Any questions?

The CO₂-rich Modified Atmosphere allows you to secure your seeds for several years without using chemical treatment or cold storage. Cold germination tests (conducted on several species of major crops) show that germination is stabilized.

CO₂ is a neutral gas. It does not chemically react with the preserved product and therefore has no direct impact on its physicochemical and organoleptic properties.

The Nox process allows for the creation of a Modified Atmosphere with a high CO₂ content, resulting in the total mortality of insects.

Following conditioning, adult insects in free form are eliminated after 48 hours. It takes up to 21 days for the total mortality of hidden forms and earlier stages (eggs/nymphs/larvae) possibly nestled inside the grains.

The speed of insect elimination depends on several parameters (type of insect, type of grain, temperature, humidity, CO₂ rate).

The elimination of hidden forms is made possible by the diffusion of CO₂ throughout the enclosure and inside the grain. Without CO₂ injection, the anti-insect action is not possible.

If you're using Nox® Bags to disinsect batches that are already infested, plan an additional sorting stage to remove any dead insects left inside.

The Nox® system allows you to store your products in a Modified Atmosphere, protecting them from major risks (insects, mold, humidity, etc.) and extending their shelf life.

Two main gases can generally be used to create a modified atmosphere: nitrogen (N₂) and carbon dioxide (CO₂). Each of these two gases has its own specific preservation characteristics.

Nox is a registered trademark and the Nox® process is protected by an international patent.

You can store all types of grains, food seeds, and seeds.

However, we recommend:

• not inserting raw product directly from the field.
• bringing your product to the appropriate temperature and humidity standards before packaging.

The Nox process consists of five steps: inflating the Nox® Big Bag, filling, closing the inner bag by heat sealing, extracting the internal air, and then injecting CO₂. 

You will find all the elements to start quickly and efficiently on our support page.

Nox® Big Bags have been designed to be hermetically sealed, and feature a system of non-return air valves, enabling both suction (of air) and injection (carbon dioxide/nitrogen).

Nox® Big Bags consist of two independent bags. The outer bag ensures the Nox® Big Bags' strength and stability, while the heat-sealable inner bag ensures hermeticity.

Nox® Big Bags feature four lifting points, a large filling port and a bottom-welded emptying port.

Nox® Big Bags can be reused several times (safety factor 6:1).

However, if the inner casing is punctured, they lose their original hermetic preservation function.

You can use Nox® Big Bags to store flour in an airtight environment.

However, we do not recommend to store flour under CO₂ in Nox® Big Bags: this is because the gas cannot diffuse inside the flour volume (no free space between grains).

As a result, Nox® Big Bags cannot be used for disinfecting flour and powders, but can be used for hermetic storage.

The Nox® Big Bags should be stored away from sunlight and weather.

Since the product is hermetically sealed, it emits less odor and is therefore less detectable by rodents. However, be careful, the bag remains vulnerable to rodent attacks.

We do not recommend stacking the Nox® Big Bags as there is a risk of tearing the inner layer and breaking the seal, but rather using rigid structures like racks.

No, the Nox® Big Bags can still be pierced and rendered unusable by rodents. 

However, in practice, the airtight bag significantly reduces the risk of attack by containing the smell of the grain. 

Be careful not to pour grain between the two layers.

Always close the inlet spout of the outer layer using the ties provided for this purpose.

A rodent control plan for the storage area is still necessary.

If the hermetic inner layer bag is kept intact, the Nox® Big Bags can be reused multiple times. For reuse:

1. Blow out the inside of the Nox® Big Bag.

2. Neatly and horizontally cut the discharge spout, then heat-seal it.

3. Firmly reattach the two envelopes at the bottom using the strap.

Regularly measure the CO₂ gas level to ensure there are no leaks.

It takes between 5 and 10 minutes of conditioning per Nox® Big Bag (excluding filling).

A 10 kg bottle of CO₂ will allow you to package approximately 10 Nox® Big Bags (estimate about 1 kg of CO₂ per Nox® Big Bag packaged). 

However, this figure can vary significantly depending on the type of product being packaged. 

The exact quantities of CO₂ to be added are indicated on the filling calculator.

