Who needs to check what?

Parents hosting children with different diets

A dairy-free, vegan drink may suit the menu, but check each child’s known allergies and the carton’s allergen information. The ASDA Plant Based Soya Unsweetened carton, for example, declares soya and says it may contain nuts.

Families seeking Vegan Society certification

Look for the Vegan Society mark on the specific carton rather than relying on a general vegan claim. The mark addresses the Vegan Trademark standards; it does not replace an allergen check.

Parents choosing for children aged one and over

The NHS says unsweetened, calcium-fortified milk alternatives can be given from age one as part of a balanced diet. Check the individual product’s age warning too: Sainsbury’s says its Unsweetened Soya Drink is not suitable as a main milk-drink alternative for children under two.

What matters when choosing?

Start with the children who will be served, then check certification and whether the carton’s storage instructions fit the party.

PriorityWhat to checkYour needs
Allergens Read the current ingredients, allergen declaration and any ‘may contain’ statement. Keep the carton available when serving. I need a drink that fits each child’s known allergies and the venue’s agreed allergy arrangements; dairy-free alone is not enough to decide.
Age and fortification Check for unsweetened wording, calcium fortification and product-specific age advice. The NHS describes unsweetened, calcium-fortified alternatives as an option from age one as part of a balanced diet. For younger guests, I want to check the carton’s age warning rather than assume every soya drink is suitable for the same use.
Vegan certification Check the exact carton for the Vegan Society mark if that certification matters. Check allergens separately; ASDA’s marked Plant Based Soya Unsweetened product declares soya and may contain nuts. A vegan suitability statement may be enough for my party, or I may specifically need a Vegan Society-labelled product.
Storage Check whether the carton needs chilling before opening and follow its instructions after opening. A long-life label does not replace those instructions. If I am preparing ahead, I need a storage format that works before the party and a plan for opened cartons.

What is easy to overlook?

  • Assuming dairy-free means free from other allergens

    Soya is itself an allergen. ASDA’s Vegan Society-labelled Plant Based Soya Unsweetened product also carries a ‘may contain nuts’ statement.

    Check the children’s known allergies and the physical carton, then follow the parent’s and venue’s agreed arrangements before serving.

  • Using any soya drink as a main milk replacement for a young child

    The NHS guidance on unsweetened, calcium-fortified alternatives starts at age one, and individual products can give further restrictions. Sainsbury’s excludes use of its Unsweetened Soya Drink as a main milk-drink alternative under age two; Waitrose says its Essential Unsweetened Soya Drink is not suitable under age two.

    Check each child’s age and the chosen product’s intended-use warning rather than treating a party drink as a replacement for their usual milk or formula.

  • Treating ‘vegan’ and ‘unsweetened’ as complete specifications

    A Vegan Society mark applies to a particular product, while calcium and vitamin additions vary between drinks. Neither a vegan claim nor unsweetened wording tells you everything about fortification.

    If certification matters, check for the mark on the exact carton. If fortification matters, read its ingredients and nutrition information separately.

  • Overlooking instructions after opening

    Pre-opening storage and handling after opening are separate decisions. Waitrose says to refrigerate its Essential Unsweetened Soya Drink after opening and consume it within three days.

    Follow the instructions on the carton being served, including when buying a familiar product again.

Relevant brand references

Alpro

Alpro Soya Original is described by Alpro as dairy-free and vegan.

  • Its listed nutrition per 100ml includes 120mg calcium and 3.3g protein.
  • It also lists 2.5g sugars per 100ml, so check the variant if you want an unsweetened drink.

Sainsbury’s

Sainsbury’s Unsweetened Soya Drink gives product-specific guidance for use from age one as part of a balanced diet.

  • Its product page lists 120mg calcium, 0.75µg vitamin D and 0.38µg vitamin B12 per 100ml.
  • Sainsbury’s says it is not suitable as a main milk-drink alternative for children under two.

ASDA

ASDA lists its Plant Based Soya Unsweetened product as suitable for vegans and bearing the Vegan Society mark.

  • The product-specific mark helps when Vegan Society certification is a party requirement.
  • Its allergen advice declares soya and says it may contain nuts.

Waitrose

Essential Unsweetened Soya Drink is a long-life product listed with added calcium, vitamin D, B12, B2 and iodine.

  • The long-life format is relevant when unopened-carton storage matters.
  • Waitrose warns that this product is not suitable for children under two.

M&S

M&S describes its Plant Kitchen Soya Drink as enriched with calcium, iodine and vitamins D and B12.

  • Its product information identifies the added nutrients for this drink.
  • M&S marks it unsuitable for people with nut or peanut allergy.

Joybuy product options

For party planning that calls for a long-life soya drink, this Joybuy option is an 8 × 1L Alpro No Sugars pack. Check the carton against each guest’s needs before serving.

Alpro Soya No Sugars Long Life Drink, 8 × 1L pack

Alpro Soya No Sugars Long Life Drink, 8 × 1L

The 8 × 1L long-life pack is an option when preparing several cartons for a party. Before serving children, check the current carton’s allergens, fortification, age guidance and Vegan Society mark if certification is required.

View on Joybuy

Common questions

Is soya drink suitable for a dairy-free vegan children’s party?

A dairy-free, vegan soya drink can fit the menu, but it will not suit every child. Check each guest’s known allergies against the current carton: soya is an allergen, and some products carry precautionary nut statements.

Can children aged one and over have soya drink?

The NHS says children can have unsweetened, calcium-fortified alternatives, including soya drinks, from age one as part of a balanced diet. Check the specific product’s warning as well: Sainsbury’s excludes its Unsweetened Soya Drink as a main milk-drink alternative under age two, while Waitrose says its Essential Unsweetened product is not suitable under age two.

Does the Vegan Society mark mean a drink is suitable for a child with allergies?

No. The Vegan Trademark concerns vegan standards, not suitability for an individual child’s allergies. ASDA’s Vegan Society-labelled Plant Based Soya Unsweetened product declares soya and says it may contain nuts.

What should I check for a party at a school in England?

Follow the school’s allergy arrangements and keep the drink’s ingredient information available. The Department for Education’s school allergy guide, dated 14 September 2026, says schools must support pupils with medical conditions including allergies, and that school food businesses must show allergen-ingredient information; do not assume a parent-supplied party drink has already been checked through the school’s process.

How should opened soya drink cartons be stored?

Follow the instructions on the individual carton. Waitrose says to refrigerate its Essential Unsweetened Soya Drink after opening and consume it within three days; do not apply that timing to a different product without checking its label.