[Lock & Lock] Breathing Glass Containers

$52.99
   -

Share your fermented foods!

[Lock & Lock] Breathing Glass Container


In Korean banchan, there are countless vegetables that are fermented — not just kimchi.

For example, you can make Korean-style pickles by pouring seasoned soy sauce over fresh cucumbers, onions, and garlic.

But the common problem is this: when you store banchan in an opaque/solid Tupperware container, you forget about it the moment it goes into the refrigerator. Out of sight, out of mind.

That’s where these breathing glass containers shine.

Because they stand upright and are fully transparent, you can clearly see the delicious fermented vegetables you’ve prepared — making it easy to build a meal at a glance.

Each container features Lock & Lock’s patented breathing valve.

When the lid is closed, the valve automatically releases fermentation gas, allowing the vegetables to ferment slowly and at a steady pace — so they stay crispy, fresh, and full of flavor instead of becoming mushy after a week or two.

The lid is also designed with two pouring spouts, making it convenient to drain liquids for cooking or simply to access the ingredients more easily.

Plus, there is a built-in slit for a date label, so you always know exactly when you stored the banchan — no more guessing when dealing with fermented foods.

These containers are also perfect for gifting homemade fermented side dishes to friends and family. Just ask them to return the container once they finish!

Available in: 2 colors & 4 sizes

Gochujar Editor Note: These containers are not heat-resistant glass. Do NOT pour boiling liquids directly inside. Allow liquids to cool first.

Handwash only with warm water and dish soap. Do NOT sterilize with boiling water — the lids use a plastic sealing ring that may warp under high heat.

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Product Highlights

  • See your banchan at a glance — the tall, transparent design keeps fermented foods visible in the refrigerator so nothing gets forgotten.
  • Patented breathing valve — releases fermentation gases automatically for slow, steady fermentation that keeps vegetables crisp, not mushy.
  • Thoughtful lid design — dual pouring spouts for easy access to liquids/ingredients + a slit for date labels so you always know when it was stored.
  • Perfect for sharing — ideal for gifting homemade banchan to friends and family; just ask them to return the container once they’ve enjoyed it.

[LocknLock] Breathing Glass Container

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A Glass Container...That Breathes!

  • Designed with a special vent valve that releases fermentation gases, this container creates the ideal environment for fermenting foods.
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Available for 4 sizes

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1L Size

11.2 x 11.2 x 15.4cm

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1.6L Size

11.2 x 11.2 x 20.8cm

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2.2L Size

11.5 x 11.5 x 26cm

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3L Size

12.5 x 12.5 x 29cm

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So, who is this recommended for? 

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For those who want to elevate their homemade infused drinks and aged foods with even deeper, more refined flavor.

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Perfect for sharing the fermented foods you’ve made with care — with family and friends.

Share generously. Collect your container later. 😉

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CHECK POINT — Breathing Glass Container

2-HOLE

Two adjustable vent modes to control airflow during fermentation.

DATE CHECK

Includes a date label — simply write the preparation date so you always know when your batch started.

FUNCTIONAL HANDLE

Up-and-down handle design for comfortable carrying and convenience.

EASY GRIP

Designed for stable gripping - for easy opening and handling.

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The patented breathing valve releases fermentation gases, helping maintain optimal flavor.

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Gas produced during fermentation is released, while external air is blocked — allowing the food to mature even more deliciously.

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CLEANING TIP: The breathing valve is fully removable for easy cleaning.

If food gets on the breathing valve, it can be removed and washed separately.

When washing, fully disassemble the parts of the valve and clean them thoroughly.

However, for normal daily use, there’s no need to twist open or adjust the valve at all.

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Easy-grip design for comfortable handling.

Grooves along the glass body provide a firm, secure grip even when the container is full, and the lid handle makes it easy to carry securely and comfortably.

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Two Types of Pouring Holes — Designed for Easy Liquid Control

The inner cap features two different hole sizes to help you pour liquids with precision.

  • Large Hole → For fast pouring / when transferring sauces, teas, or larger volumes
  • Small Hole → For slow and controlled pouring / ideal for drinks, extracts, and concentrates
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A More Efficient Up-Down Handle

The Updown handle design lets you lift, carry, and pour comfortably with minimal effort.

It moves smoothly up and down so you can support the container securely while pouring.

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Adjustable Handle for Smarter Storage & Easy Transport

When in use, the handle can be lifted upward for a comfortable and secure grip.

When not in use, simply push the handle down to maximize space efficiency inside the refrigerator.

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Easy-to-See Date Tag for Food Storage

The handle is designed with a slot that securely holds a date label, making it easy to check when your ingredients were prepared or stored.

TIP: When storing fermented foods, fill only up to the MAX line indicated on the sticker.

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Aesthetic Design — Great for Gifting

With its soft pastel colors and trendy, minimalist design, this container makes a thoughtful and stylish gift.

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Detailed Information

Breathing Glass Jar

Materials

  • Body: Glass (Soda-lime glass)
  • Lid / Inner Cap: Polypropylene (PP)
  • Lid Packing: Polypropylene (PP)
  • Inner Cap Packing: Silicone (Silicone rubber)
  • Handle: Polypropylene (PP) / Silicone (Silicone rubber)

Country of Origin / Distributor: China/LocknLock 

Precautions

  • Do not use with the vent on the lid closed.
  • This is not heat-resistant glass. Sudden temperature changes may cause breakage.
  • (Do not pour boiling water over 60°C directly into the bottle.)
  • Always store with the lid facing upward during storage.
  • If the vent structure becomes greasy or the container is stored sideways, contents may leak.
  • Avoid storing in direct sunlight or high-temperature places. Storing in a location exposed to sunlight or heat may accelerate fermentation and cause internal pressure to rise.
  • If the vent becomes blocked by the contents, fermentation gas may accumulate and the container may not withstand the pressure.
  • When storing fermented foods, fill only up to 80% or less.
  • Do not use in microwave, oven, or air fryer, and avoid direct flames and heat sources.
  • The lid and packing may deform, so do NOT use in a dishwasher.

Customer Product Photos

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PRODUCT FAQ

Q: Can I sterilize these containers in hot water - before first use? 

No — do not sterilize the container in boiling water.

Boiling water may cause the rubber packing ring and lid to deform.Simply wash with warm water and dish soap, then rinse thoroughly.

Q: Do I need to do anything to make these containers "breathe"?

No — even when the vent lid is tightly closed, it is designed to automatically release internal gas during fermentation.

Q: I'm having trouble twisting the lid open after fermenting.. any tips? 

If the lid suddenly becomes difficult to open during use,it may be due to internal air pressure building up inside the container.

If the container was stored in the refrigerator, please fully open the vent on the lid by turning it to the left.

After that, leave the container at room temperature for a while so the pressure can naturally release — this will allow the lid to open smoothly.

Q: Can I pour boiling water directly into these glass containers? 

This is not heat-resistant glass. Please avoid pouring boiling water or liquids over 60°C directly into the container. If adding heated liquid, let it cool down first, then transfer it into the jar.

Q: Can I use this in the dishwasher? 

No. The lid and packing may deform, so do NOT use in a dishwasher.

Q: Can I use in a microwave, oven or air-fryer? 

Do not use in microwave, oven, or air fryer, and avoid direct flames and heat sources.

Where is this made?

China. Lock & Lock operates production facilities in both South Korea and China. This product is manufactured in China and distributed in Korea, and it meets the same strict Lock & Lock quality standards as products made in Korea.

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