Why are the contents of the yoomi warmer safe?

Yes, the contents of the warmer are safe. The warmer contains the same gel as used in commonly available hand warmer packs.

The gel is a non-toxic, concentrated salt solution (It is used as an additive in ice cream). Just to be extra safe, we have added a food grade colourant so that any leaks are visible, and Bitrex®, a safe but bitter substance that will ensure that even if there is a leak, baby will not swallow any of the solution.

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