Who is this for?

Plant-based biscuit bakers replacing dairy milk

If your recipe calls for milk, the drink’s stated use is worth checking. Oatly says its Oat Drink Whole can replace milk in cooking and baking, though the instruction does not establish how a particular biscuit recipe will turn out.

Bakers managing recipe sweetness

When a recipe already specifies sugar or syrup, compare the oat drink’s labelled sugars as well as its name. Alpro lists 0.0g sugars per 100ml and no sweeteners for Oat No Sugars.

Households checking allergens

Check the exact carton before baking for someone with an allergy or coeliac disease. The Food Standards Agency identifies oats as an allergen even in gluten-free-labelled products, and individual drinks can carry further warnings.

What matters when choosing an oat drink?

Start with the milk specified by your biscuit recipe, then check sweetness, the intended eater’s requirements and how much you can use from the pack.

PriorityWhat to checkYour needs
Recipe fit Check whether the maker mentions cooking or baking, and compare the labelled fat values using the same quantity basis. Oatly recommends its Oat Drink Whole as a milk replacement for cooking and baking. If my recipe calls for whole milk, I want a drink with a stated baking use. I would try a small batch before assuming the biscuits will have the same texture.
Sweetness Read sugars per 100ml and any statement about sweeteners. Alpro lists 0.0g sugars per 100ml and no sweeteners for Oat No Sugars; Sainsbury’s lists 4.2g sugars per 100ml for its Oat Drink. With sugar, syrup or chocolate already measured into my recipe, I want to know what the drink contributes rather than relying on a “plain” or “original” name.
Allergens Read the current carton’s oat, gluten-free and other allergen statements. M&S says Only 3 Ingredients Oat Drink is not suitable for coeliacs or people with a wheat allergy; Sainsbury’s warns that its Oat Drink is not suitable for people with a soya allergy. When sharing biscuits, I need to check the particular product against the intended eater’s requirements. A plant-based label alone does not answer that question.
Pack quantity Check both the carton size and carton count. Minor Figures identifies its Barista Oat case as 6 × 1L: six litres, rather than approximately 3.41 litres for six UK pints. I may need a particular volume, a multipack or simply a choice of drinks. Those are different reasons to buy.
After opening Follow the storage instructions on the chosen carton. Tesco says to refrigerate its Oat Drink after opening and use it within five days; M&S gives three days for Only 3 Ingredients Oat Drink. If I bake occasionally, I need a plan for the remainder of each opened carton before choosing a large pack.

Buying mistakes to avoid

  • Reading “six pints” as “six cartons”

    A 6 × 1L case contains six litres, considerably more than six UK pints. The pack formats are not interchangeable.

    Decide whether you need approximately 3.41 litres, six one-litre cartons or six different options, then check the quantity on the listing.

  • Assuming every oat drink replaces whole milk in the same way

    Oatly gives a cooking-and-baking replacement instruction for Oat Drink Whole. That product-specific statement does not establish an identical result for other oat drinks or biscuit recipes.

    Check the original recipe and try a small batch when changing drinks.

  • Using a plant-based label as an allergen check

    M&S states that Only 3 Ingredients Oat Drink is not suitable for coeliacs or people with a wheat allergy. Sainsbury’s gives a soya-allergy warning for its Oat Drink because of manufacturing methods.

    Read the current carton’s allergen and gluten-free information for the person who will eat the biscuits.

  • Buying a case before trying the recipe

    Minor Figures presents Barista Oat primarily for coffee, so its 6 × 1L format does not establish how it will behave in biscuit dough.

    Try the drink in a small batch before committing to a case for that recipe.

    A case also means storing and using several cartons, including any leftovers after baking.

Brand references for biscuit baking

Oatly

Its Oat Drink Whole has a specific manufacturer instruction for replacing milk in cooking and baking. That instruction applies to Whole, not automatically to Oatly’s barista drinks.

  • A stated baking use makes Whole relevant when a recipe calls for milk.
  • Coffee-foam positioning for Barista Edition is not evidence of biscuit results.

Alpro

Oat No Sugars is relevant when the drink’s labelled sugar content matters to a recipe.

  • Alpro lists 0.0g sugars and 1.5g fat per 100ml, with no sweeteners, for Oat No Sugars Drink 1L.
  • Those nutrition values do not establish how its biscuits compare with a recipe made using another drink.

