What’s that Cup Made of? Focus on Materials
Leak-free cups can be made from a wide variety of materials: plastics, stainless steel, glass, and silicone. Each kind of material has its own benefits and drawbacks. It is important to consider each material’s individual attributes, before deciding which material is right for your child. You might have to look harder for the eco-healthier variety of cups, than some of the plastic cups we tested, but we feel the extra effort is worth it and not too difficult if you are able to order them online.
Plastic is relatively lightweight, especially compared to the other options we tested, this makes it easy for a little ones to pick up, carry around, and bring up to their mouths with relative ease. Plastic doesn’t easily break like glass can, and it doesn’t dent like stainless steel. Because of these nice attributes, the majority of transition cup bodies are made using BPA-free plastic, with a variety of mouthpiece types, and valves made from plastic, and/or silicone. Unfortunately, some studies suggest that even “BPA-free” plastics can have the potential to leach chemicals in a similar way to the old BPA plastic.
We’ve written an article on this topic you might be interested in, Are Plastics Safe for Baby Bottles and Sippy Cups?
Stainless Steel is certainly one of the heaviest options for transition cups, which might make it harder for very little ones to pick it up or use it immediately with ease, BUT it does NOT leach, break, shatter, or chip. These attributes made steel superior to plastic and glass. Stainless steel is usually easy to clean, and does not impart flavor to its contents. You can even feel good about putting it in the dishwasher unless it is painted.
Glass is an inert material that doesn’t leach chemicals. Unfortunately, it is breakable, and heavier than plastic. To circumvent this flaw, manufacturers like Lifefactory, include a silicone sleeve with their glass cups to avoid injury to babies should the glass break. That being said, glass cups can, and will, eventually break, even with a silicone sleeve. So caution should be taken when using glass cups, and babies should never be left alone with them.
The jury is still out on the true safety of silicone. Some studies indicate that heat can cause silicone to deteriorate; so be aware that some cups include silicone in their mouthpieces or lids. For this reason, you should avoid putting them in the microwave and dishwasher.
Eco Hydration can manufacture and offer high quality plastic, stainless steel materials made sippy cups for global customers, welcome to contact our sales for your water bottle projects