Imballaggi per bevande - PET vs. alluminio vs. cartone: La verità ambientale
The Packaging Dilemma: There Is No Perfect Solution
Scroll through social media and you'll see passionate debates: "Aluminum is better!" "No, carton is!" "Glass is the only sustainable option!" But here's the uncomfortable truth: there is no perfect beverage packaging material. Each has environmental trade-offs.
Let's examine the science, recycling data, and lifecycle analyses to understand what you're really choosing when you buy a beverage.
The Three Main Contenders
PET PLASTIC (Polyethylene Terephthalate)
Found in: Most bottled water, soda, sports drinks (including Akvile bottles)
Environmental Profile:
✅ PROS:
- Lightweight: Reduces transportation emissions (up to 40% less fuel than glass)
- Widely recyclable: Accepted in virtually all recycling programs
- Lower production energy: Requires less energy to manufacture than aluminum or glass
- Durable: Doesn't break, reducing waste from damaged products
- Actual recycling rate in EU: 60-70% collected and recycled
✅ When recycled: Can be turned into new bottles (bottle-to-bottle), clothing fibers, carpeting, industrial materials
❌ CONS:
- Made from petroleum: Non-renewable fossil fuel resource
- Ocean pollution: When not properly disposed, contributes to marine plastic
- Degradation time: Takes 450+ years to decompose in landfills
- Microplastic concern: Can shed microplastics over time
- Downcycling: Often recycled into lower-quality products, not infinitely recyclable
CRITICAL FACTS:
- According to PETCORE Europe, PET bottle collection rate in EU reached 64.4% in 2021
- When properly recycled, PET bottles can be recycled multiple times (but quality degrades)
- rPET (recycled PET) requires 79% less energy than virgin PET production
ALUMINUM CANS
Found in: Sodas, energy drinks, some sparkling waters (including Voss Flavoured, Josephine)
Environmental Profile:
✅ PROS:
- Infinitely recyclable: Can be recycled endlessly without quality loss
- High recycling rate: 74% recycling rate in EU (2021)
- Fast recycling: Recycled aluminum can be back on shelf in 60 days
- Energy savings when recycled: Recycling aluminum saves 95% of energy needed for virgin production
- Doesn't degrade: Maintains integrity indefinitely
- Best for circular economy: True closed-loop recycling
❌ CONS:
- Mining impact: Bauxite mining (aluminum ore) causes significant environmental damage
- Energy-intensive production: Virgin aluminum requires enormous energy (primarily from coal)
- Water usage: Aluminum production uses massive amounts of water
- Rare earth resource: Bauxite is finite and geographically concentrated
- Heavy: More fuel needed for transportation than PET
- Lining required: Most cans have plastic/resin liner (BPA-free now, but still present)
CRITICAL FACTS:
- According to Metal Packaging Europe, producing 1kg of virgin aluminum requires 15-16 kWh of electricity
- Recycling 1kg of aluminum saves 14 kWh (equivalent to running laptop for 100 hours)
- However: Initial production footprint is massive compared to PET
- Aluminum production accounts for ~2% of global CO2 emissions
CARTON (Tetra Pak style)
Found in: Some juices, milk alternatives, coconut water, some functional beverages
Environmental Profile:
✅ PROS:
- Renewable materials: 70-75% paper/cardboard (from trees)
- Lightweight: Less transportation emissions than glass or aluminum
- Lower carbon footprint: Generally lower CO2 emissions in production vs aluminum
- Aseptic technology: No refrigeration needed (for some products), saving energy
❌ CONS:
- Composite material: Made of paper (75%), plastic (20%), and aluminum (5%)
- Difficult to recycle: Multi-material design requires specialized facilities
- Low actual recycling rate: Only 26% recycled in EU (much lower than claimed)
- Deforestation concerns: Paper production requires trees (though FSC certification helps)
- Not truly sustainable: Despite "plant-based" marketing, contains plastic and aluminum
CRITICAL FACTS:
- Tetra Pak claims high recyclability, but actual recycling rates are much lower
- Requires specialized recycling facilities to separate layers
- Many municipalities don't accept cartons or separate them incorrectly
- The Alliance for Beverage Cartons and the Environment (ACE) reports EU recycling rate of only 50% for beverage cartons (but independent verification shows closer to 26%)
The Recycling Reality Check
Here's what actually happens to beverage packaging in Europe:
|
Material |
Collection Rate |
Actual Recycling Rate |
What Happens to Rest |
|
Aluminum |
~74% |
~74% |
26% to landfill/incineration |
|
PET Plastic |
~64% |
~60% |
40% to landfill/ocean/incineration |
|
Glass |
~76% |
~74% |
26% to landfill |
|
Beverage Cartons |
~50% claimed |
~26% actual |
74% to landfill/incineration |
Sources: PETCORE Europe, Metal Packaging Europe, FEVE (European Container Glass Federation), ACE reports
The uncomfortable truth: Even with best recycling systems, 26-40% of packaging still ends up as waste.
Lifecycle Analysis: Which Is "Greenest"?
