Custom Stainless Steel Hot Cold Food Jar Insulated Leak Proof Lunch Boxes S710962

Product Features:

  • Premium 18/8 Stainless Steel Build: Crafted from food-grade 18/8 stainless steel, this insulated food jar is BPA-free, rust-resistant, and odor-proof. It holds up to daily outdoor use and regular repeated packing of hot soups, oatmeal, yogurt, and cold fruit without absorbing food smells or staining.
  • Fully Detachable, Dishwasher-Safe Lid: Every component of the lid comes apart completely for deep cleaning. No tiny hidden crevices to trap food residue or grow mold. All removable parts are dishwasher safe, cutting down the hassle of hand scrubbing after meals.
  • Built-In Air Pressure Release Valve: The integrated air valve balances internal vacuum pressure after heating or long storage. It stops the lid from locking tight and getting stuck, so you can twist it open smoothly without excessive force.
  • Double-Wall Vacuum Insulation for Hot & Cold: Advanced double-wall vacuum technology locks in temperature for hours. It keeps broths, congee and meals hot for up to 8 hours and salads, yogurt, and chilled snacks cold for up to 12 hours. The leakproof sealed structure prevents spills inside backpacks, lunch bags, or gym totes.
  • Wide Mouth & Rounded Base Design: The wide opening makes it simple to fill, scoop, and clean food with a spoon. Its smooth rounded bottom improves drop resistance to withstand knocks on the go. Curved corners leave no hard-to-reach spots for leftover food.
  • Portable Multi-Scenario Food Storage: Compact and lightweight for commuting, school lunches, hiking, camping, road trips and corporate gifting. It works equally well for hot homemade meals and cold snacks, serving as a reliable leakproof food container all year round.

Customizing Options: 

  • Size/Capacity: 9oz, 12oz, 16oz or other customized large capacity.
  • Caps/Lids
  • Logo: custom logo is workable. Logo options include: printed logo, laser engraved logo, embossed logo, etc.
  • Decorating: no coating (brushed stainless steel), spray painting, powder coating, copper plating, etc.
  • Pattern: custom pattern can be printed and can be done by various printing techniques: silk screen printing, heat transfer printing, water transfer printing, sublimation transfer, etc.
  • Packaging box: white box, custom gift box, cylinder box, eggcrate, bubble bag, etc.
Category:

Description

Product NameCustom Stainless Steel Hot Cold Food Jar Insulated Leak Proof Lunch Boxes
Model No./SKUS710962
TypeFood jar
OccasionBusiness gifts
MaterialMetal
Design StyleCLASSIC
Outdoor ActivityTOUR
Thermal Insulation PerformanceThermal insulation
Anti-corrosion CoatingEquipped
AccessoriesWITH LID
FeatureSustainable, Stocked
TypeCustom Stainless Steel Hot Cold Food Jar Insulated Leak Proof Lunch Boxes
Material304 Stainless Steel
Material of LidPP
ColorCustomized Color
Capacity9oz, 120z, 160z
UsageOutdoor, Hot and Cold Food Storage
PackingColor Box/White Box/Bubble Bag
FunctionKeeping Drink Hot Cold
LogoCustomized Logo Acceptable
OEMOEM Welcomed

Why Choose KingStar Stainless Steel Food Jar Insulated Leak Proof Lunch Boxes?

1) CE&FDA&CA65/Prop65&LFGB certified Custom Stainless Steel Hot Cold Food Jar Insulated Leak Proof Lunch Boxes, it is BPA free and durable.

2) Be Unique: With our stylish design, your business or event with Custom Stainless Steel Hot Cold Food Jar Insulated Leak Proof Lunch Boxes can be unique as you expect. Your brand will stand out and win the favor of more customers. We hope every product we make will be perfect to express your brand and help you gain more market share.

3)  Professional food container: KingStar pays great attention to quality control, We have 30 in-products quality inspectors and 5 open-box inspectors. we check each food container that will sell to all over the world.

