch and allergy policy, particularly if a child has a known allergy. The Department for Education's guidance for England says schools must publish an allergy safety policy setting out their arrangements to reduce risk; that guidance does not replace checking the exact product and the school's arrangements.