Tag Archives: high density polyethylene

Keep Your Cannabis Product Safe with Dependable Packaging

By Danielle Antos
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No matter what type of packaging you select for your cannabis product, it needs to be dependable. Packaging is not only the first impression of your company to consumers; it must securely contain and protect the product inside. No one wants to purchase products inside packaging that looks dirty or isn’t sealed properly – it is imperative that packaging looks clean and safe to consumers. How does your cannabis packaging stack up? Is it sealed properly? Is it clean and defect-free? Does it conform to the ever-changing regulations?

Using plastic bottles and closures is a great way to secure your cannabis product and showcase your brand. Plastic cannabis packaging offers many different options: bottles can be produced using sustainable materials and come in many different shapes and capacities. Typical closures are child-resistant, lined or unlined, and with a text or pictorial top.

Because packaging performs so many functions for your cannabis business, it is important to realize that not all plastic bottles and closures are the same. High density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP) and polyethylene terephthalate (PET) bottles and closures are widely used for cannabis packaging. Keep in mind that bottle selection is only half of the equation. Equally important is selecting a closure that works with the bottle and has the right features you need.

So, how do you select the right plastic closure for your cannabis bottles? Your packaging manufacturer should be able to guide you towards the solution that’s right for you. However, there are several key factors that will help you identify a superior packaging solution.

Closure Seal

Unevenly manufactured bottle tops can result in poor closure seals and an increased risk of product contamination. Choosing the incorrect lining material can lead to poor protection of your product or may not provide the proper tamper evidence required by regulatory agencies.

A bad seal can also jeopardize the freshness of your cannabis product. It can cause the flower to become excessively dry, resulting in overfilling to make up for weight loss. Situations like these can lead to higher product costs for your company.

Child-Resistant

What’s more important than keeping cannabis out of the hands of children? Child-resistant (CR) packaging not only increases safety; it instills consumer trust in your products and your brand. A closure that doesn’t fit the bottle can prevent the bottle and closure from working properly together, leading to possible accidents if the product is around children. CR closures are available in many different styles and functions – from traditional push-and-turn systems to snap caps and more.

Individual states are cracking down on child-resistant packaging certification for cannabis products. Although FDA approval is not currently required, it will be in the future. Be a leader in the cannabis industry and make preparations now to be compliant with future regulations.

Senior-Friendly

Closures can be child-resistant and at the same time be senior-friendly. Select closures that enable use by individuals who may have problems opening traditional capping systems. Innovative companies are designing closure systems that can be both safe for children as well as easy-to-open for those who have difficulty using their hands.

Compatible Bottles

Be sure that the closure you select works correctly with your chosen bottle. Can your packaging partner manufacture and supply closures that guarantee complete functionality with the bottle to protect your product? Closures produced by the same manufacturer as the bottles will ease your mind that the closure and bottle function correctly together. A one-stop-shop approach will also save you time and money.

Country of Origin

Is the packaging you use manufactured in the United States? Plastic bottles and closures manufactured overseas may have impurities in the resin or colorant that could leach or bleed into your cannabis products. They may not have documentation of origin or comply with FDA regulations. Your cannabis packaging partner should be able to provide this documentation so you can rest assured that your bottles and closures are manufactured under strict guidelines for the safety of your consumers and that your product won’t be affected. In today’s emerging cannabis market, there are stringent regulations on all types of cannabis packaging. If you use packaging that does not conform to regulations, you are putting your company at risk for product recalls, decreased sales due to low consumer confidence and other undesirable risks.

Selecting poor closures and bottles for your cannabis packaging can have long-term consequences. Not only will your brand be diminished, but your profitability will be reduced as well. Understanding how to identify the characteristics of quality plastic packaging that can help you avoid declining consumer confidence and lost sales. Work with a plastic packaging manufacturer that understands how important perfect quality is to your business.

How to Properly Store Plastic Cannabis Packaging

By Danielle Antos
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Your plastic cannabis packaging has a big responsibility. It contains and protects your product, communicates pertinent product information and delivers the first brand impression to your consumers. In order for plastic packaging to fulfill these important roles, you must take care to store and handle it properly.

Following storage condition requirements for plastic bottles helps protect your cannabis product, your company and your customers. It doesn’t matter if your cannabis packaging is HDPE (high density polyethylene), PP (polyethylene) or PET (polyethylene terephthalate), proper storage is imperative to maintain the integrity of the product until you’re ready to fill it.

Bottle and closure storage conditions such as time, temperature and humidity can have an effect on plastic containers. The exposure and age of a sample can also affect shrinkage, impact properties and the stress crack resistance of the container. Not to mention the potential threat of contamination to your cannabis product and the poor impression of your brand in the eyes of your consumers.

