Mega Purple – an insidious additive that can ruin a wine

By on October 27, 2016

MegaPurple is a grape juice concentrate that, when used in tiny amounts, can effectively add color to a wine. Use too much, and winemakers risk ruining the wine. (Photo by Andy Perdue/Great Northwest Wine)

The next time you pick up a glass of inexpensive red wine, you might look at its color. Is it a little too dark? When you swirl it, does some purple legs remain on the glass?

It could be the natural color of the wine. Or it could be something a little more artificial.

A widely used product in the American wine industry is called Mega Purple. It’s a product made by Constellation – the world’s second-largest wine producer – and it is made by concentrating the juice from a variety called Rubired, using grapes grown primarily in California’s Central Valley.

It’s been around since the early 1970s, and the whole point was to turn a pale-colored red wine darker. In the consumer’s mind, darker means richer and more likely to be purchased and consumed.

But to several wine experts, products such as Mega Purple are an insidious additive that can mute the aromas and even change the flavors of wine.

We recently chatted with Ellen Landis, a certified wine educator and accomplished wine professional who recently relocated from California to the Pacific Northwest. She is one of the leading experts on Mega Purple and recently conducted an educational seminar on Mega Purple for a group of Northwest wine professionals.

Here’s the interview:


What is Mega Purple?

Ellen Landis is a sommelier, wine journalist and renowned international wine judge. (Photo by Andy Perdue/Great Northwest Wine)

Ellen Landis is a sommelier, wine writer and renowned international wine judge. (Photo by Andy Perdue/Great Northwest Wine)

As mentioned, it is a concentrate whose original use was as a color additive.

“Often, consumers think that a pale wine isn’t great, isn’t complex, doesn’t have enough definition, so it was introduced to add color to wine,” Landis told Great Northwest Wine. “That was the original intent.”

Landis conducts seminars in which she will doctor a wine with 0.1 percent Mega Purple and 0.2 percent. The differences are stark. She’ll take a large glass of water and add one or two drops of Mega Purple, turning the color of the water purplish black. It’s stark, and it’s astonishing.

“I can see it, I can smell it, i can detect when the aromatic varietal characteristic is muted, and it’s so obvious to me,” she said. “But I know with wines under $15 a bottle, it might be beneficial because you will add color – and you will add a hint of sweetness, which many consumers like. But it sells, so I think it depends on the use and the degree it is added. This is a very sweet product. It’s reported around 68 degrees (percent residual sweetness). That’s sweet.”

It’s also expensive, selling for around $200 per gallon. But a gallon can add color to a lot of wine – thousands and thousands of bottles.

Landis said that, by far, she notices Mega Purple the most in inexpensive California Pinot Noirs, but she’s also seen it in plenty of Merlot and Cabernet Sauvignon.

“It’s overused,” she said wearily.

Some winemakers who use Mega Purple will add it during fermentation, while others will use it later in the winemaking process. This, she says, can determine how well integrated Mega Purple is in the finished product.

Who uses MegaPurple?

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Considering how much Mega Purple is out there – reportedly, 10,000 gallons are sold per year – almost nobody admits to using it. In fact, Landis can’t get any winemakers to talk about their use of Mega Purple.

“There are very few who will admit to using it, even though it’s widely used,” she said. “I do understand the value of adding a bit of color. I believe if you use it in a very low degree, it will not take away from the wine.”

For Landis, her threshold is 0.1 percent.

Of course, Mega Purple is just one of dozens of tools a winemaker has at their disposal. Oak, tartaric acidity, tannins, yeast strains. All of these would be considered additives. But Mega Purple goes well beyond a simple tool because it can change the character of the wine.

Landis loves living in the Northwest, primarily because of the clarity and purity of the wines made in this corner of the world. More often than not, a little Mega Purple can ruin that for her.

“I think many (winemakers) look at the grape concentrates as their magic potion,” she said. “Voila! This wine is now beautiful! For the bulk of average consumers, it’s not recognizable. It’s a fruity, dense, darkly hued wine. There’s something about making a wine that consumers love, and I’m all for that.”

In fact, she believes that the vast majority of wines that sell for $15 or less per bottle probably will have a grape concentrate added to it.

