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I purchased both guar gum and xanthan gum in little unmarked baggies from the bulk section of my local health foods store.

This was months ago and since I foolishly forgot to label them, now I have no idea which is which. How can I tell? Are there any experiments I can do? Taste tests?

One is slightly darker, but that's the only obvious visual difference.

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Guar gum has a particular grassy/earthy/beany smell, whereas xanthan gum is much closer to odorless.

  • Xanthan is far slimier. It's also harder to mix without a high speed blending. – Wayfaring Stranger Jan 15 at 2:10

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