You may be wondering how to obtain storage information. The best place to start is with your cannabis packaging partner. Your supplier should be ready and willing to share all vital storage information with you. The best suppliers realize that there is more to a business relationship than just the financial transaction of buying packaging. The first step in proper storage is to identify the type of material that was used to manufacture your bottles and closures.

Know Your Bottle Material Type – HDPE

If you are utilizing HDPE for your cannabis packaging, the storage time should be minimal and a strict first-in-first-out inventory should be maintained. Many end users will re-approve bottles after two or three years to ensure they are damage-free.

In addition, elevated storage temperatures allow plastic containers to further shrink and harsh conditions can actually cause severe distortion. The degree of distortion and shrinkage depends on the design and how the bottles have been stored. Higher storage temperatures also accelerate the aging process of the container. A moderate storage temperature should be provided to safeguard consistent bottle dimensions and properties. It is routinely reported that HDPE bottles can withstand temperatures of 110°F/33°C for brief periods.

Although humidity itself will not degrade the plastic container, a humid environment can have a direct impact on the secondary packaging, such as the cardboard cartons used for shipping. If you use stretch wrap and/or control warehouse conditions, secondary packaging problems can be alleviated.

HDPE bottles and closures should be kept as clean as possible – it is best to leave them in the original sealed cartons. The storage area should be kept clean, dry and dust, odor, insect, and rodent-free. Following this rule will help to build consumer trust in your brand. No one wants to purchase cannabis products in dirty, dusty contaminated packages.

Using PET Bottles?

PET bottles should also be used in a first-in-first-out system to limit the time in storage. Long-term storage should be accomplished using a sealed polyethylene plastic bag or lined drums, totes, bins, Gaylord containers, supersacks or seabulks. The plastic liner will help prevent dust and dirt from entering the bottles.

Elevated storage temperatures (above 100°F/38°C) allow empty PET bottles to shrink, mainly due to relaxation of the oriented and partially oriented regions of the bottle. Extreme temperature conditions (above 131°F/55°C) can cause severe distortion of the amorphous areas of the bottle, including the finish and neck. Moderate storage temperature should be maintained to ensure consistent bottle dimensions and properties.

To help protect PET bottles from contamination, the storage area should be kept clean, dry and dust, odor, insect, and rodent-free. Additionally, the storage area should be approved for food storage. PET bottles should not be stored in direct sunlight, and aromatic materials such as spices, solvents, ink, cleaning supplies and disinfectants should not be stored in the same area.

When empty PET bottles are shipped to or through areas where the outdoor temperature may exceed 90°/32°C, it is recommended that a temperature-controlled container or trailer capable of maintaining a temperature of 80°F/27°C or lower be used.

Polypropylene (PP) Closures

Closures are also an important part of your cannabis packaging. The storage time of unlined closures should be minimized. As with bottles, a strict first-in-first-out inventory should be maintained.

Elevated storage temperatures allow unlined PP closures to further shrink. Harsh conditions can actually cause severe distortion. The degree of distortion and shrinkage depends on the closure design and storage conditions. High storage temperatures accelerate the aging process of the closure; moderate storage temperatures should be provided to ensure consistent closure dimensions and properties. Like HDPE bottles, this type of closure can withstand temperatures of 110°F/43°C for brief periods.

When stored in humid conditions, pay attention to the integrity of the cardboard cartons the closures are stored in. The use of stretch wrap and/or controlling warehouse conditions will help alleviate damage to the cardboard. Just like their bottle counterparts, PP unlined closures should be kept as clean as possible and it is best to store in original sealed cartons.

Proper Storage Supports Your Bottom Line

Storing plastic bottles improperly can reduce the integrity of the plastic, therefore making it unsuitable to contain your cannabis product. Poor storage can also be detrimental to filling lines and cause production problems, which can result in reduced efficiencies and added costs.

Product recalls can also be a by-product of poor storage due to increased chances of product contamination. If plastic bottles and closures are not properly stored before using, distortion and shrinkage can damage the bottle labels used to identify your product. Shrinkage of your plastic closures result in a poor sealing surface which is detrimental to the freshness of your cannabis product. All of these side-effects can be very damaging to your brand image, from which it’s hard to recover. Consumers will lose confidence in your brand – leading to reduced profits for your bottom line.

Whether your cannabis business is in the early start-up stages or established with loyal customers, properly storing your plastic packaging will help protect your brand, decrease the risk of product recalls and increase your profitability.

Sustainable Plastic Packaging Options for Your Cannabis Products

By Danielle Antos
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A large part of your company’s brand image depends on the packaging that you use for your cannabis product. The product packaging creates a critical first impression in a potential customer’s mind because it is the first thing they see. While the primary function of any cannabis packaging is to contain, protect and identify your products, it is a reflection of your company in the eyes of the consumer.

