Who should check what?

The right carton depends on how you use soya milk, what you expect from a dairy replacement and whether anyone in the household must avoid soya.

Empty nesters replacing everyday dairy milk

If you use milk in breakfast, hot drinks and cooking, compare sugars, protein and fortification as well as carton size. A smaller household may also need to pay close attention to the instructions for storing an opened carton.

Strict vegans checking iodine

If you exclude dairy, eggs and fish, check the exact drink for iodine alongside calcium, vitamin D and vitamin B12. The NHS advises checking plant-drink labels because only some are fortified with iodine.

Households managing a soya allergy

A dairy-free label does not make a soya drink suitable for someone allergic to soya. Choose a non-soya product and read its ingredients, allergen declaration and any relevant precautionary statement on the pack.

What matters when choosing?

Start with the ingredients and nutrition panel, then check whether the carton format fits how quickly your household will use it.

PriorityWhat to checkYour needs
Fortification Read the exact carton for calcium, iodine, vitamin D and vitamin B12; do not infer fortification from a dairy-free or organic label. The NHS particularly advises checking plant drinks for iodine. I use this regularly in place of dairy milk and want to know which nutrients the drink actually lists.
Sugars Compare declared sugars per 100ml as well as wording such as unsweetened or no sugars. Tesco, Sainsbury’s and Waitrose list different values for their individual unsweetened soya drinks. For cereal, tea or savoury cooking, I would rather choose a drink whose stated sugar content and taste fit those uses.
Protein Use the same per-100ml measure: Tesco and Waitrose list 3.4g protein for their cited unsweetened drinks, while Sainsbury’s lists 2.2g for its cited product. If soya milk is an everyday replacement, I want to compare the actual product rather than assume all plant drinks have the same protein content.
Carton format Check whether the drink is chilled or long-life, the number of cartons and the refrigeration and use instructions after opening. I may use only a little at a time, so the pack needs to fit my shopping routine and the time allowed after opening.
Hot drinks and cooking Read any heating directions on the carton. Waitrose notes that its soya alternative can separate in very hot drinks or during cooking. I want to use the drink in tea, coffee or recipes without overlooking the product’s preparation advice.
Allergens Check the ingredients, allergen declaration and relevant precautionary statements on each pack. Dairy-free does not mean soya-free. Someone in my household must avoid soya, so I need a suitable non-soya alternative rather than a soya milk.

Common buying mistakes

  • Assuming every soya drink is fortified

    A plant-based or organic label does not tell you which added nutrients are present. The British Dietetic Association distinguishes fortified soya drinks from organic products.

    Check the exact carton for calcium, iodine, vitamin D and vitamin B12 if those nutrients matter to your choice.

  • Relying only on front-of-pack wording

    Unsweetened soya drinks can still differ in protein and fortification. For example, Tesco lists 3.4g protein per 100ml for its cited drink, while Sainsbury’s lists 2.2g for its cited drink.

    Compare nutrition per 100ml and check the current pack, rather than treating unsweetened as a complete description of the product.

  • Choosing a pack that is awkward to finish

    An unopened long-life carton offers cupboard storage, but an opened carton still has its own refrigeration and use instructions. Several cartons may be inconvenient if a smaller household uses soya milk infrequently.

    Check the carton count and after-opening directions before choosing a multipack.

  • Treating dairy-free as soya-allergy safe

    A soya drink contains the allergen a person with a soya allergy needs to avoid. The Food Standards Agency explains that precautionary allergen statements address possible unintended allergen presence, a separate question from what appears in the ingredients.

    Choose a non-soya alternative and read both its ingredients and relevant allergen statements on the specific pack.

Brand and retailer references

These examples describe particular drinks and listings, not every product sold under each brand or by each retailer.

Alpro

A branded long-life option for shoppers considering a no-sugars soya drink.

  • Tesco’s listing for Alpro Soya No Sugar Long Life Dairy Free Drink 1L describes added calcium, iodine and vitamins B2, B12 and D2.
  • Check the exact Alpro variant and pack size; the details of one carton do not establish those of the whole range.

Tesco

An own-label long-life, unsweetened soya drink to compare for everyday use.

  • Tesco lists 3.4g protein, 120mg calcium and 22.4µg iodine per 100ml for Tesco Longlife Soya Drink Unsweetened.
  • Read the current pack when buying, as recipes and nutrition information can change.

Sainsbury’s

An own-label chilled, unsweetened soya drink for shoppers who prefer that format.

  • Sainsbury’s lists less than 0.5g sugars, 2.2g protein, 120mg calcium and 22.5µg iodine per 100ml for its cited drink.
  • Its instructions say to refrigerate the drink and use it within three days of opening.

Waitrose

An own-label long-life, unsweetened option with listed fortification.

  • Waitrose lists 0g sugars and 3.4g protein per 100ml for Essential Unsweetened Soya Drink, alongside added calcium, iodine and vitamins.
  • Waitrose advises that its soya alternative can separate in cooking or very hot drinks; follow the current carton directions.

Asda

A retailer listing to consult for the Alpro Soya No Sugar Long Life Dairy Free Drink 1L.

  • Asda’s listing names calcium, potassium iodide and vitamins B2, B12 and D2 among that product’s ingredients.
  • That Alpro listing should not be used to infer the ingredients or nutrition of an Asda own-label drink.

Joybuy soya drink options

These Alpro options are relevant if you are considering soya drink cartons for everyday use. Check the exact variant’s carton count and fortification against your household’s needs.

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

Alpro Soya No Sugars Long Life Drink 8 x 1L

The 8 x 1L long-life format is worth weighing against how quickly a smaller household uses each carton. Joybuy’s instructions say to refrigerate after opening and use within five days; check the exact pack for iodine if that is a priority.

View on Joybuy
Alpro Soya Drink OG, listing marked 6

Alpro Soya Drink OG (6)

If you are choosing cartons for a smaller household, confirm what the ‘6’ in this variant’s name means for the pack count and volume before ordering. Check the exact carton for calcium, iodine, vitamin D and vitamin B12 if fortification matters to you.

View on Joybuy

Questions about soya milk

What should I check when replacing dairy milk with soya milk?

Read the nutrition and ingredients panels for sugars, protein and added nutrients, rather than relying on the dairy-free wording. The NHS recommends fortified dairy alternatives and advises checking whether a plant drink includes iodine.

Is dairy-free soya milk suitable for someone with a soya allergy?

No: dairy-free soya milk still contains soya. Choose a non-soya alternative and check the exact pack’s ingredients, allergen declaration and relevant precautionary information.

Can soya milk separate in tea, coffee or cooking?

Some soya drinks can separate in very hot liquids. Waitrose advises allowing water to cool slightly for hot drinks and heating its soya alternative gently in cooking; follow the directions for the product you choose.

Should a smaller household choose long-life or chilled soya milk?

Long-life cartons allow cupboard storage before opening, while a chilled drink needs refrigeration. After opening, follow the exact product instructions: Sainsbury’s specifies three days for its cited chilled drink, and Joybuy’s Alpro 8 x 1L listing specifies five days with refrigeration.

Does a fortified soya drink provide everything dairy milk would?

Do not assume the drinks are nutritionally interchangeable: check the nutrients listed on the individual carton and consider the rest of your diet. NHS guidance places fortified dairy alternatives within a varied vegan diet rather than treating one drink as a complete solution.