The Problem
Your hydrogen water is escaping.
You just generated high-concentration hydrogen water. You pour it into a regular bottle - plastic, glass, even most "stainless steel" bottles with plastic-lined caps - and within minutes, you're losing the very thing you paid for.
Molecular hydrogen (H₂) is the smallest molecule in the universe. It penetrates through plastic walls, escapes through rubber gaskets, and dissipates through any non-metal barrier. In a standard bottle, you could lose the majority of dissolved hydrogen within 30-60 minutes.
Most water bottles on the market - even premium ones - use plastic components in the cap, threading, or inner lining. Every one of those contact points is a hydrogen escape route. And if they're not insulated? Your hydrogen water warms up, which accelerates hydrogen loss even further.
Hydrogen Retention
How long does H₂ stay in your water?
Not all containers are created equal.
Regular Steel Bottle2-3 hrs
The Solution
Engineered for hydrogen. Nothing else.
The H2Stash™ was designed with a single obsession: keep every molecule of hydrogen exactly where it belongs - in your water.
We eliminated plastic entirely. The body, the interior walls, and the cap are all constructed from food-grade 304 stainless steel, with a 100% food-grade silicone seal - no plastic anywhere in the design. The double-wall vacuum insulation keeps your water cold for up to 24 hours or warm for up to 12 hours, which also helps slow hydrogen dissipation by maintaining lower water temperatures.
This isn't a standard water bottle with a marketing sticker. This is purpose-built hydrogen storage.
Why 304 Stainless Steel?
Food-grade 304 stainless steel (also known as 18/8) is the gold standard for food and beverage contact surfaces. It's the same grade used in commercial brewing, pharmaceutical manufacturing, and surgical instruments.
🧪
Non-ReactiveWon't leach chemicals, flavours, or odours into your water
🛡️
Corrosion-ResistantWithstands daily use, cleaning, and temperature changes
🔒
Impermeable to H₂Dense metallic crystal structure blocks hydrogen molecules
✦
BPA-Free by NatureNo plastic to remove - there was never any to begin with
Vacuum Insulated
Temperature is part of the science.
Hydrogen stays dissolved in water longer at lower temperatures. The H2Stash's double-wall vacuum insulation isn't just a convenience feature - it's a hydrogen retention strategy.
24
hours cold
Keeps water ice-cold all day - and keeps dissolved H₂ locked in longer
12
hours warm
Perfect for tea, warm lemon water, or any hot beverage on the go
The Detail Everyone Else Ignores
The cap matters more than you think.
Here's what most "stainless steel" bottles won't tell you: the cap is almost always lined with plastic or fitted with cheap rubber gaskets. Your water touches plastic every time you take a sip or seal the bottle.
The H2Stash™ cap is stainless steel with a 100% food-grade silicone seal - no plastic whatsoever. Silicone is not plastic. It's an inert, non-toxic, medical-grade material that won't leach chemicals into your water. It provides a superior airtight seal while keeping your hydrogen water completely free from plastic contact.
How It Compares
Not all bottles are built for hydrogen.
|
Plastic |
Steel |
H2Stash™ |
| Plastic-Free |
✕ |
Cap plastic |
✓ |
| Blocks H₂ |
✕ |
Body only |
✓ |
| Vacuum Insulated |
✕ |
Some |
✓ |
| 304 Steel |
✕ |
✓ |
✓ |
| Zero BPA |
✕ |
Cap issue |
✓ |
| H₂ Retention |
30-60m |
1-2 hrs |
6+ hrs |
Key Features
Every detail, considered.
🔩
100% Plastic-Free
Body, interior, and cap are food-grade 304 stainless steel with a silicone seal. Zero plastic contact with your water.
❄️
Vacuum Insulated
Double-wall vacuum insulation keeps water cold up to 24 hours, warm up to 12 hours - and slows hydrogen loss.
🫧
Hydrogen Retention
Impermeable stainless steel walls + airtight silicone seal keep dissolved H₂ in your water far longer than alternatives.
⚗️
Food-Grade 304 Steel
The same 18/8 steel used in surgical instruments, commercial brewing, and pharmaceutical equipment.
