Who is this advice for?

Hosts opening several boxes of stock cubes

If you’re preparing several sauces, soups or side dishes, you’ll need to reseal opened packs between uses. Auchan’s product information recommends an airtight container once the pack has been opened. If you transfer the cubes, make sure the container is intended for food use, as the DGCCRF advises.

Anyone planning a plant-based menu or catering for allergies

A product described as plant-based won’t necessarily meet all your guests’ dietary requirements. Check the ingredients and allergen information for each cube, even if you’re simply switching to a different brand or flavour.

Anyone making a particular sauce or slow-cooked dish

Choose your stock and dilution to suit the dish. Check the pack to see how much liquid to use per cube: instructions for making stock won’t necessarily apply to a sauce.

What should you check?

For your festive dinner, first check the container and your guests’ dietary requirements. Then choose the flavour and quantity of cubes you’ll need for each recipe.

CriteriaWhat to checkWho it matters to
Storing opened stock cubes Choose a food-safe container and check that it closes securely. Keep each flavour easy to identify. When I’ve opened several boxes while getting everything ready, I want to be able to reseal the cubes and find them again without mixing them up; around 27% of consumers put storage top of their list.
Ingredients and allergens Read the ingredients and allergen information for each specific product, including any warnings about possible traces. If I need to take my guests’ dietary choices or allergies into account, the flavour name alone isn’t enough to help me choose a cube. This is the top priority for around 33% of consumers.
Flavour and quantity Compare the recommended use, the amount of liquid per cube and any instructions about adding salt. For a sauce or slow-cooked dish, I want a flavour that suits the recipe without automatically using the quantity recommended for another cube; around 27% of consumers prioritise this choice.
Pack size and leftovers Compare the number of cubes your recipes require with the pack size, then check that they’ll be easy to reach in your chosen container. If I’m planning several flavours but only a few dishes for each, I’d rather be able to keep them separate without ending up with lots of unused cubes. Pack size comes first for around 13% of consumers.

Mistakes to avoid

  • Choosing a decorative jar without checking what it’s suitable for

    Not every glass container is designed for storing food directly. The DGCCRF recommends using containers intended for this purpose.

    Check that the jar is suitable for food and follow its instructions for use. Look for the glass-and-fork symbol if it appears on the product.

  • Throwing away the box as soon as you’ve transferred the cubes

    Ingredients, allergens, quantities and dates can vary from one product to another. Cubes that look similar shouldn’t become impossible to tell apart.

    Keep the packaging or a legible copy of its information, and clearly label the contents of each container.

  • Leaving the cubes near steam while you’re getting everything ready

    Auchan’s product information for some stock cubes says they can be affected by heat and moisture, and recommends storing them in an airtight container after opening.

    Seal the container again after taking out a cube, and store it somewhere cool and dry, away from cooking steam.

  • Adding salt before checking the cube’s instructions

    Recommended quantities and seasoning instructions vary by product. Auchan’s product information for Knorr beef stock cubes says there’s no need to add salt to this particular product.

    First follow the dilution instructions on the pack, then taste your dish and decide whether it needs any adjustment.

Brands and retailers to consider

MAGGI

The range includes KUB OR Original and vegetable stock cubes. Compare the ingredients of your chosen product with the needs of your recipe.

  • According to MAGGI, KUB OR Original contains no ingredients of animal origin.
  • This doesn’t mean you can skip checking the allergens and trace warnings on the specific pack.

Knorr

The range of cubes and other cooking aids covers a variety of uses. Choose a product to suit your dish and follow its specific instructions.

  • Auchan’s product information for Knorr beef-flavour stock cubes gives different quantities for water and sauces.
  • This product contains fat and beef stock; its ingredients don’t represent other Knorr products.

Auchan

The retailer offers cubes in a range of flavours, including vegetable and beef stew. Check the instructions for each product to find out how to use it in your recipe.

  • Some Auchan product information recommends storing opened cubes in an airtight container.
  • Ingredients and allergens vary by product, so check the specific cube before serving.

Carrefour

The retailer sells stock cubes and glass jars, so you could consider buying both together, depending on what’s available locally.

  • Carrefour offers jars in sizes including 0.5 L, 1 L, 1.5 L and 2 L.
  • The stated capacity alone won’t tell you how many cubes will fit in a jar. Check the opening and lid as well.

E.Leclerc

Marque Repère stocks and sauce bases make it easy to look for a product that suits your dish, whether you’re making a vegetable or poultry dish, or a sauce.

  • E.Leclerc’s range includes several types of stock and cooking bases.
  • Check the specific product you plan to use for its ingredients, allergens and storage instructions.

Lidl

If you’re shopping for the week of your festive dinner, check what’s available at your local store rather than planning your menu around a seasonal range you’re assuming will be there.

  • Lidl France lists the validity dates for its offers in its catalogues.
  • Check locally which stock cubes or containers are available when you shop.

Containers available on Joybuy

These rectangular food containers are suitable for storing opened stock cubes, but they’re not traditional glass jars. Choose a size based on how many flavours you want to keep separate, and make sure the cubes will be easy to take out without losing their original product information.

JORDAN&JUDY set of eight rectangular glass containers

JORDAN&JUDY, set of 8 rectangular borosilicate glass containers, blue

With eight different sizes, you could use a separate container for each flavour during your preparations. The set includes one container in each of the following capacities: 150, 200, 320, 370, 520, 640, 800 and 1,040 ml.

The containers are rectangular, so check the internal dimensions and opening before choosing a size for your stock cubes.

View on Joybuy
Ovenglass The Clear 2 L rectangular container with mint lid

Ovenglass The Clear, 2 L rectangular container, mint lid

This single-size container could suit you if you’d rather keep one type of stock cube together in a single container. Its stated capacity is 2 L.

Before grouping your cubes together, check the internal dimensions, how easy they are to reach and how you’ll keep their packaging information.

View on Joybuy
JORDAN&JUDY set of ten rectangular borosilicate glass containers

JORDAN&JUDY, set of 10 rectangular borosilicate glass containers, black lids

With several containers, you can keep different flavours separate. The set includes five 370 ml containers and five 1,040 ml containers, with lids described as leakproof.

These are rectangular containers rather than traditional jars. Check their internal dimensions and how easy it is to reach the cubes before buying.

View on Joybuy

Frequently asked questions

Do you need a glass jar for opened stock cubes?

No, it doesn’t have to be glass. Auchan’s product information for some stock cubes recommends using an airtight container after opening. If you transfer the cubes, choose a container intended for food storage, in line with the DGCCRF’s advice.

How can you keep the stock cube information after transferring them?

Keep the box or a legible copy of its information, then label each container. That way, you can check the ingredients, allergens, quantities and date for each product when you’re cooking.

How much stock cube should you use for a festive dinner sauce?

Follow the instructions for your chosen cube, as the quantity may differ depending on whether you’re making a sauce or stock. For its Knorr beef-flavour stock cube, Auchan’s product information recommends one cube per quarter-litre of liquid for a sauce and says there’s no need to add salt.

Is a “plant-based” cube suitable if a guest needs to avoid an allergen?

Not necessarily. A claim that a product contains no ingredients of animal origin doesn’t tell you whether it contains allergens. MAGGI describes KUB OR Original as containing no ingredients of animal origin. Even so, check the ingredients and any trace warnings on the specific pack before using it.