Wondering if your silicone mould can go in the freezer? The answer is yes, provided you use a high-quality food-grade silicone mould and follow a few essential precautions. As a specialist in silicone moulds for professionals, Maé Innovation explains everything you need to know about supported temperatures, best freezing practices, and tips for preserving your moulds while achieving perfect results.
Can you put a silicone mould in the freezer?
The good news is that most high-quality food-grade silicone moulds are perfectly freezer-safe. Food-grade silicone is a flexible and durable material, specifically designed to withstand extreme temperatures, both negative and positive.
Unlike rigid metal or standard plastic moulds, silicone retains its flexibility even at very low temperatures. This property makes demoulding frozen preparations much easier: a simple twist or light pressure is enough to release your frozen creations without damaging them.
What temperatures can a silicone mould withstand?
Understanding the temperature ranges supported by your silicone mould is essential for using it safely in both the freezer and the oven. Here is an overview of the usual temperatures according to the types of moulds:
| Type of mould | Minimum temperature | Maximum temperature |
|---|---|---|
| Maé Silicone Mould (Silmaé Range) | -40 °C to -100 °C* | +280 °C |
| Classic Silicone Mould | -40 °C | +230 to +240 °C |
| Entry-level Silicone Mould | -20 °C | +200 to +220 °C |
*Temperatures reached in cryogenics, requiring careful handling of the cold material.
Food-grade silicone vs Industrial silicone
It is crucial to prioritise food-grade silicone, often called “platinum silicone,” which guarantees the absence of harmful substances and ensures safe food contact at all temperatures. This type of silicone meets strict standards and offers optimal thermal resistance.
Lower quality or industrial silicone may contain additives that migrate into food during exposure to extreme temperatures. For your safety and that of your loved ones, always check that your mould is marked “food-grade” or has the appropriate certifications.
How to use a silicone mould in the freezer?
To freeze your preparations in a silicone mould safely and obtain an impeccable result, follow these proven practical tips:
1. Use a rigid support
The flexibility of silicone, although advantageous for demoulding, can pose a problem during transport to the freezer. Always place your filled mould on a rigid tray, platter, or rack before putting it in the freezer. This precaution prevents deformations, spills, and accidents that could ruin your preparation.
2. Respect the filling level
Never fill your mould to the brim, especially if it contains liquids or preparations rich in water. When freezing, liquids expand and increase in volume. Leave a space of about 1 to 2 cm below the edge of the mould to allow for this expansion without overflowing or deforming the mould.
3. Cover to protect
Once your mould is in the freezer, remember to cover it with cling film, a suitable lid, or a freezer bag. This protection prevents frost from forming on the surface of your preparation and prevents the absorption of freezer odours that could alter the taste of your creations.
Ideal preparations for freezing in a silicone mould
- Flavoured ice cubes: infused water, fruit juices, iced coffee
- Entremets and frozen desserts: bavarois, mousses, semifreddo
- Individual portions: baby purées, compotes, soups
- Sauces and broths: pesto, coulis, chicken stock
- Flavoured butters: garlic butter, maître d’hôtel butter
- Mini-cakes and muffins: baked and then frozen for optimal preservation
4. Optimise demoulding
One of the great advantages of silicone moulds is the ease of demoulding, even for frozen preparations. To release your creation, let the mould rest for a few moments at room temperature, then apply light pressure on the edges or simply turn the mould over. The preparation will detach effortlessly.
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Can you move a silicone mould from the oven to the freezer?
Have you baked a cake and want to freeze it quickly in its mould? This is perfectly possible with a high-quality silicone mould, but watch out for extreme thermal shocks.
Food-grade silicone moulds are indeed designed to withstand hot-cold alternation; this is one of their main qualities. However, moving abruptly from a temperature of +200°C to -18°C can, over time, weaken the material and reduce its lifespan.
Important Recommendations:
- Always let your preparation cool to room temperature for 15 to 30 minutes before putting it in the freezer.
- If you are in a hurry, place the mould in the refrigerator for an hour first before transferring it to the freezer.
- Cryogenics Specific Case: At -100°C, silicone momentarily becomes vitreous (hard). Do not handle the mould abruptly and wait until it rises slightly in temperature before demoulding to avoid any risk of cracking.
If you frequently use your silicone moulds for baking-freezing cycles, you can also consult our additional article on optimising the use of silicone moulds in the oven.
Food safety and maintenance of silicone moulds
Choosing the right silicone
Always prioritise certified food-grade silicone, also known as platinum silicone. This material meets strict standards and guarantees the absence of bisphenol A (BPA), phthalates, and other potentially harmful substances. Certifications to look for include European standards EN 1186 and FDA (Food and Drug Administration).
Maintenance and hygiene
Rigorous maintenance of your silicone moulds is essential to preserve their quality and ensure the safety of your preparations:
- Wash thoroughly your moulds after each use with hot soapy water or in the dishwasher.
- Regularly inspect your moulds for any cracks, punctures, or tears.
- Dry completely before storing to prevent mould growth.
- Store flat or hanging to preserve their original shape.
- Avoid sharp objects that could puncture or cut the silicone.
Lifespan and replacement
A high-quality silicone mould, well-maintained, can last for several years. However, replace it as soon as you notice visible tears, loss of flexibility, permanent deformations, or odours that do not go away despite cleaning.
Summary of Best Practices
To use your silicone moulds in the freezer safely:
- ✓ Check that your mould withstands freezing temperatures (-40°C minimum).
- ✓ Always place the filled mould on a rigid support.
- ✓ Do not fill completely to allow for expansion.
- ✓ Cover to prevent frost and odours.
- ✓ Allow to cool before freezing a hot preparation.
- ✓ Prioritise certified food-grade silicone.
- ✓ Regularly maintain and inspect your moulds.