🧴
Chemical-Free by Design
No BPA, no phthalates, no microplastics. Not because we removed them - because there was never any plastic.
♾️
Built to Last
Stainless steel doesn't crack, shatter, or degrade over time. Easy to clean with no crevices that harbour bacteria.
Perfect For
Who is the H2Stash™ for?
⚡
Hydrogen Water Enthusiasts
🏋️
Athletes & Biohackers
Prepare hydrogen water in advance and bring it to the gym, the office, or on the road - ready when you are.
🌿
Health-Conscious Consumers
Eliminating plastic from your daily routine - not just BPA, but all plastics. This bottle is plastic-free by design.
🔍
Anyone Tired of Greenwashing
You want a bottle that's actually what it claims to be - all the way through, with nothing hidden.
Specifications
The full picture.
| Capacity |
1 Litre (33.8 fl oz) |
| Body |
Food-Grade 304 Stainless Steel |
| Cap |
Food-Grade 304 Stainless Steel |
| Interior |
304 Stainless Steel (uncoated) |
| Cap Seal |
100% Food-Grade Silicone |
| Insulation |
Double-Wall Vacuum |
| Cold Retention |
Up to 24 hours |
| Hot Retention |
Up to 12 hours |
| Weight |
450 g (15.9 oz) |
| Dimensions |
9.75" x 3.6" diameter |
| Plastic Parts |
None |
| BPA / Phthalates |
None |
| Colour |
Brushed Stainless Steel |
| Care |
Hand wash / dishwasher (top rack) |
| Warranty |
Ocemida Lifetime Warranty |
FAQ
Common questions, straight answers.
Why can't I just use a regular stainless steel water bottle?
Most stainless steel bottles use plastic-lined caps or cheap rubber gaskets. Your water still contacts plastic at the seal point, and hydrogen can escape through those components. The H2Stash™ uses a stainless steel cap with a food-grade silicone seal - no plastic anywhere in the design.
The cap has a silicone seal - isn't that plastic?
No. Silicone is not plastic. It's an inert, non-toxic material made from silica (sand). It's widely used in medical devices, baby products, and food-grade applications because it doesn't leach chemicals. Food-grade silicone provides a superior airtight seal and is completely safe for contact with your water.
How long does hydrogen stay in the water with this bottle?
In a sealed H2Stash™ filled to the top with minimal air space, you can expect to retain a meaningful concentration of dissolved hydrogen for 3-4 hours at room temperature, and even longer if the water is kept cold thanks to the vacuum insulation. For comparison, hydrogen water left in an open cup loses most of its H₂ within minutes, and plastic bottles lose it within 30-60 minutes. The key factors are minimizing headspace (fill it up), sealing it tightly, and keeping it cold. For maximum potency, drink your hydrogen water as soon as possible after generating it - the H2Stash™ buys you significantly more time, but fresher is always better.
How long does it keep water cold or warm?
The double-wall vacuum insulation keeps cold water cold for up to 24 hours and warm water warm for up to 12 hours.
Can I use this bottle for regular water or other beverages?
Absolutely. The H2Stash™ works beautifully as a premium daily water bottle. It's ideal for anyone who wants to eliminate plastic from their hydration routine, whether or not they drink hydrogen water.
Is it dishwasher safe?
Yes. The stainless steel and silicone construction is dishwasher safe (top rack recommended). No plastic parts to warp or degrade.
Does Ocemida sell hydrogen water generators too?
Yes. Ocemida Hydrogen Water Bottles generate hydrogen-rich water using SPE/PEM electrolysis technology. The H2Stash™ is the perfect companion - generate with Ocemida, store in the Stash.
Complete Your System
Generate with Ocemida.
Store in H2Stash™.
Pair the H2Stash™ with any Ocemida hydrogen water generator for the complete hydrogen water system - from generation to storage, with zero plastic contact at any step.
🛡️ Backed by Ocemida's Lifetime Warranty
ENVÍO GRATIS A PARTIR DE $80
LIFETIME WARRANTY
