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Salt tastes biting, puckery, savory, zesty, piquant. Salt tastes like any of numerous compounds that result from replacement of part or all of the acid hydrogen by a metal or a group acting like a metal. Directly on the tongue, salt tastes biting and puckery. In your eye or on a broken skin part it can sting fiercely.
Stroke or Brain Tumour: In some cases the salty taste will not be caused by anything in your mouth at all, but rather faulty signals in your brain. If the salty taste has no other clear cause then you should consult with your doctor and they might suggest an MRI scan to rule out that possibility.