Closure - Revision history

CodexWarrior: CodexWarrior: canonicalise ISBN refs

2026-01-18T02:00:21Z

CodexWarrior: canonicalise ISBN refs

← Older revision		Revision as of 04:00, 18 January 2026
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	'''Closure''' in wine refers to the device used to seal a [[bottle]], protecting the contents from [[spoilage]], [[oxidation]], and loss of [[carbon dioxide]] in [[sparkling wines]]. Beyond a purely practical role, closures influence how a wine matures, and they remain one of the most debated aspects of modern [[winemaking]].<ref>Robinson ~~(ed~~.), ''The Oxford Companion to Wine'', Oxford University Press, ~~2015~~. ISBN 9780198871316.</ref>		'''Closure''' in wine refers to the device used to seal a [[bottle]], protecting the contents from [[spoilage]], [[oxidation]], and loss of [[carbon dioxide]] in [[sparkling wines]]. Beyond a purely practical role, closures influence how a wine matures, and they remain one of the most debated aspects of modern [[winemaking]].<ref>Jancis Robinson, Julia Harding MW, Tara Q. Thomas, ''The Oxford Companion to Wine'', Oxford University Press, September 14, 2023. ISBN 9780198871316.</ref>

	== Definition and function ==		== Definition and function ==
	Closures serve to maintain the integrity of [[wine]] from [[bottling]] to opening. They regulate the ingress of oxygen, prevent contamination, and affect the rate at which a wine develops in bottle.<ref>Jackson, ''Wine Science: Principles and Applications''~~, 5th ed.~~, Academic Press, 2020. ISBN 9780128161180.</ref> The choice of closure can therefore have significant implications for style, [[shelf life]], and consumer perception.		Closures serve to maintain the integrity of [[wine]] from [[bottling]] to opening. They regulate the ingress of oxygen, prevent contamination, and affect the rate at which a wine develops in bottle.<ref>PhD Jackson, Ronald S., ''Wine Science: Principles and Applications'', Academic Press Inc, 14 April 2020. ISBN 9780128161180.</ref> The choice of closure can therefore have significant implications for style, [[shelf life]], and consumer perception.

	== Historical development ==		== Historical development ==
	The use of [[natural cork]] as a closure became widespread in the 17th century, coinciding with the adoption of glass bottles as a standard container.<ref>Robinson ~~(ed~~.), ''The Oxford Companion to Wine'', ~~2015~~. ISBN 9780198871316.</ref> For centuries, cork remained almost unchallenged as the dominant method of sealing wine. In the late 20th century, however, concerns over [[cork taint]] (caused by [[trichloroanisole]], TCA) and inconsistency in performance led to the exploration of alternatives, including screwcaps and synthetic stoppers.<ref>Jackson, ''Wine Science'', 2020.</ref>		The use of [[natural cork]] as a closure became widespread in the 17th century, coinciding with the adoption of glass bottles as a standard container.<ref>Jancis Robinson, Julia Harding MW, Tara Q. Thomas, ''The Oxford Companion to Wine'', Oxford University Press, September 14, 2023. ISBN 9780198871316.</ref> For centuries, cork remained almost unchallenged as the dominant method of sealing wine. In the late 20th century, however, concerns over [[cork taint]] (caused by [[trichloroanisole]], TCA) and inconsistency in performance led to the exploration of alternatives, including screwcaps and synthetic stoppers.<ref>Jackson, ''Wine Science'', 2020.</ref>

	== Types of closures ==		== Types of closures ==

	=== Natural cork ===		=== Natural cork ===
	[[Natural cork]] closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson ~~(ed~~.), ''The Oxford Companion to Wine'', ~~2015~~. ISBN 9780198871316.</ref>		[[Natural cork]] closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Jancis Robinson, Julia Harding MW, Tara Q. Thomas, ''The Oxford Companion to Wine'', Oxford University Press, September 14, 2023. ISBN 9780198871316.</ref>

	=== Technical cork and synthetic closures ===		=== Technical cork and synthetic closures ===
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	== Contemporary debates ==		== Contemporary debates ==
	The closure debate encompasses both technical and cultural dimensions. While many [[New World]] producers favour screwcaps for their reliability, [[Old World]] regions often continue to prefer cork due to tradition and consumer expectation.<ref>Robinson ~~(ed~~.), ''The Oxford Companion to Wine'', ~~2015~~. ISBN 9780198871316.</ref> Current research focuses on refining closure technology to balance oxygen control with consistency, ensuring wine quality across diverse markets.		The closure debate encompasses both technical and cultural dimensions. While many [[New World]] producers favour screwcaps for their reliability, [[Old World]] regions often continue to prefer cork due to tradition and consumer expectation.<ref>Jancis Robinson, Julia Harding MW, Tara Q. Thomas, ''The Oxford Companion to Wine'', Oxford University Press, September 14, 2023. ISBN 9780198871316.</ref> Current research focuses on refining closure technology to balance oxygen control with consistency, ensuring wine quality across diverse markets.

