Prescribed For Life Ace K Sweetener, Acesulfame Potassium Powder, 200x Sweeter Than Sugar Zero Calorie Sweetener, Kosher, Semi Natural, Granular Sweetener (12oz / 340g)

This is a very effective sweetener. However, the amount you need to sweeten a cup of tea or coffee is vanishingly small, and it is way too easy to use too much. It tastes terrible if you put too much in, and the aftertaste from too much can linger for an annoyingly long time, but if you get just the right concentration, it's a very good alternative to sugar. I guess that's why you see it listed as an ingredient in so many mainstream diet sodas.

Since so little info is provided here, I went directly to the seller's website for more, and found something confusing.According to them, 24g of their Ace-K is supposed to be equivalent to 1 cup of sugar. Since one cup of sugar is 225g, that would make this product only (225/24)=9.4x sweeter than sugar. If that were true, then that would mean this product is actually only 5% Ace-K, with the other 95% being an unspecified filler. And consequently this product wouldn't be a good value at all.So I emailed them. You'd think they'd want to clear up something like that, right? But a week goes by, and no response. I took a chance and purchased anyway.Fortunately, it seems to be 100% Ace-K (or very close to it). Where I'd normally put 4 Tbsp. of sugar in my large coffee mug, 1/200th of that (3/32 tsp.) made it just about as sweet.Also on their website is the claim that it has "no funky after taste". And here they claim it has a "clean, sweet flavor without an odd after-taste". But look up Ace-K almost anywhere else, and you'll find these claims are false. For example, Wikipedia says "Like saccharin, it has a slightly bitter aftertaste, especially at high concentrations...Acesulfame K is often blended with other sweeteners (usually sucralose or aspartame). These blends are reputed...to give a more sucrose-like taste whereby each sweetener masks the other's aftertaste..." Looking at the ingredient list of commercial products (diet sodas, sugar-free cookies and candies, and so on) I have yet to see any that use Ace-K alone. It's always in combination with another sweetener.Indeed, my quick test with the coffee did taste a bit funky. Not horrible, though there was a clearly noticeable aftertaste that I'd describe as metallic. But using half as much Ace-K, then making up the difference with sucralose, greatly reduced the aftertaste as expected - and tasted better than either sweetener alone. In my experience, blends containing three or more well-chosen sweeteners can be darn near impossible to distinguish from real sugar; and although I haven't tried it yet, I believe Ace-K would fit well into such a blend.In conclusion, you'll probably like this product if you're willing to experiment, blend, and figure out how to best use it. But, you'll probably hate it if you planned on using it alone based on the seller's false claims; or worse, follow their bogus measurements!

Yuck I opened pt my finger tip in for a taste and it was the worst! a waste of money

This is the secret ingredient to why sugar free drinks have gotten so much batter in the last decade. Mix this with Aspartame and Sucralose and it tastes very close to real sugar.

So far I've only tried a little bit of this. As a starter, being in powdered/granular form it's a bit difficult to use, so I made a 10% by weight solution of it with water, similar to the 12.5% by weight sucralose sweetener I have. That is stored in a couple of cleaned out/repurposed "Mio" style squirt bottles.The first two negative reviews I've seen indicate that "they've seen it's used in diet sodas" without bothering to do further research. Ace-K is almost NEVER used on its own. It's used in combination with other sweeteners, and (based on an analysis of the ingredients of SodaStream's Dew Zero Sugar and a few research papers/studies) usually providing only 20-30% of the sweetness of the blend. For example, SodaStream's Dew ZS has 48 mg of caffeine per 12 ounce serving, and less Ace-K, with Ace-K + sucralose providing the equivalent of 46 grams of sugar. So Ace-K is providing at most 20 percent of the sweetness there.Adding a bit of this to a purely sucralose-sweetened drink definitely does seem to "round out" the taste of the drink, with a smoother taste than sucralose alone. Using this on its own will NOT provide you with good results.Unlike some other reviews that stated the conversion factor printed on the packaging was wrong, the conversion factors printed on the packaging I received (1/4 teaspoon Ace-K per cup of sugar, 200x) are consistent with published conversion factors for Ace-K. Of course, per my earlier comments, using this as a sole substitute is not a good idea. The commercial world universally uses this in blends with other high-potency sweeteners such as aspartame and sucralose.I'll update this review if I find any inconsistencies/negatives beyond that which is expected for a product that claims to be pure Ace-K.

I REALLY wanted to like this. After learning Coke Zero uses this to make the soda taste so close to the real thing with no sugar, I had to try it to help cut back on my sugar intake. Unfortunately, every way I tried it just added too much bitter after taste, the reason I generally shy away from sugar substitutes in the first place.I've tried mixing it with sucrose as others suggested to help alleviate the aftertaste, or at least lessen it, but it's still way too much for me.The positives are, if you can tolerate the aftertaste it is extremely sweet and very little goes a long long way.