Stronger than normal glass - the Isy Jars are made of 100% recyclable borosilicate glass food storage containers.
The advantage of using borosilicate glass is twofold. As well as being endlessly recyclable, it is also long-lasting due to its 2-3 times stronger, resistance to high temperatures (around 300°C) and thermal shock. As well as being an eco-friendly and durable material, glass is ideal for storing food as it retains flavour. You can therefore use it in the freezer, microwave, oven, bottle warmer and bain-marie (or any other appliance that steam heats). This makes it really versatile, suitable for a variety of uses. No need to wait for the food to thaw out in the refrigerator before heating – saving you really precious time!
Really practical, the Isy Jars are also dishwasher-safe and can be sterilised. No leakage possible with their airtight silicone lids. What's more, they do not stain when they come into contact with food (such as carrot or tomato).
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