Olive Oil Aluminum Cap

Olive oil bottle aluminum caps are designed to provide a secure, airtight seal, helping preserve the freshness, aroma, and quality of the olive oil.

Olive oil aluminum caps are metal closures used for sealing olive oil bottles, typically made of aluminum or aluminum-plastic composite materials. They feature leak-proof, tamper-evident, and sealing functions, and can be customized with different surface finishes (matte, glossy, or anodized).

HC Aluminum offers standard sizes such as 31.5x24 mm, 31.5x44 mm, and 31.5x60 mm, with options for embossed logos, printed designs, and color customization—suitable for both glass and PET olive oil bottles.

Olive Oil Aluminum Cap Specifications

Specifications	Description
Size	Common sizes: 30x24mm, 31.5x24mm
Material	8011 aluminum alloy (H14 temper), offering excellent formability, corrosion resistance, and food contact safety.
Liner Design	Drop Stop Pourer
Cap Type	Short skirt cap, medium skirt cap, long skirt cap, suitable for different bottle types.
Sealing Technology	Uses ROPP (Roll-on Pilfer Proof) technology to ensure the cap is tightly sealed, preventing leaks, and easily detectable for tampering.
Features & Benefits	Prevents oxidation of olive oil, extends shelf life
	Leak-proof design to ensure no spillage
	Highly efficient sealing to maintain flavor and quality
	Convenient pourer or oil dispensing options available
Customization Service	Custom sizes, colors, and brand logos are available to meet personalized needs.
Application	Widely used in olive oil bottle packaging, also suitable for other liquid products (such as vinegar, juice, etc.) packaging.

Based on customer specific needs, the aluminum cap can be customized in size and design. For example, customers can choose different colors, print patterns, or even add brand logos. The customization service provided ensures that each cap meets the specific requirements of the brand and product.

Olive Oil Aluminum Cap Best-Selling Series

Product	Description
30x24mm Olive Oil Aluminum Cap	The 30x24mm Olive Oil Aluminum Cap is a high-quality, durable cap designed specifically for olive oil bottles. Made from 8011 aluminum alloy in an H14 temper, it offers excellent sealing properties to preserve the freshness and quality of the oil. The cap is equipped with a plastic liner to prevent direct contact between the oil and the metal, ensuring a longer shelf life and preventing oxidation. Its 30x24mm size makes it a perfect fit for most standard olive oil bottles, offering a secure, leak-proof seal.
31.5x24mm Olive Oil Aluminum Cap	The 31.5x24mm Olive Oil Aluminum Cap is another premium choice for sealing olive oil bottles. This cap is crafted from 8011 aluminum alloy with an H14 temper for strength and durability. The 31.5x24mm size provides a snug fit for bottles with slightly larger necks, ensuring a tight, secure seal. The internal liner protects the oil from exposure to air, reducing the risk of oxidation and extending the shelf life of the product. It is an ideal solution for packaging olive oil in a way that maintains its high quality.
Olive Oil Glass Bottle with Pop-up Aluminum Cap	The Olive Oil Glass Bottle with Pop-up Aluminum Cap combines functionality with elegance. The pop-up aluminum cap ensures easy opening while maintaining an airtight seal to protect the olive oil inside. The high-quality glass bottle provides a premium presentation and is designed to keep the oil safe from light and air, both of which can degrade its flavor and nutritional value. The pop-up feature adds convenience for users, allowing for controlled pouring and minimal spillage, making it a stylish and practical choice for olive oil packaging.
Color Aluminum Olive Oil Bottle Caps	Color Aluminum Olive Oil Bottle Caps are designed to provide a vibrant, customizable touch to olive oil packaging. Made from durable aluminum alloy, these caps are available in a variety of colors to match brand identity or enhance the aesthetic appeal of the product. The color coating does not affect the cap's functionality; it still offers excellent sealing properties and is equipped with a protective liner. These caps are perfect for brands looking to stand out on the shelf while ensuring the olive oil remains fresh and well-preserved.

Common Types of Olive Oil Aluminum Caps‌

Basic Type‌: Straight-edge aluminum caps, suitable for standard glass bottles, such as 28mm tamper-evident caps.
Functional Type‌: Caps with pour spouts or four-piece aluminum-plastic caps for easier oil control.
Customized Type‌: Printable with logos or made from GRS-certified recycled aluminum to meet sustainability needs.

Type	Main Features	Applicable Scenarios / Oils
Tamper-evident aluminum cap	Provides tamper-proof functionality; visible marks appear once opened to ensure first-use safety. Some designs feature non-refillable structures.	Olive oil, apple vinegar, and other products that require high safety for first opening.
Aluminum cap with pourer	The cap includes a pouring spout for easy oil control and spill prevention.	Everyday kitchen use—olive oil, tea seed oil, etc.
Aluminum-plastic composite cap	Typically consists of an aluminum outer cap and a plastic inner plug/liner, providing excellent sealing, leak prevention, and vapor resistance.	Suitable for olive oil, walnut oil, camellia oil, and other edible oils.