You can store your products in Nox® Big Bags for several years, provided that the Modified Atmosphere is stabilized (and maintained) over the period and that the product is healthy at the time of bagging.

It is therefore necessary to regularly monitor the gas level inside the Nox® Big Bags.

Yes absolutely, the product to be conditioned must be returned to standard temperature and humidity conditions.

For optimal Nox packaging conditions and experience, you will need the following equipment:  

• Nox® Big Bags  
• Food-grade CO₂ (approximately 1 kg of CO₂ per Nox® Big Bag)  
• Inflation and aspiration device (blower and vacuumizer)
• Heat sealing system  
• Gas injection system  
• CO₂ level analyzer  
• Portable CO₂ level warning device (for operator protection)  
• Suitable filling hopper with a circular and smooth chute (to avoid damaging the hermetic inner lining)

Yes, the transport of Nox® Big Bags in CO₂ is authorized.

Take care to visibly identify packaging under CO₂ so that loading and unloading operators can take the necessary precautions.

The safety factor of a big bag is a coefficient that indicates the bag's mechanical strength in relation to its nominal load. It represents how many times a big bag can support its maximum designed load before breaking, under standardized test conditions.

🔍 Definition

Factor of safety = Breaking load / Rated working load

For example: a 1,000 kg big bag with a safety factor of 5:1 has been tested to withstand 5,000 kg before breaking.

💡 Reference standards

ISO 21898 or the European equivalent defines safety requirements for big bags:

• 5:1: standard single-use (most common in agriculture and food industry)
• 6:1: reusable use (requires checks between uses)
• 8:1 : UN-certified for transport of hazardous materials

Nox® Big Bags have a safety factor of 6:1.

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To condition in Nox, you need to add about 1 kg of CO₂ per Nox® Big Bags.

But this is a strong approximation. The exact amount of CO₂ to be added depends on the type of product to be stored and the type of enclosure used. For that you can use our in-house developed online calculator.

Find out more information about gaz providers, gaz types at our CO₂ supply page.

We work primarily directly to ensure the best possible support for our users. We can ship and deliver worldwide.

We have established a network of Nox Approved Conditioners. Upon request, we will connect you with the partner in your area.

You are a Nox user and are satisfied with the solution? Talk about it and refer your acquaintances!

You will receive 10% of the amount of their first order in Nox gift vouchers.

Once the order has been paid for, you will receive the equipment at the delivery address you provided. Delivery times may vary depending on the delivery area and time of year.

CO₂ supplies may take longer to deliver. If you do not yet have a supplier, we recommend that you place your order at least 15 working days in advance (for direct delivery to your site or for collection from a warehouse).

To help you get started with the Nox system, we offer equipment rental (for the moment this offer is only applicable in mainland France only).

Please note that the return of the equipment is of your responsibility and initiative.

In case of non-return or damage to the equipment or part of the equipment, non-return fees will be charged to you, corresponding to the catalog price of the equipment in effect on the date of the order.

No, if you take certain precautions.

Nitrogen and CO₂ are gases naturally present in the air we breathe daily (78.08% and 0.04%, respectively). They are also already widely used in the food industry for the preservation of food in small packaging (bags, trays, carbonated drinks, etc.).

However, a too high concentration of CO₂ in the air we breathe leads to a loss of consciousness in a few seconds and then asphyxiation. 

• The Nox packaging process must be done in large and ventilated areas. CO₂ must be handled in large and airy rooms.
• The operator must be equipped with an audible CO₂ level warning device.
• The packaged Nox® Big Bags must then carry a clear distinctive sign.

For more information on safety, please refer to our safety sheet.

Yes, Modified Atmosphere packaging (nitrogen or CO₂) is authorized for organic farming Regulation (EU) 2018/848 of the European Parliament and of the Council of 30 May 2018 and for food use.

All our bags and containers come with a food safety certificate.

No, using the Nox system does not require any special training or authorization for operators.

The same applies to handling pressurized gas cylinders and injecting CO₂ or nitrogen).

However, safety instructions and provisions relating to the use of these gases must be put in place. Recommendations or framework for regulatory use vary from country to country.