What‘s the reason why there are always flocculent substances on the silicone ice tray?

Ice grids are commonly used tools in kitchens, among which silicone ice grids with strong flexibility and simple ice block demolding are widely loved by consumers. But many consumers have reported that there are some white flocculent substances in the ice cubes made by melting silicone ice cubes, so they suspect that the quality of the silicone ice cubes they have purchased is problematic. Is the white flocculent substance an impurity produced by the silicone ice tray? Today, the editor will answer this question for everyone.

1. Characteristics of silicone ice tray: The material of silicone ice tray is stable, environmentally friendly, non-toxic, and suitable for a wide temperature range, so the silicone ice tray itself will not have any problems. The appearance of white flocculent substances is related to the adsorption performance and porous structure of silica gel ice grids, which can adsorb various substances, including minerals in water.

2. Water quality reasons: Silicone material itself has certain adsorption properties, with many small pores on its surface that can adsorb organic substances in water. When using silicone ice cubes to make ice cubes, these adsorbed substances will adhere to the surface of the ice cubes, forming flocs. In addition, if the water used to make ice contains a high amount of calcium and magnesium minerals, these minerals will precipitate at low temperatures and adhere to the surface of silicone ice cubes. After being made into ice cubes, they will stick to the surface of the ice cubes and form white flocculent substances. These minerals themselves are not harmful to humans. After adding a small amount of acetic acid and heating, the minerals will dissolve again in water.

In general, the flocculent substances in silicone ice cubes are mostly caused by water quality issues, especially minerals in the water that precipitate at low temperatures and adhere to the silicone ice cubes, forming white flocculent substances. This situation will not pose any harm to the human body. If this effect still occurs when using pure water to make ice cubes, it may be a problem with the silicone ice tray.