According to lifecycle assessment studies:
Best Case Scenario: Everything Gets Recycled
- Aluminum (infinite recyclability)
- Glass (infinite recyclability, but heavy transport emissions)
- PET (multiple recycling cycles possible)
- Carton (difficult to recycle, eventually degraded)
Worst Case Scenario: Nothing Gets Recycled
- PET (lowest production emissions, but persists for centuries)
- Carton (biodegradable paper component, but plastic/aluminum remain)
- Glass (inert, doesn't degrade, but doesn't pollute chemically)
- Aluminum (massive production footprint wasted)
Real World Scenario: Current Recycling Rates
It depends on:
- Local recycling infrastructure
- Transportation distances
- Energy grid carbon intensity
- Consumer disposal behavior
General consensus from environmental scientists:
- For beverages consumed locally, PET and aluminum are roughly equivalent when considering current EU recycling rates
- For long-distance shipping, PET wins due to weight
- For true circular economy, aluminum wins (if recycling rate stays high)
- Cartons underperform due to low actual recycling rates despite marketing
What About Glass?
Glass is often cited as most sustainable, but reality is complex:
✅ PROS:
- Infinitely recyclable without quality loss
- Inert (doesn't leach chemicals)
- Made from abundant materials (sand)
- Premium feel
❌ CONS:
- Extremely heavy: Massive transportation emissions (5-10x weight of PET for same volume)
- Energy-intensive: High temperatures needed for production and recycling
- Breakage: 5-10% loss during handling/transport becomes waste
- Return system needed: Requires deposit schemes to be truly sustainable
Bottom line on glass: Best when consumed very locally with strong return systems. Not ideal for international distribution.
The Hidden Factor: Fill Efficiency
Larger formats are more sustainable regardless of material:
- 1.5L PET bottle uses ~20% less plastic per liter than 600ml bottles
- Family packs reduce packaging waste by 30-50% vs individual servings
- Concentrated products (dilute at home) slash transportation emissions
This is why Akvile 1.5L format exists – same natural mineral water, 40% less packaging per liter.
What Can Brands Actually Do?
Good practices we look for:
✅ Use rPET (recycled PET) – 79% less energy than virgin plastic
✅ Offer larger formats – family sizes reduce packaging per liter
✅ Minimize packaging weight – lightweighting reduces transport emissions
✅ Clear recycling instructions – help consumers recycle correctly
✅ Support deposit return schemes – dramatically increase recycling rates
✅ Avoid over-packaging – no unnecessary secondary packaging
✅ Local production when possible – reduce transportation
❌ Greenwashing to avoid:
- "100% recyclable" (technically true but meaningless if infrastructure doesn't exist)
- "Plant-based plastic" (still plastic, still fossil fuel derived in most cases)
- "Eco-friendly" without specifics
- Carbon-neutral claims without transparent offsetting details
The Consumer Impact: What You Can Do
Your choices matter more than you think:
- Choose Larger Formats
- 1.5L bottle > three 500ml bottles (30-40% less packaging per liter)
- Family packs > individual servings
- Actually Recycle
- Rinse containers
- Remove caps/lids (different plastic type)
- Follow local guidelines
- Don't "wishcycle" (putting non-recyclables in recycling hoping they'll figure it out—they won't)
- Support Brands Using rPET
- rPET (recycled PET) creates demand for recycled materials
- This makes recycling economically viable
- Closes the loop
- Consider Total Impact
- Local product in plastic < Imported product in aluminum (when considering transport)
- Larger format in PET > Individual cans (less total packaging)
- Reusable Options When Possible
- Refillable bottles for home
- But don't shame yourself for buying packaged beverages when needed—we're all human
The NoBullshitDrinks Position
We don't greenwash. Here's our honest assessment:
Why we stock products in PET:
- ✅ Lightweight – Lower transport emissions from Lithuania/Norway to customers
- ✅ Widely recyclable – 64% collection rate in EU, better than cartons
- ✅ Practical – Doesn't break, safe for families and outdoor use
- ✅ Lower energy – Less production energy than aluminum or glass
- ✅ Larger formats available – 1.5L family size reduces packaging per liter
Why we stock products in aluminum:
- ✅ Infinite recyclability – True circular economy potential
- ✅ High EU recycling rate – 74% actually recycled
- ✅ Premium experience – Some products (Voss, Josephine) use cans
- ✅ Portable format – 330ml cans for on-the-go
What we wish existed:
- Universal deposit return schemes (increases recycling to 90%+)
- Mandatory rPET content in all bottles
- Standardized packaging for true circular economy
- Better infrastructure for carton recycling
The Bottom Line
What science shows:
- No perfect packaging – all have environmental trade-offs
- PET and aluminum are roughly comparable at current EU recycling rates
- Larger formats are better regardless of material
- Actual recycling matters more than theoretical recyclability
- Cartons underperform despite "eco-friendly" marketing
The honest truth: The most sustainable drink is tap water in a reusable bottle. But we're realistic—people want variety, convenience, and functional benefits.
Our approach: Stock products in packaging that:
- Can actually be recycled in existing infrastructure
- Minimizes weight (transport emissions)
- Offers larger formats (less packaging per liter)
- Comes from brands investing in sustainability
And always:
- No greenwashing
- Clear recycling instructions
- Honest about trade-offs
- Supporting deposit return schemes
Want to make a sustainable choice?
- Choose larger formats (1.5L > 600ml > cans for same product)
- Buy what you'll actually consume (food waste > packaging waste)
- Recycle properly
- Don't let perfect be the enemy of good
Riferimenti:
- PETCORE Europe - PET Collection & Recycling Statistics 2021
- Metal Packaging Europe - Aluminum Recycling Report 2021
- FEVE (European Container Glass Federation) - Glass Recycling Data
- Alliance for Beverage Cartons and the Environment (ACE) - Recycling Reports
- Environmental Protection Agency (EPA) - Packaging Lifecycle Analyses
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