You must be fully aware of whether your product is safe when you are manufacturing or selling silicone ice cube trays. This will not only help you control the product quality, but also avoid risks and gain customer trust. This article discusses multiple aspects such as the material, performance, and compliance certification of silicone ice cube trays.
Silicone Ice Cube Trays: A Material Overview
Silicone
Silicone, as a synthetic material, is manufactured primarily from silicon derived from silica (sand), combined with oxygen, carbon, and hydrogen through chemical processing.
This material has outstanding advantages, balancing flexibility and durability. Moreover, the hardness range of silicone is wide, typically ranging from 20 Shore A to 70 Shore A. It is not prone to damage and is also wear-resistant and anti-aging, suitable for various usage cases such as gaskets, hoses, spoons, etc.
You can find silicone in many fields, including daily kitchen utensils, medical devices, and industrial building materials, among others. Among all these applications, the one that is most closely related to your customers’ daily lives is the food sector. Silicone is widely used in food-contact applications and everyday kitchen products.
Food Grade Silicone
Due to the different application scopes, silicone is classified into three major categories: industrial grade silicone, food grade silicone and medical grade silicone. Food grade silicone is formulated with ingredients suitable for food-contact applications and is designed to comply with applicable food-contact regulations and migration testing requirements.
This qualified silicone is non-toxic and odorless, ensuring the safety of your customers. Therefore, it can be widely applied in areas such as maternal and infant care, kitchen utensils, etc.
For ice cube trays, due to its safe and stable material properties, qualified food grade silicone is not only non-toxic and odorless but also resistant to high and low temperatures. It can meet the refrigeration, freezing and food-storage needs of your customers, and thus has become the preferred material for most consumers and producers for food storage.
Why are Silicone Ice Cube Trays Safe?
Temperature Resistance
The silicone ice cube trays can withstand extreme temperatures, with a temperature tolerance range of -40℃ to 230℃. Your customers can safely remove it from the freezer at extremely low temperatures and can be safely cleaned with hot water.
The excellent temperature resistance of the silicone ensures that it remains stable even when exposed to alternating cold and hot conditions. Therefore, during normal daily use, silicone ice cube trays will not normally degrade or release hazardous substances within its designed operating temperature range.
Moreover, the mold can always maintain its original shape and intact structure without generating contaminants. If your customers use it to make ice cubes, the temperature resistance of the silicone ice cube trays helps ensure safe food-contact performance. It is suitable for daily freezing and hot water cleaning.
Durability
Another safety advantage of the silicone ice cube trays is its durability. During the production process, you can feel its resistance to tearing, cracking and deformation. This not only effectively extends the product’s service life, but also ensures that the product is less likely to be damaged even if your customers repeatedly freeze and demold ice cubes.
At the same time, this feature can also avoid certain risks. For example, it can prevent the mold from shedding small fragments that may get mixed into the ice cubes.
Especially if you are producing plastic ice cube trays, you will find that after multiple freeze cycles, lower-quality plastic trays may become brittle after prolonged use or repeated freeze-thaw cycles.
Therefore, the durability of the silicone ice cube trays can ensure food cleanliness in the small details that your customers may overlook, balancing practical value and usage safety.
Easy Maintenance
Apart from the above two advantages, the silicone ice cube trays are also relatively easy to maintain. When your customers clean them daily, if they don’t have to deal with frozen and difficult-to-clean food, they just need to wash them with warm water and soap.
If they are not willing to go through the hassle, they can also directly put them in the dishwasher for cleaning, which is saving both time and effort. Most high-quality silicone ice cube trays can be cleaned in the dishwasher.
After cleaning, the silicone ice cube trays can return to a clean state. Daily cleaning can effectively help reduce the growth of bacteria, mold, and various harmful microorganisms, allowing your customers to use them with peace of mind.
Although the silicone ice cube trays do not require much effort to maintain, it is necessary to remind your customers to dry them thoroughly after cleaning.
BPA-Free and Food-Safe
Bisphenol A (BPA) has many harmful effects. It can cause reproductive, metabolic and cardiovascular diseases, and even low-dose exposure poses health risks. Infants are more sensitive to chemical substances.
However, your customers will use ice cube trays to prepare food for their children, so it is very important that your product does not contain such harmful substances. But it is not safe just because it does not contain BPA. It is recommended that your customers also thoroughly identify the material composition.
Silicone itself does not contain BPA and food grade silicone ice cube trays are also typically formulated without phthalates or latex. To a certain extent, this ensures the health and safety of customers.
Silicone Ice Cube Trays: Guaranteeing Food Safety
Food safety cannot be achieved by words alone. Therefore, when purchasing silicone ice cube trays, you should ask the supplier to provide relevant compliance reports. Moreover, the food compliance requirements vary from region to region. You can refer to the following several food contact material regulations.
