Who is this choice for?

Anyone keeping an eye on their salt intake first thing

You add flavour to eggs, vegetables or another savoury dish and want to decide for yourself how much salt to add.

Anyone looking for glass storage

You’re happy to choose your stock cubes and jar separately, then store the dry cubes in a sealed container intended for dry food.

Anyone who pays close attention to ingredients

You compare the ingredients lists and allergen information for each product, rather than judging by the container.

Which criteria should you check first?

For a savoury morning meal, start with the ingredients in the stock cubes and the amount you’ll actually use. Then choose a container if glass storage matters to you.

Criterion What to check Who this matters to
Salt and portion size Compare the salt per portion with the amount of stock you’ll use. Knorr France lists 1,7 g of salt for the stated portion of its Vegetable Stock; this figure doesn’t apply to other products. If the other ingredients in my breakfast are already salty, I want to stay in control of the seasoning; around 40% of consumers would put controlling salt intake first.
Glass storage Tell the cubes’ packaging apart from a jar bought separately. For the jar, check that it’s intended for dry food and look at how it seals. I want to keep my dry cubes easy to find in a sealed, reusable container; storage would be the priority for around 30% of consumers.
Ingredients and allergens Read the ingredients list and allergen information for the exact product, including any “may contain” statements. Before seasoning a dish to share, I need to know whether the recipe suits my household’s dietary requirements; around 30% of consumers would prioritise this check.

Common mix-ups to avoid

  • Confusing a storage jar with the stock cubes’ packaging

    The MAGGI products featured by Carrefour France come in boxes of cubes, while the glass jars featured by Auchan are separate storage items.

    Check the packaging for the stock cubes you choose. If you opt for a separate jar, choose one intended for dry food.

    You’ll also need to find space for this extra container and clean it.

  • Choosing based only on the advertised flavour or pack size

    Salt content and allergen information vary by product. Knorr France lists 1,7 g of salt for the stated portion of its Vegetable Stock; some MAGGI product pages mention allergens or possible traces.

    Compare the labels of the products you’re considering, then relate the stated portion to the amount you plan to use.

  • Throwing away the jar without checking what the lid is made of

    The jar and its lid may be made from different materials.

    For an empty jar, ADEME advises putting the glass in a glass recycling container. Check the recycling instructions for the lid separately, according to its material.

Brands to compare

MAGGI

Carrefour France features products including Kub Or cubes and MAGGI organic vegetable stock.

  • Product pages make it possible to compare ingredients, allergen information and box sizes.
  • Check the exact product: describing Kub Or as a plant-based recipe doesn’t mean you can skip the information about wheat and possible traces of allergens.

Knorr

Knorr France features traditional stocks as well as a range called “no salt”.

  • This range is worth looking into if you want to add salt separately; check the product name and label of the one you choose.
  • The Knorr Vegetable Stock product page lists 1,7 g of salt for the stated portion. Don’t assume this figure applies to the whole range.

Auchan

Auchan features glass jars for storing dry food, which should be considered separately from stock cubes.

  • Product pages for 2 L jars let you check the size and type of seal.
  • A storage jar tells you nothing about the recipe, allergens or nutritional information of the stock cubes you put in it.

A jar for storing your stock cubes

If you choose your stock cubes separately, this glass jar is a storage option for dry food. It doesn’t contain any stock.

NUTS Roman Hammered Glass Jar 750 ml

NUTS Roman Hammered Glass Jar 750 ml

A separate container for storing dry food, including stock cubes you’ve already bought.

750 ml glass jar with an acacia lid and silicone seal. Stock cubes are not included; hand-wash the lid and do not put it in the dishwasher. Avoid pouring boiling liquid directly into the jar.

View on Joybuy

Frequently asked questions

Are stock cubes sold in glass jars?

Packaging varies by product: the MAGGI cubes featured by Carrefour France in the product pages mentioned here are sold in boxes. If you’re looking for cubes already packaged in glass, check the material of the packaging on the product page. A separate storage jar won’t answer this question.

Can you store stock cubes in a glass jar?

A jar intended for dry food can be used separately to store dry stock cubes. Check the seal and keep the information from the original packaging, especially the ingredients, allergens and stated date.

What should you look for on the stock cube label?

Compare the ingredients list, highlighted allergens, nutritional information and recommended portion. The Direction générale de la concurrence, de la consommation et de la répression des fraudes reminds shoppers that allergenic ingredients must be highlighted. Check the exact product, even if its name mentions vegetables.

Why check the salt content before choosing a jar?

The jar doesn’t change how much salt is in the cubes. Knorr France lists 1,7 g of salt for the stated portion of its Vegetable Stock; compare the value for each product with the amount you’ll use in your dish.

How should you recycle an empty glass jar?

ADEME advises putting glass containers in a glass recycling container. Check the recycling instructions for the lid according to its material, rather than leaving it on the jar.