Reasons for Aluminum Interior in Standard Coffee Packaging

When you pick up a package of coffee at the store, you may have noticed that the inner lining is often made of aluminum. Have you ever wondered why? The choice of aluminum for coffee packaging serves several important purposes, from preserving freshness to protecting the quality of the coffee beans. In this article, we will explore the reasons behind the widespread use of aluminum as an inner liner material in standard coffee packaging.

Oxygen Barrier

One of the primary reasons for using aluminum as an inner liner material is its exceptional barrier properties. Oxygen is one of the biggest enemies of coffee freshness, causing oxidation and degradation of flavor compounds. Aluminum provides an excellent barrier to oxygen, preventing it from entering the package. This helps maintain the quality and freshness of the coffee beans for longer.

Light Protection

Another benefit of aluminum is its ability to block light. Exposure to light, especially sunlight, can be detrimental to the taste and aroma of coffee. In particular, ultraviolet (UV) rays can accelerate the breakdown of certain organic compounds in coffee, resulting in a loss of flavor and aroma. The aluminum lining acts as a shield, preventing light from reaching the coffee beans and preserving their sensory attributes.

Moisture Barrier

Moisture is another factor that can affect coffee quality. Excessive moisture can cause the beans to lose their desirable flavors and become stale. Aluminum acts as a moisture barrier, preventing external moisture from entering the package and affecting the coffee beans. This helps maintain the optimal moisture content of the beans and keeps them fresh for longer.

Protection from External Odors

Coffee is highly susceptible to picking up odors from the environment. If the packaging material does not provide an effective barrier against external odors, the coffee beans can acquire off-flavors and aromas. Aluminum forms a robust barrier that prevents the intrusion of external odors and preserves the true characteristics of the coffee.

Shelf Stability

Aluminum is a durable and flexible material that contributes to the overall stability of the coffee package. It offers a high level of protection against physical damage, such as punctures or tears, which can compromise the integrity of the package and lead to a loss of freshness. The strength of aluminum ensures that the coffee remains well protected throughout its shelf life.

The Impact of Aluminum Lining on the Recyclability of Coffee Packaging

The aluminum liner in coffee packaging can affect its recyclability due to the presence of multiple layers, including aluminum, plastic, and sometimes paper. The combination of these materials can make it difficult to effectively separate and recycle each component.

While aluminum is highly recyclable, not all recycling facilities can handle the complexity of multi-layer coffee packaging. As a result, coffee packaging with aluminum liners may not be accepted in certain recycling programs or regions.

To improve recyclability, manufacturers are exploring alternative materials and designs. Mono-material packaging made from a single material, such as aluminum or plastic, is being developed to simplify the recycling process.

It’s important for consumers to be aware of proper waste management practices. While recycling may not be widely available for aluminum-lined coffee packaging, responsible disposal can still minimize environmental impact. Checking local recycling policies and facilities can provide guidance on the best disposal methods.

Efforts are underway to find more recyclable packaging solutions, but in the meantime, responsible disposal practices can help reduce waste.


The choice of aluminum as an inner liner material in standard coffee packaging is driven by its excellent barrier properties against oxygen, light, moisture and external odors. These properties help preserve the freshness, flavor and aroma of the coffee beans, ensuring a quality product for consumers. So the next time you pick up a package of coffee, you can appreciate the role aluminum plays in protecting that delicious cup of joe you’re about to enjoy.


Why of the-shelf-coffee packages are aluminum from the inside?

Standard coffee packaging often has an aluminum liner on the inside for several reasons. First, aluminum provides an excellent barrier to oxygen, which is a major contributor to coffee spoilage. By preventing oxygen from entering the package, the aluminum liner helps preserve the freshness and quality of the coffee beans. Second, aluminum effectively blocks light, including harmful UV rays. This protection ensures that the coffee beans are shielded from light exposure, which can lead to flavor degradation. In addition, the aluminum liner acts as a moisture barrier, preventing external moisture from entering the package and affecting the quality of the coffee beans. Aluminum also provides durability and protection against physical damage, ensuring the stability of the package throughout its shelf life. Overall, the use of aluminum liners in standard coffee packaging helps maintain the freshness, taste and aroma of the coffee for a longer period of time.

Does coffee contain Aluminium?

Coffee does not naturally contain significant amounts of aluminum. However, due to environmental factors and processing methods, trace amounts of aluminum may be found in coffee. These trace amounts of aluminum are generally considered safe for consumption and are unlikely to cause any significant health effects.

What type of packaging is used for coffee?

Common materials used today for coffee packages are aluminum, low density polyethylene (LDPE), polyethylene terephthalate (PET), polypropylene (PP) and paper.

What is the best packaging for coffee beans?

Airtight + one-way valve – Optimal freshness

If you need to store your coffee beans for a longer period of time, a pack with a one-way valve is the way to go. This pack allows you to pack the beans quite quickly after you’ve roasted them.

How is coffee packed?

Vacuum packaging

Already ground filter coffee is generally packed in vacuumed bags. After degassing, the ground coffee beans are shrink wrapped in foil and the bags are mechanically deprived of air, preventing any further oxidation.

Does aluminum leach into coffee?

0024 milligrams of aluminum per cup. That’s really not very much when you consider that a single antacid tablet may contain more than 200 milligrams. If you are super-cautious, stick to stainless steel. But if you follow the science, it looks like there is pretty much no risk to brewing your coffee in aluminium.

Is it safe to drink coffee from aluminum?

Brewing coffee in aluminum is perfectly safe – there is no risk of ingesting any harmful chemicals from the aluminum.

What are coffee bags called?

Coffee bags or Burlap in the US, is a woven fabric made from the skin of the jute plant. Jute is great because it is cheap, fairly soft and has long fibers used to make twine or bags.

What is the valve on coffee bags?

The degassing valve helps the coffee package maintain its shape by allowing gases to escape. Gases are emitted after roasting and continue to emit even after the coffee is packaged. If the gases are trapped inside the package, this can cause the bag or pouch to inflate or bloat.