# Can sweetness be measured chemically? **URL:** \ **Category:** Factual Questions\ **Created:** [July 13, 2022, 3:42pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879 "2022-07-13T15:42:41Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Keeve](https://avatars.discourse-cdn.com/v4/letter/k/f07891/32.png) [@Keeve](https://boards.straightdope.com/u/Keeve)\ **Post date:** [July 13, 2022, 3:42pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/1 "2022-07-13T15:42:41Z")
Packets of artificial sweeteners typically say something like “Sweet as 2 teaspoons of sugar”. Is this something that can be quantitatively measured in a laboratory? Or is it merely the consensus of the manufacturer’s taste-testers? ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [July 13, 2022, 4:04pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/2 "2022-07-13T16:04:10Z")
Many sweet things are measured in _Brix_, which is actually a measure of dissolved sugars. I don’t know of any sort of scale that compares sweetness between chemically different substances, though. [Brix: a measure of fruit sweetness | Dave Wilson Nursery](https://www.davewilson.com/home-garden/getting-started/brix/#:~:text=Degrees%20Brix%2C%20usually%20shortened%20to,20%25%20sugar%2C%20for%20example). ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [July 13, 2022, 4:05pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/3 "2022-07-13T16:05:48Z")
There’;s a scale of “percent sucrose equivalent”, but I suspect it all comes back to a human taster [The Sweetener Book](https://sweetenerbook.com/assets/blogs/measure.html#:~:text=The%20%22Percent%20Sucrose%20Equivalent%22%20scale,the%20level%20of%205%25%20sucrose). > **[How do they measure the sweetness of sugar substitutes?](https://slate.com/news-and-politics/2007/05/how-do-they-measure-the-sweetness-of-sugar-substitutes.html)** > > The companies behind artificial sweeteners Splenda and Equal settled a lawsuit on May 11 over the veracity of Splenda's advertising slogan, "Made from... ---
**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\ **Post date:** [July 13, 2022, 4:07pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/4 "2022-07-13T16:07:52Z")
> [@](#): > > The taste of sucrose is our familiar basis, the ‘gold standard’ of sweet taste. Its sweetness profile includes a certain rate of sweetness onset, a maximum impression, and a prompt fading out, conditions that are not matched perfectly by other [sweeteners](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/sweetener). We all are conditioned almost from birth on sucrose sweetness and recognize any deviation from that sweetness profile. Sweetness with a delayed onset or with an aftertaste is generally disliked, mainly because it is unfamiliar compared to sucrose. > > The only way to compare it to other sweeteners is through sensory comparison, mostly done by tasting in solutions, either 10% of sucrose in water or to some other percentage. In the comparison, sucrose is given the value of either 1 or 100. The tasting procedure is carried out under defined conditions. Factors affecting the sweetness impression, besides the concentration, are the temperature, pH, the presence of other components, the sensitivity of the individual, and if the individual is trained or untrained (Nordic Sugar, 2009). A higher temperature, for example, reduces the sweetness impact of fructose considerably. ## [Technology of Main Ingredients—Sweeteners and Lipids](https://www.sciencedirect.com/science/article/pii/B978012809438900003X) Karl F. Tiefenbacher, in [Wafer and Waffle](https://www.sciencedirect.com/book/9780128094389/wafer-and-waffle), 2017 > **[Sweetness - an overview | ScienceDirect Topics](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/sweetness)** ---
**Author:** ![Keeve](https://avatars.discourse-cdn.com/v4/letter/k/f07891/32.png) [@Keeve](https://boards.straightdope.com/u/Keeve)\ **Post date:** [July 13, 2022, 4:32pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/5 "2022-07-13T16:32:43Z")
Thanks! ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [July 13, 2022, 4:38pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/6 "2022-07-13T16:38:50Z")
Scoville rating for hot peppers and the like was also defined based on human tasters. Nowadays, for capsaicin (the key ingredient in chili peppers), it’s normalized to the chemically-measured capsaicin levels, but you can still use human tasters to define a Scoville equivalent for other spicy chemicals. ---
**Author:** ![carrps](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carrps/32/2957_2.png) [@carrps](https://boards.straightdope.com/u/carrps)\ **Post date:** [July 13, 2022, 5:10pm UTC](https://boards.straightdope.com/t/can-sweetness-be-measured-chemically/967879/7 "2022-07-13T17:10:36Z")
I only knew about Brix because a good friend was a winemaker. Sugar content is important there!