What makes Landis sad is there’s another more natural solution: blending. Adding a little Malbec or Petite Sirah to a wine will add color in a hurry. In fact, one of the primary purposes of blending in, say, Bordeaux, is to fill in the “holes” in a Cabernet Sauvignon. Malbec might add color or acidity, Petit Verdot might add tannin, Merlot might smooth out the wine, and Cabernet Franc might reduce tannins and add complexity.

Landis said blending can fix a wine’s issue without removing its clarity and purity. Mega Purple can go beyond that.

“It can be very manipulative when overused, and it is often overused,” Landis said. “I am seeing a bit of Mega Purple being used here (in the Northwest). For my palate, if used in too high of a degree, it will mute the aromas, it will downsize the varietal characteristics.”


About Andy Perdue

Andy Perdue is founding partner of Great Northwest Wine LLC and a longtime wine columnist. He is a third-generation journalist who has worked at newspapers since the mid-1980s and has been writing about wine since 1998. He co-founded Wine Press Northwest magazine with Eric Degerman and served as its editor-in-chief for 15 years. He is the author of "The Northwest Wine Guide: A Buyer's Handbook" (Sasquatch, 2003) and has contributed to four other books.


  1. Adam Lee says:

    So let’s do some quick math. 10000 gallons of mega purple are produced (and it is used in products other than just wine). But let’s even assume that all 10000 gallons are used in wine and it’s all American wine. . And let’s assume that it’s used at the .1% rate that is mentioned. That means that 10million gallons of wine made in the USA have MegaPurple in them. In 2014 America produced 350million gallons of wine. So 2.8 percent of the wines made have MegaPurple. And that’s assuming the largest figures across the board.

    • Andy Perdue says:


      In addition, there are many other similar products. Many are used in higher doses than 0.1 percent. We can begin to detect it at double that.

      It would seem to be widely used in California and only occasionally used in the Pacific Northwest.

  2. Many people do assume that a deep dark color means a better and richer wine. This is frequently added to cheaper wines so people will feel they are getting a bargain. However, it can pay the bills for many wineries, and it isn’t harmful to health. Wine aficionados can usually tell if it’s used, and if they can’t, what’s the harm? $10 wines have their place. Perhaps labeling a wine with any added ingredients would be a good idea, but that isn’t likely to happen. Adding sugar to wine (chaptalization) in California is not legal, but many wineries do this anyway.

  3. Jim Nakashima says:

    I’m really curious whether wines over $75 ever use Mega-purple. I don’t mean one off to fix a bad vintage.

  4. […] Andy Perdue/Great Northwest WineThe flavor of a thousand $3 wines. […]

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  6. Howard says:

    I’m not sure how or why people accept additives in their wine. It’s cheating and if as ms. Landis claims she can detect mega purple then she has an obligation to name cheats. Do you accept chemical additives to your food when you dine at a restaurant?

  7. […] Wagner and Copper Cane’s representatives have denied using these additives. However, there is wide spread belief in the industry that they are used frequently in California–particularly for inexpensive Pinot noirs. […]

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  9. […] Andy Perdue/Great Northwest WineThe flavor of a thousand $3 wines. […]

  10. […] will resort to mass-produced, non-organic acrid-tasting grapes that require chemicals such as Mega Purple to regulate sugar levels or alter the color of wine, and up to 350 ppm of sulfites are needed to […]

  11. Gisi von Schilling says:

    This is an alarming discovery. If Mega Purple is used it should be listed on the label , just with all the food we buy at the grocery store. A customer has the right to know what goes into his body. I feel the wineries are not being honest. It’s their moral duty to list all ingredients. I am buying a bottle of “Apothic dark” Cabernet , believing it’s a good wine. However, now I find out that this so called “full bodied” wine may contain mega purple which is harmful and dangerous. I will definitely take this matter to my lawyer, to find out what can be done about this. I have a right to find out who uses it. I have a right to find out how much and how dangerous it is. I, and so many wine lovers need to know , it’s our God given right. Regards, Gisi

  12. David says:

    Products like Mega Purple have been used for years by all the big central valley wineries. The only way the “big boys” could maintain a consistent product was to “doctor” the wines. I got into the business in the early 1970’s and this was a common practice back then.

  13. David says:

    If I read right, Mega Purple is not some hideous chemical additive. It is simply a concentrated grape juice. No “chemical” added. In low dosages, e.g. <0.2% will not change flavor of sweetness, only adds some dark GRAPE coloring like blending in Malbec or other grapes. If this is not right, feel free to correct it.

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