Flavor – Can one be “taste blind” to the sweetness of stevia

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I bought some stevia powder today and tried to make waffles with it, replacing the sugar. However, no matter how much stevia I poured into the dough (carefully adding tea spoon by tea spoon, tasting it each time), I couldn't really taste any sweetness.

Other family members said the dough was already very sweet.

Then I tried a pinch of stevia powder purely, and it tasted slightly bitter at first and minimally sweet after a few seconds.

From the description, stevia should be magnitudes sweeter than sugar though.

Is it possible that some people don't have the necessary taste receptors that would react on stevia and are therefore "taste blind" to its sweetness? If so, are there any numbers or guesses how many people are unable to taste it? I could not find any online resources about that, but it would be useful to know how likely e.g. a guest will not be able to taste it.

Additionally, might there be any "workarounds", like adding something to make the stevia sweetness available?

Update: I just checked the product I bought again, it's actually a mixture (proportions not mentioned in the ingredients list) of maltodextrin and steviol glycosides.

Best Answer

There's some variation in how people respond to Stevia:

From 2013: Multiple genes manage how people taste sweeteners

another study recently published in the journal Chemosensory Perception, Allen had 122 participants taste two stevia extracts, RebA -- Rebaudioside A -- and RebD -- Rebaudioside D. Stevia is a South American plant that has served as a sweetener for centuries, according to the researchers. While the plant is becoming more popular as a natural non-nutritive sweetener, consumers have reported a variety of tastes from stevia-based sweeteners, including bitterness.

No mention of people not tasting the sweet at all, but it is a big gene pool. In me, the stuff is a slow,tight binder. It takes a while for the sweet to come on once I've eaten the stevia, and it takes a minute or two for the sweet to wear off after I've had it.

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