The Number on the Bottom of Your Bottle Is Really Important. Here's What It Means

We usually don’t pay attention to what our water bottles are made of. After all, the plastic should be safe enough to hold our water, right?   Well, that’s not necessarily the case. Some chemicals used to make plastic bottles are more risky than others and while these all might technically be deemed safe to use, it’s probably best to avoid the more harmful ones.   Thankfully, there’s a way we can see what chemicals are used to make our water bottles—the tiny triangle symbol at the bottom of the bottle. Here are the different symbols and what they...

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