	== See also ==		== See also ==

CodexWarrior: CodexWarrior: add missing ISBNs in references

2026-01-11T19:03:27Z

CodexWarrior: add missing ISBNs in references

← Older revision		Revision as of 21:03, 11 January 2026
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	'''Closure''' in wine refers to the device used to seal a [[bottle]], protecting the contents from [[spoilage]], [[oxidation]], and loss of [[carbon dioxide]] in [[sparkling wines]]. Beyond a purely practical role, closures influence how a wine matures, and they remain one of the most debated aspects of modern [[winemaking]].<ref>Robinson (ed.), ''The Oxford Companion to Wine'', Oxford University Press, 2015.</ref>		'''Closure''' in wine refers to the device used to seal a [[bottle]], protecting the contents from [[spoilage]], [[oxidation]], and loss of [[carbon dioxide]] in [[sparkling wines]]. Beyond a purely practical role, closures influence how a wine matures, and they remain one of the most debated aspects of modern [[winemaking]].<ref>Robinson (ed.), ''The Oxford Companion to Wine'', Oxford University Press, 2015. ISBN 9780198871316.</ref>

	== Definition and function ==		== Definition and function ==
	Closures serve to maintain the integrity of [[wine]] from [[bottling]] to opening. They regulate the ingress of oxygen, prevent contamination, and affect the rate at which a wine develops in bottle.<ref>Jackson, ''Wine Science: Principles and Applications'', 5th ed., Academic Press, 2020.</ref> The choice of closure can therefore have significant implications for style, [[shelf life]], and consumer perception.		Closures serve to maintain the integrity of [[wine]] from [[bottling]] to opening. They regulate the ingress of oxygen, prevent contamination, and affect the rate at which a wine develops in bottle.<ref>Jackson, ''Wine Science: Principles and Applications'', 5th ed., Academic Press, 2020. ISBN 9780128161180.</ref> The choice of closure can therefore have significant implications for style, [[shelf life]], and consumer perception.

	== Historical development ==		== Historical development ==
	The use of [[natural cork]] as a closure became widespread in the 17th century, coinciding with the adoption of glass bottles as a standard container.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref> For centuries, cork remained almost unchallenged as the dominant method of sealing wine. In the late 20th century, however, concerns over [[cork taint]] (caused by [[trichloroanisole]], TCA) and inconsistency in performance led to the exploration of alternatives, including screwcaps and synthetic stoppers.<ref>Jackson, ''Wine Science'', 2020.</ref>		The use of [[natural cork]] as a closure became widespread in the 17th century, coinciding with the adoption of glass bottles as a standard container.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015. ISBN 9780198871316.</ref> For centuries, cork remained almost unchallenged as the dominant method of sealing wine. In the late 20th century, however, concerns over [[cork taint]] (caused by [[trichloroanisole]], TCA) and inconsistency in performance led to the exploration of alternatives, including screwcaps and synthetic stoppers.<ref>Jackson, ''Wine Science'', 2020.</ref>

	== Types of closures ==		== Types of closures ==

	=== Natural cork ===		=== Natural cork ===
	[[Natural cork]] closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref>		[[Natural cork]] closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015. ISBN 9780198871316.</ref>

	=== Technical cork and synthetic closures ===		=== Technical cork and synthetic closures ===
Line 26:		Line 26:

	== Contemporary debates ==		== Contemporary debates ==
	The closure debate encompasses both technical and cultural dimensions. While many [[New World]] producers favour screwcaps for their reliability, [[Old World]] regions often continue to prefer cork due to tradition and consumer expectation.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref> Current research focuses on refining closure technology to balance oxygen control with consistency, ensuring wine quality across diverse markets.		The closure debate encompasses both technical and cultural dimensions. While many [[New World]] producers favour screwcaps for their reliability, [[Old World]] regions often continue to prefer cork due to tradition and consumer expectation.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015. ISBN 9780198871316.</ref> Current research focuses on refining closure technology to balance oxygen control with consistency, ensuring wine quality across diverse markets.