4) KingStar respects intellectual property rights and keep confidentiality. If necessary, we’ll be more than happy to sign NDA / NNN with you to keep your OEM design secret. Click here and read more: Vacuum Insulated Food Container 101: What is It? How does It Work?

5) Specialized in manufacturing and exporting of all kinds of drinkware such as water bottles, wholesale tumblers, food containers, dog bowls, salad bowls, can coolers. KingStar owns automated and highly efficient production lines. We embrace Industry4.0 and stay competitive in the industry. Automated production makes our products lower in cost and more competitive in price.

6) We do OEM &ODM. KingStar has top professional engineers with more than 20 Years water bottle manufacturing industry experience, can help you turn your design into a unique and best-selling product.

7) We offer custom manufacturing. More about our capability and service of customization.

Custom Molding: https://www.waterbottle.tech/custom-molding/

Custom Manufacturing: https://www.waterbottle.tech/custom-manufacturing/

Custom Decorating: https://www.waterbottle.tech/custom-decorating/

Custom Logo: https://www.waterbottle.tech/custom-logo/

Custom Packaging: https://www.waterbottle.tech/custom-packaging/

Double Wall 50oz Powder Coated Insulated Stainless Steel Coffee Beer Mugs with Handle
Double Wall 50oz Powder Coated Insulated Stainless Steel Coffee Beer Mugs with Handle
Double Wall 50oz Powder Coated Insulated Stainless Steel Coffee Beer Mugs with Handle
Double Wall 50oz Powder Coated Insulated Stainless Steel Coffee Beer Mugs with Handle
Double Wall 50oz Powder Coated Insulated Stainless Steel Coffee Beer Mugs with Handle

Ideal Applications for Compact Insulated Small Food Jar

insulated food jar for baby food

Baby Food & Student Snack Retail Channels

This insulated jar is suitable for storing baby puree, porridge, fruit mash, and small side dishes for students. The wide-mouth design is convenient for filling food and scooping; the lid can be completely disassembled, so it is not easy to hide food residues, and it supports dishwasher cleaning, which meets the hygiene requirements of parents for food containers. The product is small in size and has a variety of soft matte colors. It is a very competitive single product in maternal and child stores, preschool education stores and campus retail channels.

Office & Daily Commute E-commerce SKU

The insulated food container body is slim, so it doesn’t take up too much space in backpacks, handbags, and commuter bags. The double-layer vacuum structure can keep soup and porridge warm for a long time and can also maintain the low-temperature state of yogurt, fresh fruit, and light salad. The sealed, leak-proof structure reduces the risk of leakage during commuting, which is suitable for independent stations, Amazon and social media e-commerce, and is sold to office workers.

wholesale custom food container insulated jar office workers
small capapcity insulated food jar outdoor camping

Outdoor & Day Trip Merchandising

The product is light in weight, leak-proof and reliable, and suitable for hiking, picnicking, and one-day short-distance travel scenes. Traders can combine this snack jar with water cups and outdoor tableware sets for sale. Suitable for repackaging stews, puddings, cut fresh fruits and portable meals; it is not suitable for large-capacity dinners but can be used as a supplement to the product line and form a match with large-capacity outdoor lunch boxes.

Custom Branded Corporate Promotional Gifts

Support a full set of customized services, can do laser engraving, printing, and embossed LOGO, and provide a variety of surface spraying processes and customized packaging solutions. Simple and round shape with low saturation color matching, advanced texture. It can be used as employee welfare, meeting gifts, and customer appreciation gift for enterprises, institutions and event organizers as brand event gifts.

custom food container for corporate gifts.

FAQ

FREQUENTLY ASKED QUESTIONS

Storing food in plastic containers can be safe, but it depends on the type of plastic used. Some plastics, especially those containing BPA (bisphenol A) or phthalates, can leach harmful chemicals into food, particularly when heated. To avoid this, choose food-safe, BPA-free plastic containers or switch to alternatives like glass or stainless steel, which are safer and more durable for long-term use.

