Monthly Archives: October 2021

I was reading a recent Meininger Wine Business Report and found this piece: https://www.wine-business-international.com/wine/news/wine-adulteration-austria.

For those that are not familiar with Austria and its history with wine, this article will familiarize you with the 1985 scandal when millions of bottles for domestic and export sales were found to have had diethylene glycol (similar to automobile antifreeze) added. This stuff can be very unhealthy. But, on the upside, it does make the wine fuller bodied and sweeter. Nice trade-off there. Fortunately, no one was seriously hurt, but the result of that mess was the destruction of 36 million bottles of Austrian wine and the complete collapse of their wine industry. It would take almost 20 years and the addition of numerous laws and legal safe-guards for their wine industry to fully recover. There has finally been a huge resurgence in the popularity of Austrian wines in the last decade.

In several wine producing countries, it is illegal to add any type of glycerine to wine. Unfortunately, in the U.S., it is permitted. There is a huge difference between synthetic glycerine and vegetable glycerine. The synthetic type CAN be quite toxic. The vegetable version is very safe, but desirable as a wine additive? (discussion to follow below) 25,000 bottles were discovered and destroyed in Austria that were found to have synthetic glycerine added this year. The added substance in question was a trivalent alcohol that gives wine a higher viscosity and is harmless, but is forbidden by Austrian law. This synthetic glycerine was petroleum-based. Convictions and fines were the result. Sentences are not yet legally binding though. With Austria’s past, any chance of toxicity is serious bad form.

Some of the additives listed below are illegal in certain countries, but most are permitted in the U.S. Although, we don’t get to know which are used in the wine we drink, BECAUSE WINE HAS BEEN EXEMPTED FROM USFDA FOOD LABELING REQUIREMENTS. What does this mean to you personally? Well, nothing here is outright dangerous, but don’t underestimate the impact on allergies, tolerances and such. For example, my wife has a known allergy to soy, others find they have limited tolerance to added sulfites, etc. In general, all of these can affect color, flavors, aromas and the viscosity of wine. Your reaction to this discussion might be: “but, these additives are only used in cheap wine”. You would be very wrong. This list is commonly used in all price categories.

Here is a short list of common wine additives:

• Citric, Fumaric, Malic, Lactic and Tartaric acids – to acidify wine
• Calcium Carbonate – to de-acidify wine
• Oak and Oak Chips – to add tannin, flavors & aromas
• Acetaldehyde – to stabilize color
• Copper Sulfate – to eliminate sulfites and mercaptans (bad tastes/odors)
• Sulfur Dioxide, Potassium Sorbate – to sterlize and preserve wine
• Mega Purple – to add color and body
• Tannin Powder – to add mouth-feel and make wine more ageable
• Gum Arabic – to reduce astringency (tannin) in wine
• Dimethyl Dicarbonate – to stabilize, sterilize and remove alcohol
• Sugar, Saccharose, or Grape Juice Concentrate – to add sweetness also called “chaptalization”
• Vegetable Glycerine – to add body and sweetness
• Gelatin, Albumin (egg white), Bentonite, Casein – to remove haziness caused by free proteins
• Water – to dilute over-concentrated wine
• Engineered, Cultured Yeasts – to control the fermentation process (vs. wild yeasts)
• Diammonium Phosphate – removes naturally occurring sulphur in wine
• Protease – improves wine heat tolerance
• Soy Flour – Feeds yeast to accelerate fermentation

All of this talk of additives has to lead your mind toward interventionist vs. non-interventionist winemaking philosophies. Have you considered the issue for your own wine consumption? Personally, I believe I can taste the difference in over-manipulated wines. Napa Valley producers in the low to medium price range have been utilizing these methods more of late. This is the key reason why my personal wine cellar has been moving towards a higher percentage of French and Italian wines, especially in the low-medium price ranges. France and Italy have very stringent wine laws regarding additives and in general, have winemaking cultures of less intervention. So, if you would like to address this issue, how can you know which U.S. wines to buy? It may be time for you to read the back label of that next bottle of wine… Wine in the U.S. can be “labeled” as organic, biodynamic, natural and sustainable… and can also be certified as such by a third party. Many U.S. wineries are implementing at least some of these practices. Here is what these terms mean:

• Natural – Typically are made in a low-intervention style, fermented with native yeasts and contain only trace amounts of added sulfites. These wines are not filtered, or fined. This means they could contain particulates, or appear cloudy. Which is not necessarily a problem. These wines should have gone through the bare minimum of chemical, or winemaker intervention and are not often aged in oak. Wines produced with this approach may have limited stability and cannot be mass-produced, but are a different drinking experience, if you should choose to try them.
• Organic – These wines fall into two categories: organic wine and wine made from organically grown grapes. Certified organic wines (USDA) have stricter regulations. Vineyards must not use synthetic fertilizers and all ingredients in these wines (including yeast) must be certified organic. No sulfites may be added, although naturally occurring is permitted. These wines will display the USDA organic seal.
• Biodynamic – Unlike organic winemaking, biodynamic does not change between countries. When originally devised, the method had each day organized by fruit days (grape harvesting), root days (pruning), leaf days (watering) and flower days (vineyards to be untouched). Biodynamic practices are not required to follow this calendar, however. If you’ve seen biodynamic and organic wines grouped together at your wine shop, there is a reason. Biodynamic wines employ organic practices. They avoid pesticides and depend on compost, rather than chemical fertilizer. Therefore, the majority of these wines are also organic in practice. Certified biodynamic wines are permitted to contain up to 100 parts per million of sulfites, far more than the USDA certified organic wines. So, a wine that is organic is not necessarily biodynamic, although a wine that is biodynamic is often organic.
• Sustainable – These wineries make an effort to utilize winemaking processes that protect the environment, support social responsibility, maintain economic feasibility, and are of high quality. This idea has less of a direct impact on the wine, but is an “eco-friendly” designation.