Why is it sometimes difficult to remove ice cubes from their plastic trays? - Quora

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Answer (1 of 3): The principle issue is that when the water freezes it expands by about 10% so it puts a lot of pressure on the ice tray. This high pressure can actually stretch the plastic trays and forces the ice into the tiny cracks that form in the plastic. This makes a high surface area bond

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Unbeatable Practicality, For stunning, giant, ice cubes that pop out easily without any need to fight with the ice tray! Cubes Melt Slowly Drinks Stay

Large Cube Silicone Ice Tray, 2 Pack by Kitch, Giant 2 Inch Ice Cubes Keep Your Drink Cooled for Hours - Cobalt Blue

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AYI&AYEE Silicone Ice Cube Trays with Lids - 2 Pack

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