ULTIMATE
WINE
STRUCTURE

Structan’s range of finishing tannins provide ultimate structure, complexity, balance and mouthfeel.

Winemakers looking for the latest technology in oak extraction that is designed for ultimate ease in dosing, with no need for filtration, 100% natural and organic, now have access to a unique set of tools to structure, finish and perfect their wines.

The Power of Nature

Structan has been developed as a finishing tannin using 150 year old French oak and 90 year old American Oak, the same raw material used for making barrels.

The same congeners found in a new oak barrel are found in Structan with substantially improved consistency and concentration, contributing to a more efficient and effective result when used in wine production. Our extraction process is highly sequenced but time honoured and involves no chemicals or synthetic ingredients. It is for this reason all our products are 100% natural and organic certified, critical for Organic and sulphur free wines.

The Power of Nature

Structan has been developed as a finishing tannin using 150 year old French oak and 90 year old American Oak, the same raw material used for making barrels.

The same congeners found in a new oak barrel are found in Structan with substantially improved consistency and concentration, contributing to a more efficient and effective result when used in wine production. Our extraction process is highly sequenced but time honoured and involves no chemicals or synthetic ingredients. It is for this reason all our products are 100% natural and organic certified, critical for Organic and sulphur free wines.

The winemaking challenge

Oenological tannins are widely used in the wine industry to improve wine quality. The bulk of these are either delivered through alternate oak products such as chips, staves and powders or derived from grape seeds, gall nuts and other botanical sources.

Structan’s range of oenological tannins deliver the familiar depth, character, structure and mouthfeel as you would find in oak barrels. Structan is used to structure, develop and enhance the natural flavors and aromatics in your wine and bind to anthocyanins to improve color stability.

Strucan imparts the typical organoleptic senses usually derived from barrel maturation and is composed of Gallo-Ellagic tannins extracted from French and American Oak.

Structan can be added at fermentation to assist in the integration and structuring of the wine, imparting key wood notes. It can also be added later in the winemaking process to improve mid-pallet structure and softness. Structan has been shown to reduce off-aromas, improve clarification, inhibit laccase activity from Botrytis or rot, and serve as a potent anti-oxidant.

The winemaking challenge

Oenological tannins are widely used in the wine industry to improve wine quality. The bulk of these are either delivered through alternate oak products such as chips, staves and powders or derived from grape seeds, gall nuts and other botanical sources.

Structan’s range of oenological tannins deliver the familiar depth, character, structure and mouthfeel as you would find in oak barrels. Structan is used to structure, develop and enhance the natural flavors and aromatics in your wine and bind to anthocyanins to improve color stability.

Strucan imparts the typical organoleptic senses usually derived from barrel maturation and is composed of Gallo-Ellagic tannins extracted from French and American Oak.

Structan can be added at fermentation to assist in the integration and structuring of the wine, imparting key wood notes. It can also be added later in the winemaking process to improve mid-pallet structure and softness. Structan has been shown to reduce off-aromas, improve clarification, inhibit laccase activity from Botrytis or rot, and serve as a potent anti-oxidant.

Structan Benefits

MOUTHFEEL MOUTH FEEL Structan provides a smooth and sophisticated mid-pallet mouth feel. OUTSTANDING SCALPING SCALPING Structan is in liquid form avoiding any flavor or color scalping normally found in tannin powders. NO SMOKE TAINT Structan has been used as a highly effective masking agent for wine suffering with smoke taint. SMOKE ORGANIC 100% ORGANIC Structan is OMRI and Ecocert certified (USDA standards), making it organic, natural and pure for use in wine. NATURAL FLAVOR FLAVOUR Structan delivers a refined tannin profile, delivering complexity and structure to your wine. FINE TUNED LIQUID DOSE LIQUID DOSE Structan is added in a highly convenient, fast acting and effective liquid dose. CONVENIENT LOW DOSE TARGETED OUTCOME Structan is dosed at very low rates delivering highly targeted results. LOW DOSE VARIETY TYPES OF WINE Structan can be used in a wide variety of wine types and varietals. USED IN ALL INGREDIENTS INGREDIENT Structan only uses the highest quality raw materials sourced from around the world. OUR RAW APPROVED FOR USE Structan is approved for use in most wine markets worldwide as a tannin extract derived from oak wood. APPROVED COST SAVINGS Structan speeds up route to market, maturation times and finished product working capital. COST CONSISTENT RESULTS Structan provides the wine maker fine control delivering predictable, measurable and consistent outcomes. CONSISTENT

Non-Aqueous Tannins

Aqueous tannins have been used in winemaking for many years. Typically these tannins are derived from green and fresh vegetative sources in many cases derived from grape products, in order to extract aqueous tannins the raw material needs to be macerated and heated to the point it breaks down, losing much of the essential character winemakers want in their end product.

Structan’s range of non-aqueous tannins are derived only from aged oak wood with the typical character, depth and profile that barrelling brings. Our extracts are all in liquid form but closer to the desired mouthfeel that oaking brings, many of our customers say is far superior than anything they have tried before

Dosing Rates

Very small dosages of Structan are required, as our extract is already in a highly concentrated liquid form. This makes measuring and adding really simple, no premixing or dissolving necessary.

Winemakers can fine-tune the delivery of WineShield as they wish and deliver the exact output they require, this is very much up to the skill of the winemaker and his desired structure, flavor and mouthfeel profile. For this reason we have provided an indicative dosage calculator where dosing is adjusted accoring to required output.

There are no real consequences to overdosing as Structan is GRAS certified (Generally Recognised as safe) however we recommend exact dosing and trial preparation to ensure that the desired level of structuring occurs.

(dosing shown here is all in mL dosed in 1L of wine or at a ratio of #:1000) 

Structan Products

Dosing Protocols

Structan dosing is very simple just shake the container prior to addition, and then add at the calculated dosage at Malolactic Fermentation for Red wine and Alcoholic Fermentation in White wine.

We recommend addition early in the winemaking process allowing Structan to work on the essential components in your wines, although Structan can be added into blending tanks later in the process.

Structan does not impact ph, yeast, filtration or other wine making factors. Structan contains a level of alcohol so is aseptic with no contamination risks.

Structan has been dosed in many many batches, where a variety of winemaking and process methodologies have been applied. It is safe to use with your standard clarification and filtration regimes and does not impact turbidity or clarification. Please click this link to reach our specialised team to gain more guidance, discuss any concerns you may have and find out more information.

Oak extract

Entirely natural process of manufacture
USDA organic certified
Profiled delivery of structure, color & character
Used in a variety of beverage applications
Generally recognised as Safe (GRAS)
Highly stable & predictable
Low astringency

Winemakers are familiar with tannins and phenolics contained in skins, stems and in oenological finishing tannins.

Structan’s tannin based congeners contained in our extract are Hydrolyzable tannins made up of a wide range of oak wood congeners, some of these are gallic and ellagic acids derived but the magic behind our extract is our ability to deliver the character and structure contained in the breadth of old oak wood, the same wood used in making traditional barrels, with tight grains and complex and a wide range of character.