Minor Figures

Barista Oat is a pack-format option if a six-carton case is useful.

  • Minor Figures lists a 6 × 1L case, 11% oats and a gluten-free label.
  • Its stated coffee use should not be treated as a biscuit-baking result.

Tesco

Tesco Oat Drink offers a one-litre own-brand carton whose label can be compared with a recipe’s requirements.

  • Tesco lists 8% oats, 1.2g fat and 3.2g sugars per 100ml.
  • Its product information does not make a biscuit-specific performance claim.

Sainsbury's

Sainsbury’s Oat Drink is another one-litre own-brand option for comparing labelled ingredients and nutrition.

  • Sainsbury’s lists 10% oats, 1.3g fat and 4.2g sugars per 100ml.
  • Sainsbury’s says this drink is not suitable for customers with a soya allergy because of manufacturing methods.

M&S

Only 3 Ingredients Oat Drink is relevant to shoppers who want to check a short ingredient list.

  • M&S lists water, oats and sea salt and states that the drink is not fortified.
  • M&S says it is not suitable for coeliacs or people with a wheat allergy.

Joybuy oat drinks for biscuit baking

These Joybuy options include barista, no-sugars and original oat drinks in individual-carton and multipack listings. Choose by the recipe and check the carton count where a listing’s quantity needs clarification.

Oatly Organic Barista Oat Drink 6 × 1L

Oatly Organic Barista Oat Drink 6 × 1L

This barista oat drink is an option to try in a small biscuit batch before using several cartons for the recipe.

The product name specifies six 1L cartons; it is not the same Oatly variant as Oat Drink Whole.

View on Joybuy
Alpro Oat No Sugars Long Life Drink 8 × 1L

Alpro Oat No Sugars Long Life Drink 8 × 1L

The no-sugars variant is worth considering when you want to account for the drink separately from the sugar specified in a biscuit recipe.

The product name specifies eight 1L cartons. Try a small batch before relying on it for a larger bake.

View on Joybuy
Oatly Long Life Barista Oat Drink, listed as 6 × 1L

Oatly Long Life Barista Oat Drink, listed as 6 × 1L

This barista variant is an option for a recipe trial, rather than a substitute for evidence about biscuit texture.

The listing describes both a six-carton format and a one-litre pack. Confirm the quantity before ordering.

View on Joybuy
Oatly No Sugars Oat Drink 1L

Oatly No Sugars Oat Drink 1L

This no-sugars variant may be of interest when comparing drinks for a recipe with measured sweeteners; try it in a small batch.

A leading “6” in the listing name does not clearly establish the carton count. Confirm the pack quantity before ordering.

View on Joybuy
Alpro Oat Original Long Life Drink 8 × 1L

Alpro Oat Original Long Life Drink 8 × 1L

If you already use an original-style oat drink, this variant can be tried in your biscuit recipe before making a larger batch.

The product name specifies eight 1L cartons; allow for how you will use them after opening.

View on Joybuy

Questions about biscuit baking with oat drink

Can I replace dairy milk with oat drink in biscuits?

Oatly says its Oat Drink Whole can replace milk in cooking and baking where a recipe calls for milk. That is a product-specific instruction, not a promise that every oat drink will produce the same biscuit texture; try a small batch when changing the drink.

Does “no sugars” mean the oat drink has no flavour?

No. Alpro Oat No Sugars lists 0.0g sugars per 100ml and no sweeteners, but it is still an oat drink with its own flavour. Consider the recipe’s other ingredients and try a small batch if flavour matters.

Are all oat drinks suitable for someone with coeliac disease?

No. M&S specifically says Only 3 Ingredients Oat Drink is not suitable for coeliacs, while Minor Figures labels its Barista Oat gluten free. The Food Standards Agency also identifies oats as an allergen in their own right. Check the current product label rather than assuming all oat drinks have the same suitability.

Is a six-carton case the same as six UK pints?

No. Minor Figures identifies its case as 6 × 1L, which is six litres; six UK pints is approximately 3.41 litres. Check whether the quantity you need is stated in pints, litres or cartons.

How long can I keep an opened carton after baking?

Follow the instructions for that product. Tesco says to refrigerate its Oat Drink after opening and use it within five days; M&S gives three days for Only 3 Ingredients Oat Drink. Do not apply either period to a different carton without checking its label.