HIGH BOROSILICATE GLASS High borosilicate glass is the best No worries with our glass jars breaking due to temperature changes Our jars are 100 safe when heated directly from the freezerfridge Other baby food jars which are made from soda lime glass need to be at room temperature before heating or they will break SILICONE LIDS LEAKPROOF AIRTIGHT Our food grade airtight silicone lids have been designed so your baby food is 100 safe Airtight will keep your food fresh when stored in our glass jar They are also leakproof simply pop them into your bag on your days out and about with no worries with leaking NO PAINT To make this even safer our jars measurement markings are embossed instead of painted meaning no chemicals because lets face it even the safest paint still has to be made with something Safe environmentally friendly and permanent our measurement markings wont fade or wash off over time unlike paint FREEZER MICROWAVE DISHWASHER OVEN SAFE Our innovative 4oz baby food jars are made from high borosilicate glass Borosilicate glass is thermal shock resistant meaning our jars can go directly from the freezer or fridge to the microwavebottle warmer or even oven The jars and silicone lids are also dishwasher safe WHO WE ARE After more than six years Elk and Friends have been creating safe fun and environmentally friendly products for the most precious little people in your life All products are created from quality natural materials and independently tested ensuring each design is 100 safe for your children and the environment Thanks for supporting small and shopping with Elk Friends