Don’t forget to check the report date. Silicone ice cube trays with expired reports are also non-compliant.
FDA Compliance
When you are choosing a silicone ice cube tray, you should pay special attention to the compliance with the US FDA. This sets strict regulations for food-contact products. Most countries have their own FDA standards. You should pay more attention to the differences among various countries.
Suppliers usually entrust third parties to conduct professional testing to verify the safety of the products. Silicone ice cube trays that meet FDA compliance are suitable for food processing and storage stages, and the material is safe and reliable.
For silicone used in repeated food-contact applications, 21 CFR 177.2600 is one of the commonly referenced U.S. regulatory requirements. If your silicone ice cube tray products meet the compliance requirements, it can help you effectively control product quality and expand the market.
LFGB Compliance
LFGB is the main food contact material testing standard in Europe and is part of a different regional certification system from FDA. However, there are significant differences in the testing methods between the two. The LFGB test is more stringent for your silicone ice cube trays compared to the FDA test.
Nevertheless, from the perspective of compliance costs, if you want your silicone products to meet the LFGB standard, the cost is generally higher than that of the FDA standard. FDA compliance is widely accepted in North America and many international markets.
Although both types of certified products are deemed safe for human use by customers, from a positioning perspective, LFGB represents higher-quality food grade silicone. So if you want to enter the European market, we recommend prioritizing the use of products that have passed the LFGB test, as it better meets the local compliance requirements.
EU Regulations
Due to the strict food safety requirements of the European Union, in addition to LFGB, we have also compiled the following relevant regulations for your reference:
| Regulation No. | Name | Core Requirements |
| (EC) No 1935/2004 | Food Contact Materials Framework Rule | No harmful substances released; no change to food composition, odour or taste |
| (EC) No 2023/2006 | GMP | Requires manufacturers to implement Good Manufacturing Practice to ensure consistent production quality and prevent contamination |
| (EU) 2024/3190 | BPA and Bisphenols Ban | BPA not detectable (1 μg/kg limit); other bisphenols restricted; DoC required |
| Swiss Ordinance SR 817.023.21 | Swiss Food Contact Regulation | Overall migration ≤ 10 mg/dm²(specific testing conditions); VOCs ≤ 0.5% |
| BfR Recommendation XV | BfR Silicone Guideline | VOCs ≤ 0.5% |
You also need to be aware that the EU will implement new regulations in 2027, which require you to control the contents of D4, D5, and D6 in silicone ice cube trays, with a limit of 0.1%.
ECHA has classified these substances as vPvB substances. Such substances are difficult to degrade and prone to bioaccumulation, posing long-term environmental risks. You should monitor evolving regulatory requirements and ensure compliance with applicable restrictions.
FAQ
Are Silicone Ice Cube Trays Truly Safe and Healthy?
Yes, the ice cube trays made of high-quality food grade silicone are safe. Because silicone is relatively chemically inert and does not react with food or beverages. Even if your customers use them under normal conditions, they will not release harmful substances.
However, the safety of your silicone ice cube trays mainly depends on the grade of the raw materials, the vulcanization process, and the compliance certifications.
Do Silicone Ice Cube Trays Release Harmful Substances at Freezing Temperatures?
The compliant silicone ice cube trays will not. Because food grade silicone can maintain chemical stability within the temperature range of -40℃ to 230℃. Freezing usually does not cause the silicone to degrade or release harmful substances.
Moreover, actually, a low-temperature environment is safer than a high-temperature environment because chemical migration usually increases with the rise in temperature.
Do Colored Silicone Ice Cube Trays Pose Greater Safety Risks Than Transparent Ones?
Not necessarily. The color safety of silicone ice cube trays depends on the quality of the color masterbatch. If you use food grade color masterbatch, it is safe. However, inferior color masterbatches may contain heavy metals or leachable dyes, so when purchasing colored products, you should conduct additional color migration tests.
Does No Odor Mean Silicone Ice Cube Trays Are Safe?
No. Silicone ice cube trays without any odor only indicate that they do not contain harmful substances with odors. However, some heavy metals are odorless but still pose health risks. You still need to conduct standard testing on the product.
Can Silicone Ice Cube Trays Be Used for Other Foods Such as Fruit Juice Ice Cubes?
Most of them are possible. For example, coffee ice cubes, baby food, spice ice cubes and chocolate, etc. However, for certain foods that are dark in color or have strong flavors, if they are not cleaned in time, they may leave temporary stains or odors on the silicone surface.
Final Thoughts
Legensilico has been dedicated to silicone manufacturing for over 20 years. It has multiple professional production lines, and can provide you with high-quality and safe silicone ice cube trays. If you are interested in our products, please feel free to contact us for cooperation. We also offer customization services.