	== See also ==		== See also ==

PathFinder: PathFinder: add internal links

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PathFinder: add internal links

← Older revision		Revision as of 17:01, 10 January 2026
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	=== Natural cork ===		=== Natural cork ===
	Natural cork closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref>		[[Natural cork]] closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref>

	=== Technical cork and synthetic closures ===		=== Technical cork and synthetic closures ===

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'''Closure''' in wine refers to the device used to seal a [[bottle]], protecting the contents from [[spoilage]], [[oxidation]], and loss of [[carbon dioxide]] in [[sparkling wines]]. Beyond a purely practical role, closures influence how a wine matures, and they remain one of the most debated aspects of modern [[winemaking]].<ref>Robinson (ed.), ''The Oxford Companion to Wine'', Oxford University Press, 2015.</ref>

== Definition and function ==
Closures serve to maintain the integrity of [[wine]] from [[bottling]] to opening. They regulate the ingress of oxygen, prevent contamination, and affect the rate at which a wine develops in bottle.<ref>Jackson, ''Wine Science: Principles and Applications'', 5th ed., Academic Press, 2020.</ref> The choice of closure can therefore have significant implications for style, [[shelf life]], and consumer perception.

== Historical development ==
The use of [[natural cork]] as a closure became widespread in the 17th century, coinciding with the adoption of glass bottles as a standard container.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref> For centuries, cork remained almost unchallenged as the dominant method of sealing wine. In the late 20th century, however, concerns over [[cork taint]] (caused by [[trichloroanisole]], TCA) and inconsistency in performance led to the exploration of alternatives, including screwcaps and synthetic stoppers.<ref>Jackson, ''Wine Science'', 2020.</ref>

== Types of closures ==

=== Natural cork ===
Natural cork closures, made from the bark of the cork oak, remain the most traditional choice. They are valued for their elasticity and micro-permeability, which allows small amounts of oxygen to enter the bottle and contribute to controlled [[ageing]]. Their principal drawback is the risk of cork taint, as well as variability in performance.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref>

=== Technical cork and synthetic closures ===
[[Technical cork|Technical corks]], made from agglomerated particles of cork, and synthetic closures emerged as alternatives designed to reduce cost and minimise the risk of taint. Synthetic closures, often made from plastic polymers, provide consistency but have been criticised for allowing excessive oxygen ingress over long [[storage]] periods.<ref>Jackson, ''Wine Science'', 2020.</ref>

=== Screwcap ===
{{Main|Screwcap}}
The screwcap was introduced into the wine sector in the late 20th century and rapidly gained traction, particularly in [[Australia]] and [[New Zealand]]. Research from the Australian Wine Research Institute demonstrated that screwcaps provided excellent protection against oxidation and variation, with wines maintaining freshness longer compared to cork-sealed equivalents.<ref>Godden et al., “Closure performance: Australian Wine Research Institute study on screwcaps and cork”, ''Australian & New Zealand Wine Industry Journal'', 2001.</ref> Despite this, screwcaps have faced resistance in some markets due to traditional associations with cork.

=== Other closures ===
[[Glass stoppers]], have found limited adoption, particularly for premium [[white wines]]. [[Crown caps]], commonly associated with beer, are occasionally used for [[sparkling wine]] during bottle ageing and, more rarely, for [[still wines]] as a final closure.<ref>AWRI, “Closures and wine quality”, https://www.awri.com.au</ref>

== Impact on wine quality ==
The main technical consideration in closure performance is oxygen transmission. Small, consistent oxygen ingress can aid in the softening of [[tannin]] and development of aroma [[complexity]], whereas excessive oxygenation leads to spoilage. Studies have shown that different closures vary widely in oxygen transmission rates, affecting [[ageing potential]].<ref>Jackson, ''Wine Science'', 2020.</ref> Research comparing screwcaps and cork closures highlighted that screwcaps generally offered the most reliable barrier, though some winemakers argue that cork’s variability can lend character to long-aged wines.<ref>Godden et al., 2001.</ref>

== Contemporary debates ==
The closure debate encompasses both technical and cultural dimensions. While many [[New World]] producers favour screwcaps for their reliability, [[Old World]] regions often continue to prefer cork due to tradition and consumer expectation.<ref>Robinson (ed.), ''The Oxford Companion to Wine'', 2015.</ref> Current research focuses on refining closure technology to balance oxygen control with consistency, ensuring wine quality across diverse markets.

== See also ==
* [[Screwcap]]
* [[Wine faults]]
* [[Barrel]]

== References ==
{{reflist}}

[[Category:Viticulture]]
[[Category:Wine classification]]