May. 27, 2024
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When choosing glass bottles for your essential oils, you can pick from a range of colors. While the most visually appealing option might draw your attention, consider how light will affect your product. As an essential oil vendor, which colored glass suits your customers' needs best?
Here are four common colors for essential oil glass bottles:
Each color has unique aesthetic and protective qualities. To make the best decision for your products, consider light protection, shelf life, and marketing. The darker and more opaque the glass, the more it protects against oxidation. Oxidation can break down oils and reduce their therapeutic value over time.
Light falls into two categories along the electromagnetic spectrum: invisible light and visible light. The invisible light most concerning for colored glass in essential oil bottles is ultraviolet light.
Sunlight contains ultraviolet radiation (UV rays) that can be harmful. We wear sunscreen and sunglasses to protect our skin and eyes from UV damage that can cause burns and skin cancer. These UV rays destroy skin cells similarly to how they degrade essential oils.
Rapid oxidation alters the chemicals in essential oils, making them less effective.
The science behind oxidation in glass bottles involves wavelengths of light, measured on the electromagnetic spectrum. A wavelength is measured in nanometers; 1 nanometer (nm) equals 1 billionth of a meter. Ultraviolet light from the sun ranges from 10 nm to 400 nm. The light visible to us measures from 400 nm to 780 nm.
Amber glass protects against light wavelengths between 10 nm and 400 nm. This range is ideal for shielding UV light radiation, which is why many pharmaceutical and beverage manufacturers prefer amber bottles.
While blue and green bottles may look more attractive, they don't protect your oils as effectively. These colors guard against visible light but not UV rays. They also tend to be more expensive than amber or flint bottles.
Clear glass, also known as flint glass, doesn't directly degrade the oils' integrity. However, these bottles offer no light protection. For oils prone to breakdown due to oxidation or those used slowly, clear glass isn't the best choice.
There may be times when lighter-colored glass is acceptable. If you're packaging an oil with a short shelf life or storing it in a dark space, lighter glass can be suitable.
If you opt for clear glass, include instructions about storing it away from light. Alternatively, use clear glass for oils used quickly or liberally.
Another way to bypass the need for amber or darker glass is by using a solid, wrap-around label. This type of label blocks both invisible and visible light. Customers can see the product level through the top or bottom of the bottle, a bonus when using clear glass.
Choose the best-colored glass for essential oil bottles to protect the product and enhance your brand. Customers will prefer a company that offers various colored bottles and understands each one's benefits. After all, their money is wasted if their essential oils lose their therapeutic effect.
To learn more about selecting the right colored glass for your next packaging project, contact our sales representatives at Carow Packaging to schedule a 15-minute consultation. We'll help you make the best choice for your clients based on light protection, branding, and budget.
You should always feel confident about the quality of the product you place on the shelves. Your customers rely on your brand for top-quality products, and your packaging must match that demand.
If you're looking for more advanced answers to your questions about glass bottles for essential oils, you've come to the right place.
To ensure your brand excels in packaging essential oils, we'll cover some frequently asked questions and provide our best answers.
Left: Dropper bottle with 18 DIN neck and tamper-evident transfer ring
Right: Boston round with GCMI neck
For more information, please visit 30ml Red Essential Oil Glass Dropper Bottle China Exporter.
Dropper bottles feature an 18 DIN neck accommodating dropper inserts like EuroDrop® and tamper-evident caps. 18 DIN caps and bottle necks are designed for the best performance together. The overflow capacity of dropper bottles prevents spills without overflow. Dropper bottles with capacities from 2.5 ml to 200 ml have the same 18 DIN neck size.
This standardization simplifies sourcing caps and dispensers since any 18 DIN cap fits any 18 DIN bottle. Conversely, Boston round bottles have varying neck finishes (18-400, 20-400, 22-400, 28-400) based on bottle capacity. The inconsistent neck sizes complicate sourcing dispensers.
Boston round bottles lack a standard neck ID, making orifice reducers challenging. Tamper-evident caps are incompatible due to the absence of a transfer ring. Carow Packaging offers dropper bottles similar in height, diameter, and label panel profile to Boston round bottles but with an 18 DIN neck for better dispensing options and functionality.
Glass dropper bottle options include amber, blue/cobalt, clear/flint, and green. Amber is best for ultraviolet protection. Other colors are popular because most bottles are stored in dark environments, so UV protection isn't always a concern. While dark bottles like blue or violet limit visible light, they lack amber glass's UV protection. At Carow, we offer dropper bottles in all colors and can even spray-coat bottles.
Nominal capacity is the commercial designation of the bottle for selling purposes (30ml, 1-ounce, etc.), typically measured in milliliters (ml), cubic centimeters (cc), or ounces (oz). It represents the industry standard for the container's space for a given product amount, often reaching the shoulder area when filled.
In contrast, overflow/brimful capacity is the maximum capacity when filled to the brim. This measurement is seldom used but helps understand factors like fill level, headspace for dropper inserts, or space for dropper pipettes.
Yes, you can use Boston round bottles, but you lose the dispensing benefits of the cap and dropper, such as the EuroDrop system. Boston round bottles may also have leakage issues, mitigated by using the appropriate dropper bottle and cap/dropper insert combo. Using Boston round bottles for dispensing essential oils is like selling a tricycle in a world of bicycles.
Yes, for specific flavors. Carow can help you navigate these choices. Child-resistant caps are required by the Poison Prevention Act, regulated by the Consumer Product Safety Commission (CPSC).
An orifice reducer restricts flow with a single hole. A dropper insert includes an air tube and orifice for better liquid control. Orifice reducers lack this air tube feature, offering less control over dispensing.
Vertical droppers dispense when turned upside down, providing precise drops based on oil viscosity. Horizontal droppers use the rim for dispensing, offering more variable control but potentially messier dispensing. Both styles have been effectively used for decades, and Carow Packaging supplies both types.
Glass type only matters if you're pharmaceutical and require Type I glass. Dropper bottles are typically Type III glass, suitable for high-grade essential oils.
We successfully use Chinese bottles and German caps. German factories often have high standards, precise equipment, and extensive quality checks, while Chinese bottles offer great value but may pose issues for high-speed production. Carow selects suppliers based on your needs, working with Chinese, European, and American suppliers, and producing some caps and dropper inserts in the U.S.
The choice depends on your resources and expertise. Managing manufacturer relationships yourself could be cost-effective, but time-consuming. A local distributor saves you time and troubleshooting efforts. You benefit from speaking the same language, same time zone, understanding quality factors, and in-person meetings. Also, you get quicker delivery, regional warehouses, and local technical support, eliminating international transport issues. Working with a local expert lets you focus on core business competencies.
Carow manufactures EuroDrop caps in the USA and stocks German caps, with options from China.
Hopefully, these answers assist you in choosing glass bottles for essential oils. The details matter, from glass type to child-resistant caps.
If you have questions, 30ml Amber Essential Oil Glass Dropper Bottle China Factory, don't hesitate to contact us. We're happy to provide expert guidance and explore cost-effective options for your supply needs.
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