How to tell if a silicone mould is high quality?

The risks of a low-end silicone mould

Not all silicone moulds are created equal, and the consequences of a poor choice can go far beyond a simple kitchen inconvenience. A poor-quality silicone mould presents real risks to your health and the success of your culinary preparations.

Peroxide silicone vs platinum silicone: what is the difference?

Food-grade silicone falls into two main categories depending on the vulcanisation process used during its manufacture. Peroxide silicone, which is cheaper to produce, undergoes a curing process with peroxides that can leave volatile residues in the material. These substances can be released during baking, especially at high temperatures, and migrate into your food.

Conversely, platinum silicone (or platinum-cure silicone) is vulcanised using a platinum catalyst that leaves no residue in the finished product. This more expensive process guarantees exceptional thermal stability, generally up to 260°C, and a total absence of migration of harmful substances.

Migration into food and health concerns

Migration refers to the transfer of molecules from the mould material to your food preparations. In the case of a poor-quality silicone mould or poorly stabilised peroxide silicone, several types of substances can migrate, including peroxide residues, unpolymerised additives, or fillers.

These substances can act as endocrine disruptors and present health risks, particularly during repeated exposure. Sensitive populations (children, pregnant women, people with existing health conditions) are even more vulnerable. This is why it is essential to ensure that your silicone mould is truly food-grade and meets current standards.

Criteria to check before buying a silicone mould

To choose a good quality silicone mould, several elements should catch your attention even before you make a purchase. Maé Innovation shares the criteria used by professionals to quickly eliminate dubious products.

Packaging labels (food use, LFGB/FDA, origin, max temperature)

The packaging of a quality silicone mould must state that it is a food-safe product. Also, look for the presence of recognised certifications like the LFGB standard (a very strict German standard for materials in contact with food) or FDA certification (American Food and Drug Administration).

European standards also impose specific migration tests to guarantee the safety of kitchen utensils. A serious manufacturer will not hesitate to clearly state this information. European manufacturing origin generally guarantees compliance with stricter specifications.

Temperature range: a good mould up to 240–260°C

The maximum supported temperature of the mould is a decisive criterion. A good quality silicone mould should be able to withstand temperatures ranging from -40°C (for freezer use) up to at least 240°C, or even 260°C for the best models.

Beware of moulds where the indicated maximum temperature is below 220°C: this may indicate the use of lower quality silicone or fillers that reduce thermal resistance. Maé Innovation moulds all withstand 280°C, which guarantees not only maximum safety but also increased durability, even during daily use in a professional environment.

Smell, colour, rigidity: what your mould says about its quality

As soon as you take it out of the packaging, your silicone mould gives you precious clues about its quality. A good mould should have no strong chemical smell. If you detect a pronounced smell of plastic or industrial product, it is a warning sign.

The colour can also inform you: quality moulds generally have uniform and bold shades. A dull colour, mottling, or variations in shade can indicate the presence of fillers. Regarding rigidity, a quality platinum silicone mould should be flexible but not soft: it must return to its original shape immediately after being deformed, without showing folds or residual deformations.

Brands and labels that inspire confidence

Certain brands have established themselves as references in the field of professional quality silicone moulds. Maé Innovation stands out for its expertise dedicated to pastry professionals, with a full range of certified moulds manufactured to the highest standards. Other recognised players like Silikomart or Demarle (Flexipan) also offer quality products.

Maé Innovation particularly stands out for its professional support service, offering personalised advice on the choice of moulds according to the specific needs of each activity (pastry, bakery, chocolate making, catering).

5 simple tests to recognise a good silicone mould at home

Do you already have silicone moulds or have you just acquired some? Here are five easy tests to check their quality and safety. At Maé Innovation, we encourage our customers to perform these checks to ensure the compliance of their equipment.

The hot and cold smell test

Start by smelling your mould at room temperature, straight out of the packaging. A quality silicone mould should not give off any particular smell or only a very light neutral smell. If you detect a strong chemical, plastic, or oily smell, it is a bad sign.

Next, perform the hot test: place your empty mould in an oven preheated to 200°C for 15 minutes. After cooling, smell it again. A good mould should still present no smell. If an unpleasant odour appears after heating, it indicates the presence of volatile compounds. In this case, it is recommended to stop using the mould. If you notice a lingering smell, consult our guide to eliminating bad smells from silicone moulds.

