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Should you test your packaging?

Posted On Thu 6th Jun,2019

SHOULD you TEST your packaging?

Are you thinking of Making and selling your product? Have you been making DIY natural products at home? thinking of branching out to sell your Natural products?.

This information is for you!

You should test all packaging... for more than 24 hours. You are responsible for testing the packaging you purchase. Although we test our containers with water, and use a lot of our products ourselves, you are responsible for testing the packaging with your product.

This is important as we do not know nor understand the product that the packaging is intended for. Furthermore, we do not have the facilities to test the packaging with your product or Natural recipe.

WHAT TYPES OF TESTING SHOULD BE DONE? All packaging must be subjected to the conditions that you intend the finished product to endure. In particular, please subject the packaging to the following conditions when fully filled.

  1. Test the packaging for leakage - All packaging could potentially leak, the best way to check is to make your mixture and let it sit.  Gases are often given off from mixtures and can alter the closure. For example if you are mixing Castile soap and Citric Essential oils it is not uncommon for the Gases to unscrew lids or Triggers. We have found that the mixture has to let sit and rest for at least 24hrs on the bench before applying the trigger.

  1. Note that some products and/or their ingredients attack the plastic components of the packaging, and this might reduce the sealing capacity if the packaging over a period of time.

  1. We Use plastic PET bottles and containers for Essential oils and cleaning at home because sometimes glass is just to dangerous on the tiles with Children. We suggest that every 6mths -12mths or so you check the stability of the containers, saying that we have never had a problem in our household but if you are using Essential oils such as Citric blends it is a good habit to get into. Remember PET is a fully recyclable material so into the Yellow bin.

  1. Volumetric Requirements can range because of the different requirements and product that is used.Customers will often overfill or underfill so we encourage you to check the capacity of your containers. Our volumes are only a guide.

  1. Chemical reactions between the packaging and contents. All packaging must be tested against chemical reactions. Different chemical compounds with varying concentration will have varying effects on the packaging. There is no substitute to testing the packaging against your intended use over time as some concentrations of common chemicals  can attack common plastic used in our packaging. Discoloration of product, rust and distortion of packaging is not uncommon.

  1. Activating your Roller for Essential oil bottles. Sometimes the metal roller for your essential oil bottles may feel stiff when first in use or may feel like it isn't omitting much oil. If this is the case it is a simple process of taking the roller part and with a paperclip or such item push out the metal ball from the back. Then simply place back in and rub till it moves freely.

  1. Dispensing closures and Lids Common failures.

Misters- Oil based ingredients such as thick carrier oils do not usually work well with mist sprays unless highly diluted with water or other items such as Witch hazel. At times this might not be evident until several weeks have passed. The failure can be manifested by leaking, failure to mist with the spray and dispensing without depressing the actuator.  Whilst some of these issues can be overcome Liquids with particles (solids) do not mist spray well. High viscosity oils should be used in a pump rather than a mister.

Lotion pumps- are pretty straight forward but releasing the pump before submerging in liquid is much easier. Often they can be hard to release but by placing your thumb up into the top between the thread and the clear plastic piece and holding it firmly so that it stops the top from spinning, then twist the pump to release it.

Spray triggers-  It is important that with most spray triggers, misters and pumps that the wick or tube is trimmed to size. The tube if not trimmed to sit above the bottom of the bottle it will cause it to push up and not close properly.

Spray triggers need to be screwed down completely over the thread of the bottle failure to do so will cause the bottle to leak and not work to its full potential.

At Centaur we are always open to explaining the best way to test your product so if you have a question please drop us a line.


We have a quality range of packaging products for retail use.



The Centaur Packaging website is owned and operated by Graham and Michelle Rowe Australian Business Number: 66971316719. By accessing, browsing or using this website, you agree to the terms, conditions and disclaimers herein as amended from time to time. By purchasing an item advertised on this website and/or by completing the registration process to become a member you agree to be bound by these Terms and Conditions. Centaur Packaging may amend these Terms and Conditions from time to time and any amendment will become effective immediately. Your continued use of this website after amendment constitutes an agreement to abide by and be bound by those Terms and Conditions, as amended.

Freight Options

  • OPTION 1- FLAT RATE From $15.00, Parcels are fully Trackable. Australia Wide.
  • OPTION 2- PRIORITY SHIPPING from $25.00 fully Trackable Australia wide. Insurance Extra.
  • OPTION 3-LOCAL PICK UP- You are welcome to organize your own freight or Collect from our Warehouse located in Bomaderry NSW located Between the Beautiful Berry and Nowra on the south coast.

Please Note For Large orders: Due to the bulky nature of some of our items we reserve the right to adjust the freight component. We will always advise if this is going to occur and we will always try our best to maintain competitive freight prices.

Credits & Returns

At Centaur Packaging we pride ourselves on 100% customer satisfaction. However please choose carefully. For Hygiene reasons we do not exchange nor take returns on Food service and Wellbeing products.We do not exchange or refund for change of mind purchases.
Reasons for returning items for exchange or credit will be decided case by case due to health regulations.

Goods will be returnable if they are-

  • Goods are faulty
  • Goods have been wrongly described
  • Goods are different to the product purchased on the website

Please email for an approval number and state the reason for the claim or return. At this stage we will approve or decline the return of the product, as food packaging items or damaged packaging will not be able to be returned. Postage costs will not be refunded and return postage costs will be responsibility of the customer.

Damaged Goods Policy

The Best way to make sure your goods are covered for replacement if broken or damaged is to take our our very affordable insurance.
All damaged goods should be reported by email within 24 hours of receipt of goods to enable the issuing of replacements. Details should include your order number and photos of the damage. Should this not be the case we may not be able to accept liability for damaged goods.
If a product is damaged under the value of $10.00 Centaur Packaging will reserve the right to offer a refund rather than replace the goods.

Centaur Packaging Images

We always want to support our customers and if you would like to use our images on your website, please submit a request through the Contact Us page
By using our images, you agree that all photos remain the property of Graham and Michelle Rowe T/A Centaur Packaging and we reserve the rights to request our images be removed from your website or promotional material at any time without prior notice. To this end, by using our images, you agree to immediately remove our images, logos, designs, trademarks and any other Intellectual Property or material created and owned by Graham and Michelle Rowe T/A, from your website and any other material upon request.

Office/Showroom Hours:

Monday - Friday
8am-4 pm


3 Concorde Way
NSW 2541 NSW