For all types of businesses across the US, sustainability has become an important component for success. It is increasingly common for companies to include sustainability efforts in their strategic plan. Are you including a sustainability component in your cannabis business’ growth plan? Are your packaging suppliers also taking sustainability seriously? More and more, consumers are eager to purchase cannabis products that are packaged thoughtfully, with the environment in mind. If you are using or thinking about using plastic bottles and closures for your cannabis products, you now have options that are produced from sustainable and/or renewable resources. Incorporating sustainable elements into your cannabis packaging may not only be good for the environment, but it may also be good for your brand.

Consider Alternative Resins

Traditionally, polyethylene produced from fossil fuels (such as oil or natural gas), has been used to manufacture HDPE (high density polyethylene) bottles and closures. However, polyethylene produced from ethanol made from sustainable sources like sugarcane (commonly known as Bioresin) are becoming more common.

HDPE bottles produced with Bioresin.

Unlike fossil fuel resources which are finite, sustainable resources like sugarcane are renewable – plants can be grown every year. For instance, a benefit of sugarcane is that it captures and fixes carbon dioxide from the atmosphere every growth cycle. As a result, production of ethanol-based polyethylene contributes to the reduction of greenhouse gas emissions when compared to conventional polyethylene made from fossil fuels, while still exhibiting the same chemical and physical properties as conventional polyethylene. Although polyethylene made from sugarcane is not biodegradable, it can be recycled.

Switching to a plastic bottle that is made from ethanol derived from renewable resources is a great way for cannabis companies to take positive climate change action and help reduce their carbon footprint.

For instance, for every one ton of Bioresin used, approximately 3.1 tons of carbon dioxide is captured from the atmosphere on a cradle-to-gate basis. Changing from a petrochemical-derived polyethylene bottle to a bottle using resins made from renewable resources can be as seamless as approving an alternate material – the bottles look the same. Ensure that your plastic bottle manufacturer is using raw materials that pass FDA and ASTM tests. This is one way to help reverse the trend of global warming due to increasing levels of carbon dioxide (CO2) in our atmosphere.

PET bottles derived from 100% recycled post-consumer material.

Another option is to use bottles manufactured with recycled PET (polyethylene terephthalate). Consisting of resin derived from 100% recycled post-consumer material, it can be used over and over. This is an excellent choice because it helps keep plastic waste to a minimum. Regardless of the resin you select, look for one that is FDA approved for food contact.

Consider Alternative Manufacturing Processes

Flame Treatment Elimination

When talking about plastic bottle manufacturing, an easy solution to saving fossil fuels is eliminating the flame treatment in the manufacturing process. Historically, this process was required to allow some water-based adhesives, inks, and other coatings to bond with HDPE (high density polyethylene) and PP (polypropylene) bottles. Today, pressure-sensitive and shrink labels make this process unnecessary. Opt out and conserve natural gas. For instance, for every 5 million bottles not flamed approximately 3 metric tons of CO2is eliminated. This is an easy way to reduce the carbon footprint. Ask your cannabis packaging manufacturer if eliminating this process is an option.

Source Reduction (Right-Weighting)

When considering what type and style of bottle you want to use for your cannabis product, keep in mind that the same bottle may be able to be manufactured with less plastic. A bottle with excess plastic may be unnecessary and can result in wasted plastic or added costs. On the other hand, a bottle with too little plastic may be too thin to hold up to filling lines or may deform after product is filled. Why use a bottle that has more plastic than you actually need for your product when a lesser option may be available? This could save you money, avoid problems on your filling lines, and help you save on your bottom line. In addition, this will also help limit the amount of natural resources being used in production.

Convert to Plastic Pallets

If you are purchasing bottles in large quantities and your supplier ships on pallets, consider asking about plastic pallets. Reusable plastic pallets last longer than wood pallets, eliminate pallet moisture and improve safety in handling. They also reduce the use of raw materials in the pallet manufacturing process (natural gas, metal, forests, etc.) aiding in efforts towards Zero Net Deforestation. And, returnable plastic pallets provide savings over the long term.

If You Don’t Know, Ask Your Cannabis Packaging Partner

It is important to find out if your plastic packaging partner offers alternative resins that are produced from renewable sources or recycled plastics. It is also prudent to partner with a company that is concerned about the impact their business has on the planet. Are they committed to sustainability? And, are they eliminating processes that negatively affect their carbon footprint? What services can they provide that help you do your part?

When you opt to use sustainably produced plastic bottles and closures for your cannabis products, you take an important step to help ensure a viable future for the planet. In a competitive market, this can improve the customer’s impression of your brand, increase consumer confidence and help grow your bottom line. Not only will you appeal to the ever-growing number of consumers who are environmentally-conscience, you will rest easy knowing that your company is taking action to ensure a sustainable future.