The pinch test (silicone that turns white = dubious quality)

The pinch test is one of the most revealing ways to quickly identify a poor-quality mould. Fold or pinch a part of the mould firmly between your fingers. Observe the pinched area carefully: on a high-quality silicone mould, the colour should remain perfectly uniform, with no change in shade.

If you notice that the pinched area turns white or changes colour, it is a sign that the mould contains fillers (chalk, talc, or other cheap additives) added to reduce manufacturing costs. These fillers can migrate into your food. A true platinum silicone mould never turns white when pinched. This is one of the tests we systematically perform at Maé Innovation to guarantee the absence of fillers in our moulds.

The oven temperature test (behaviour above 200°C)

To check the actual thermal resistance of your mould, place it empty in a preheated oven at 220-230°C for 20 minutes. A quality silicone mould should undergo no deformation, no change in colour, and should not release any odour.

If you notice the mould deforming, softening excessively, changing shade, or giving off a smell, its actual maximum temperature is lower than the stated specifications. Maé Innovation professional moulds are tested at 280°C under real-use intensive conditions, ensuring their stability even in the most powerful professional ovens.

The non-stick test (demoulding, sticky surface)

One of the main advantages of quality silicone is its excellent natural non-stick property. To test this characteristic, bake a simple recipe (like muffins or financiers) without adding any grease to the mould.

After baking and cooling completely, demoulding should be easy, with no part of the preparation sticking to the bottom. If you have to force it or scrape it, the silicone is of poor quality, the mould is worn out, or its surface has degraded. At Maé Innovation, we guarantee demoulding excellence even after several thousand uses, an essential criterion for professionals seeking productivity.

Visual aspect: deformation, stains, discoloration, cracks

Regularly inspect your moulds for visual signs of degradation. A quality silicone mould should maintain its original appearance for a long time. Be alert to the following clues:

• Permanent deformations: the mould does not return to its initial shape
• Persistent stains: discolourations that do not come off during washing
• General discoloration: the mould turns yellow, grey, or loses its shine
• Cracks or fissures: micro-cracks appear
• Sticky or greasy surface: a sign of material degradation

All these signs indicate either insufficient initial quality or wear that requires the mould to be replaced. Maé Innovation moulds are designed to resist these degradations thanks to high-density platinum silicone that maintains its properties even after years of intensive use.

When should you replace your silicone mould?

Even a high-quality silicone mould is not eternal. Knowing how to identify the moment it needs replacing is essential for maintaining a healthy kitchen and optimal results. Maé Innovation supports professionals in managing their mould inventory with adapted maintenance advice.

Problematic signs of wear (whitening, lingering smell, uneven baking)

Several signs should alert you to the need to replace your mould. Persistent whitening of certain areas, even without pinching, indicates structural degradation. If your mould develops a lingering smell despite repeated cleaning, it means residues have become embedded in the porous structure of the degraded silicone.

Uneven baking is also a warning sign: if your preparations bake unevenly even though your oven is working correctly, the mould has likely lost its thermal conductivity properties. If demoulding becomes systematically difficult despite careful cleaning, the non-stick surface has degraded.

Best practices to prolong lifespan (temperature, storage, cleaning)

To maximise the longevity of your quality silicone moulds, adopt a few simple habits. Always respect the maximum temperature indicated by the manufacturer: even if your mould can theoretically withstand 260°C, regular use at high temperatures accelerates ageing.

Regarding cleaning, prefer hand washing with a soft sponge and standard washing-up liquid rather than the dishwasher, which subjects the silicone to repeated aggressive cycles. Avoid abrasive cleaners that can damage the surface. Dry your moulds well before storing them.

For storage, avoid folding or compressing your moulds for long periods: store them flat or hang them if possible. Never place heavy objects on top of them as this could deform them. Never use sharp or metal utensils to demould your preparations.

Conclusion: Priority on safety and durability

Choosing a silicone mould should not be left to chance. As we have seen, the difference between high-quality silicone and low-end silicone directly impacts the safety of your food and the longevity of your utensils. By learning to identify certifications and practicing simple tests like the pinch test, you ensure that you are using healthy and high-performance equipment.

Investing in certified moulds means choosing peace of mind for all your culinary creations. At Maé Innovation, we remain dedicated to providing this excellence to both enthusiasts and experts, ensuring that every batch is as healthy as it is delicious.