HC Aluminum Caps / Closures for Olive Oil Bottles

Specification	Details / Use
GPI 30.15 aluminum cap with flow-control insert	Used with Marasca & Dorica olive oil bottles.
31.5 mm aluminum cap with plastic pourer insert	Very common size. Black, tamper-proof, customizable.
31.5×24 mm aluminum cap with plastic insert	Widely stocked for olive oil bottles.
Custom alu-plastic caps (e.g. 30.9×24 mm, long spout insert)	Suppliers offer customization, logo printing, and food-grade inserts.

Olive Oil Aluminum Cap Material

Aluminum caps are usually made of aluminum and sometimes adopt an aluminum-plastic combination design, including components such as inner plugs and sealing rings to ensure airtightness. The screw cap engages with the bottle neck threads, and the elastic liner provides a tight fit.

Olive oil aluminum caps are typically made from 8011 aluminum alloy, which offers excellent formability, corrosion resistance, and food contact safety. In the H14 temper, it ensures sufficient strength and durability. This aluminum alloy is resistant to deformation, ensuring the cap maintains its sealing and integrity over long-term use.

Olive Oil Aluminum Cap Liner Design

Olive oil aluminum caps are often equipped with plastic inserts or other liner materials to enhance sealing performance. The purpose of the liner is to prevent direct contact between the olive oil and the aluminum cap, thereby avoiding chemical reactions and providing additional protection. The liner also plays a leak-proof role, ensuring that the liquid inside the bottle does not spill or become contaminated.

Olive Oil ROPP Aluminum Cap

Olive oil bottle caps commonly use ROPP (Roll-on Pilfer Proof) technology, which allows the cap to be rolled into shape during the sealing process, creating a tight seal. The design of the ROPP cap allows consumers to easily check if the cap has been opened, increasing convenience and safety during use.

Olive Oil Aluminum Cap Features

Prevents oxidation: Olive oil is a sensitive liquid that can easily be affected by oxidation, which leads to a decrease in flavor and quality. The aluminum cap effectively prevents air from entering the bottle, extending the shelf life of the olive oil.
Leak-proof: The liner design ensures that the cap can effectively prevent liquid leakage, keeping the bottle dry and clean during transport and storage.
High-quality seal: The olive oil cap provides an efficient seal, preventing external impurities from entering and ensuring that the olive oil retains its high-quality taste after opening.
Easy to use: Aluminum caps equipped with pourers or oil dispensers offer users a more convenient pouring experience, especially suitable for kitchen use.

Olive Oil Aluminum Cap Applications

Olive oil aluminum caps are widely used in the olive oil industry and are the preferred material for olive oil bottle packaging. In addition to regular olive oil, these caps are also suitable for packaging other liquid products, such as vinegar, juice, and other sensitive liquids.

Aluminum caps have excellent recyclability and meet modern environmental requirements. Aluminum alloy itself is an eco-friendly material, reducing negative environmental impacts and aligning with the needs of sustainable development.

Olive oil aluminum caps are carefully designed and manufactured, combining high-quality materials and technologies to ensure that sensitive liquids, such as olive oil, are best protected during transport, storage, and use, maintaining their quality and flavor.

Key Factors to Consider When Choosing Bottle Caps

Size/thread standard: the bottle neck (diameter, thread type) must match the bottle body.
Liner / liner material: usually plastic (PE, PP, etc.) liners are used to ensure sealing, supporting pourer or anti-drip functions.
Pour control / spout options: many caps include pourers to prevent dripping or backflow.
Tamper-evident function: tear bands or seals clearly indicate whether the bottle has been opened.
Food safety / compliance: materials and manufacturing processes should comply with food-grade certifications (FDA, ISO, etc.).
Decoration / branding: aluminum caps can be embossed, printed, or surface-finished.

Size compatibility is crucial: make sure the diameter and thread specifications of the aluminum cap fully match your glass bottle neck. Common sizes include 31.5 mm, 30.9x24 mm, etc. Specific dimensions should be confirmed with the supplier.
Focus on sealing and tamper-proof features: if product safety and freshness preservation are priorities, choose caps with tamper-evident (anti-tamper) designs.
Customization enhances brand image: many suppliers offer custom services, allowing you to print your brand logo, change colors (such as gold, dark green, etc.), or select special surface finishes (such as matte) to make the packaging more distinctive.
Understand MOQ and cost: for commercial procurement, pay attention to the supplier’s minimum order quantity (MOQ) and pricing. For example, wholesale MOQs may range from 30, 000 to 100, 000 pieces, and the unit price decreases as order quantity increases.

When selecting olive oil aluminum caps, the key is to balance function, appearance, and cost—based on proper size compatibility with your bottles.
For home kitchen use, aluminum caps with pourers can enhance convenience.
For brand owners sourcing caps for olive oil products, consider tamper-proof sealing, branding customization, and bulk procurement cost comprehensively.

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