Liquid Death

Aluminum drinkware — from sleek cans to rugged flasks — has become a staple for eco-conscious consumers who want to ditch single-use plastic without sacrificing style. But like any reusable item, your favorite canned vessel needs proper maintenance to stay rust-free, dent-free, and looking sharp. Whether you're sipping Dead Billionaire sparkling water on a hike or using The Flasket for your morning iced tea, knowing how to clean and protect your aluminum gear will extend its life and keep it performing at its best. In this guide, we'll cover everything from daily cleaning routines to storage tips that prevent dents and corrosion.

Why Aluminum Drinkware Needs Special Care

Aluminum is lightweight, infinitely recyclable, and naturally resistant to rust — but it's not invincible. Unlike stainless steel, aluminum can react with acidic liquids (like citrus juices or coffee) if left sitting too long, leading to pitting or a metallic taste. It's also softer than steel, meaning it's more prone to dings and dents if dropped or knocked around. The good news? With a few simple habits, you can keep your cans and cups in pristine condition for years.

Step-by-Step Cleaning Routine for Canned Drinkware

1. Rinse Immediately After Use

The golden rule: never let liquid sit in your aluminum drinkware for hours. After finishing your beverage, give it a quick rinse with warm water. This removes residue from sugar, acid, or salt that can accelerate wear. For cans used with carbonated drinks, rinsing also prevents sticky buildup at the rim.

2. Hand Wash with Mild Soap

While some aluminum cups claim to be dishwasher-safe, hand washing is gentler on the finish and prevents water spots. Use a soft sponge and a drop of mild dish soap. Avoid abrasive scrubbers or steel wool — they'll scratch the coating and expose raw aluminum to air, which can lead to oxidation. Rinse thoroughly and dry immediately with a lint-free cloth.

3. Deep Clean for Odors or Stains

If your drinkware develops a funky smell or stubborn stains (common after storing coffee or tea), try a baking soda paste. Mix one tablespoon of baking soda with a little water to form a paste, then gently scrub the interior. Let it sit for 10 minutes before rinsing. For extra disinfecting power, use white vinegar diluted 1:1 with water — but never let vinegar sit in aluminum for more than 15 minutes, as prolonged acid exposure can eat away at the metal.

How to Prevent Rust on Canned Drinkware

Aluminum itself doesn't rust like iron, but it can develop white, powdery spots called aluminum oxide (often mistaken for rust). This happens when the protective layer — either a factory coating or anodized finish — gets compromised. Here's how to keep your gear looking fresh:

• Dry thoroughly after every wash. Moisture trapped in crevices (like the rim of a can) is the #1 cause of oxidation. Use a microfiber cloth to buff dry.
• Avoid leaving liquids in direct sunlight. Heat can accelerate chemical reactions between aluminum and acidic drinks.
• Store with the lid off. If your drinkware has a screw-on cap or lid, store it separately to allow airflow and prevent condensation buildup.
• Apply a food-safe mineral oil (optional) to the exterior of uncoated aluminum pieces once a month for extra protection against humidity.

Dent Prevention and Care Tips

Dents are the bane of aluminum drinkware — they don't affect function but can ruin the sleek aesthetic. While no container is truly dent-proof, you can reduce the risk with mindful handling:

• Use a padded carrying sleeve for cans you take on the go. Neoprene or silicone sleeves absorb impact and keep your drink cold.
• Never stack heavy items on top of your aluminum cups or flasks when storing them in a cupboard or backpack.
• If a dent does occur, fill the container with water and freeze it overnight. As the water expands, it can gently push the dent outward. (Note: This works best for shallow dents on thin-walled cans. Avoid this method on coated or painted pieces like the Exclusive Death Tee — wait, that's a shirt — but for actual drinkware, it's a solid trick.)
• Consider investing in heavier-gauge aluminum if you're prone to dropping things. The Flasket, for example, has a reinforced base that resists dents better than standard cans.

Storage Best Practices for Longevity

Where and how you store your drinkware matters just as much as cleaning. Follow these guidelines:

Storage Location	Do	Don't
Kitchen cupboard	Store upright, away from heat sources	Stack multiple cans without padding
Car or backpack	Use a padded compartment or sleeve	Leave loose among keys or tools
Outdoor gear bag	Wrap in a soft cloth after drying	Store while still damp

Common Mistakes to Avoid

1. Putting aluminum in the dishwasher. High heat and harsh detergents can strip the coating and cause pitting. Always hand wash.
2. Using bleach or chlorine-based cleaners. These chemicals react with aluminum and can cause rapid corrosion.
3. Scratching the interior with metal utensils. Use wooden or silicone tools if you need to scrape out residue.
4. Ignoring small chips or scratches. Once the protective layer is broken, moisture can seep in. Touch up with a food-grade epoxy if needed (or retire the piece).

When to Retire Your Canned Drinkware

Even with perfect care, aluminum drinkware has a finite lifespan. Look for these signs it's time to replace:

• Deep scratches that expose bare metal
• Persistent metallic taste even after cleaning
• Visible holes or cracks (rare, but possible if dented repeatedly)
• Severe oxidation that can't be scrubbed off

When you do retire a piece, remember that aluminum is 100% recyclable — drop it in the recycling bin so it can become a new can or bottle.

Final Thoughts: Keep Your Drinkware Deathless

With a few minutes of care after each use, your aluminum drinkware can stay as striking as the day you bought it. Rinse, hand wash, dry thoroughly, and store smartly — that's really all it takes. Whether you're hydrating with Dead Billionaire or toting The Flasket to the gym, your gear will thank you with years of rust-free, dent-free service.

Ready to upgrade your hydration setup? Check out The Flasket — our sleek, dent-resistant aluminum flask that's built to survive your adventures. Grab yours today and drink in style.