The Ultimate Guide To Insulated Food Jars

May 26, 2025

 

Whether you're packing a warm lunch for school, a chilled snack for work, or a hearty meal for a weekend adventure, insulated food jars are a game-changer.At BentoBliss, we offer a curated collection of high-quality insulated food jars designed to keep your meals at the perfect temperature for hours.

WHAT CAN YOU PACK IN AN INSULATED FOOD JAR?

Insulated food jars are incredibly versatile, making them perfect for a variety of meals:

Hot Foods:

  • Soups and stews
  • Pasta dishes
  • Curries and rice
  • Oatmeal or porridge
  • Grilled vegetables

Cold Foods:

  • Yogurt with granola
  • Fresh fruit salads
  • Chilled pasta salads
  • Smoothies
  • Cold quinoa or couscous dishes

These jars are ideal for school lunches, office meals, picnics, or any on-the-go dining.

HOW TO PRE-HEAT YOUR INSULATED FOOD JAR?

To maximize the heat retention of your insulated food jar:

  1. Boil Water: Fill the jar with boiling water.

  2. Seal and Wait: Close the lid tightly and let it sit for about 5 minutes.

  3. Empty and Dry: Pour out the water and quickly dry the interior.

  4. Add Hot Food: Immediately place your hot food into the jar and seal it.

This process helps maintain the food's temperature for a longer period.

EXPLORE OUR RANGE OF INSULATED FOOD JARS

BentoBliss offers a range of insulated food jars from trusted brands like B.Box, Oasis, and Bentgo. Here's a closer look at some of our top picks:

  1. Oasis Insulated Food Flask 300ml
  • Capacity: 300ml 
  • Keeps Hot: Up to 5 Hours
  • Keeps Cold: Up to 7 Hours
  • Features: Premium 18/8 stainless steel, double-wall vacuum insulation, quick-release lid, BPA-free, durable powder-coated finish.
  • Colours available: Blue, Bubblegum Pink, Lilac, Mint, Mermaid Purple & Peacock Blue
Oasis Insulated Food Jars 300ml

      2. Oasis Insulated Food Pod 470ml

  • Capacity: 470ml 
  • Keeps Hot: Up to 6 Hours
  • Keeps Cold: Up to 9 Hours
  • Features: Stainless steel construction, leak-proof design, ideal for larger meals.
  • Colours available: Lavender, Carnation, Black, Turquoise, Mint, Latte, Rockmelong, Alabaster
Oasis Insulated Food Pods 470ml

      3. Oasis Insulated Food Flask 550ml

  • Capacity: 550ml 
  • Keeps Hot: Up to 7 Hours
  • Keep Cold: Up to 10 Hours
  • Features: Integrated foldable spork, built-in carry handle, quick-release lid, premium stainless steel.
  • Colours available: Black, Latte and Olive Green
Oasis Insulated Food Flasks 550ml

      4.  B.Box Insulated Food Jar 335ml

  • Capacity: 335ml 
  • Keeps Hot: Up to 5 Hours
  • Keeps Cold: Up to 7 Hours
  • Features: Includes spork, leak-proof design, easy-grip handles, ideal for kids' lunches.
  • Colours available: Lilac Pop, Indigo Rose, Emerald Forest, Ocean Breeze, Strawberry Shake, Blue Slate
Bbox Insulated Food Jar

      5. B.Box Insulated Food Jar Mini 210ml

  • Capacity: 210ml 
  • Keeps Hot: Up to 4 Hours
  • Keeps Cold: Up to 6 Hours
  • Features: Compact size for toddlers, leak-proof, includes spork, fun designs.
  • Colours available: Bear Hugs, Friendly Fox, Blue Camo, Wild Indigo, So Bunny
Bbox insulated food jar mini

      6. Bentgo Stainless Steel Insulated Food Container 560ml

  • Capacity: 560ml 
  • Keeps Hot: Up to 6 Hours
  • Keeps Cold: Up to 6 Hours
  • Features: Wide-mouth design for easy filling and cleaning, leak-proof lid, sleek rose gold finish.
  • Colours available: Rose Gold, Black and Aqua
Bentgo Insualted Food Container 560ml

      7. Oasis Insulated Food Flask 800ml

  • Capacity: 800ml 
  • Keeps Hot: Up to 7 Hours
  • Keeps Cold: Up to 10 Hours
  • Features: Designed for hearty meals or sharing portions, this large-capacity flask is made from high-grade 18/8 stainless steel with double-wall vacuum insulation. It includes a wide mouth for easy filling and eating, a secure twist lid, and a sleek matte black finish. BPA-free and leak-proof, it’s great for adults or older kids who need more fuel during the day.
  • Colours available: Matte Black & Silver
Oasis Insulated Food Flask 800ml

FREQUENTLY ASKED QUESTIONS

Q: How do I clean my insulated food jar?
A:Handwashing is recommended to maintain the integrity of the insulation. Use warm soapy water and a soft brush to clean the interior.

Q: Can I put my insulated food jar in the dishwasher?
A:While some jars may be labeled as dishwasher-safe, handwashing is generally advised to prolong the life of the jar.

Q: How long does food stay hot or cold in these jars?
A:Depending on the model, food can stay hot for up to 7 hours and cold for up to 10 hours.

Q: Are these jars leak-proof?
A: Yes, all our insulated food jars are designed to be leak-proof when properly sealed.

Q: Are the materials used safe for food?
A:Absolutely. Our jars are made from BPA-free, lead-free materials and high-quality stainless steel.

Explore our full collection of insulated food jars to find the perfect match for your lifestyle. Click Here

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