Absolutely! Scrambled eggs stay warm in an insulated container for a few hours, making them a great option for a packed lunch. Ensure the eggs are cooked thoroughly and stored in a thermos that keeps food above 140°F (60°C) to avoid bacterial growth.

Yes, bacteria can grow in a thermos if food is not stored properly. Most bacteria grow rapidly between 4°C and 60°C (40°F and 140°F). If food is stored in a thermos at temperatures within this range for over 2 hours, harmful bacteria could multiply, making the food unsafe to eat. To avoid this, ensure that hot foods are packed at or above 74°C (165°F) and cold foods at or below 4°C (40°F). Additionally, moisture and food residue can breed bacteria. Always clean your thermos thoroughly immediately after use, and air-dry fully.

The length of time food stays safe in an insulated container depends on two things: the container’s quality and how hot or cold the food is when you pack it. Here’s the deal:

  • If you pack food piping hot(above 165°F/74°C) or ice-cold (below 40°F/4°C), it’ll stay safe to eat for hours.
  • With a high-quality container, hot food can stay warm for 6–12 hours, and cold food can stay chilled for 12–24 hours.

Pro tips for best results:

  1. Seal the container tightly—no leaks allowed!
  2. Prep the container first: Pre-heat it for hot meals, or chill it for cold dishes.

Always check the manufacturer’s instructions for specific time frames and ensure food stays within the safe temperature range to prevent bacterial growth.

Double-walled vacuum insulation is the most effective. This type of insulation creates a barrier between the inner and outer walls of the container, minimizing heat transfer and keeping food cold for hours. Stainless steel containers with vacuum insulation are especially effective at maintaining low temperatures and preventing food from spoiling.

The best stainless steel for food containers is typically SS304 (18/8). Known for its corrosion resistance, durability, and food-grade safety, SS304 ensures your food container is hygienic and long-lasting. It is non-toxic and resistant to high temperatures, making it a great choice for both hot and cold food storage.

Vacuum food containers can be a worthwhile investment depending on individual needs and usage patterns. Here’s a structured evaluation:

Pros:

  1. Extended Freshness: By removing oxygen, they slow oxidation and bacterial growth, prolonging the shelf life of perishables like fruits, vegetables, meats, and leftovers. Dry goods (e.g., cereals, coffee) also stay fresher by avoiding staleness.
  2. Reduced Food Waste: Ideal for meal preppers or those who buy in bulk, as longer freshness reduces spoilage, potentially offsetting the initial cost over time.
  3. Eco-Friendly: Reusable and durable, they minimize reliance on single-use plastics (e.g., wraps, bags), appealing to environmentally conscious users.
  4. Enhanced Food Safety: Limits aerobic bacteria growth, improving food safety. Some models are microwave- and dishwasher-safe for convenience.
  5. Versatility: Useful for marinating (vacuum pulls marinade into food faster), storing liquids (leak-proof seals), and portability (secure for travel).
  6. Space Efficiency: Often stackable, saving cabinet space compared to bulkier traditional containers.

Cons:

  1. Higher Cost: More expensive upfront than regular containers, though durability may justify the cost long-term.
  2. Complexity: Some require manual or electric pumps, adding steps to storage. Parts like seals or pumps may need maintenance or replacement.
  3. Food Compatibility Issues: Delicate items (e.g., soft berries) may get crushed by strong vacuum pressure. Not all containers are suitable for carbonated foods.
  4. Mixed Reviews: Effectiveness varies by brand and usage; some users find them less practical for quick, daily use.

Alternatives to Consider:

  • Reusable Silicone Bags: Cheaper, lightweight, and eco-friendly but less airtight.
  • Water Displacement Method: Low-cost for bags but not reusable.
  • Airtight Regular Containers: Affordable and simple, though less effective for long-term storage.

When They’re Worth It:

  • Frequent Meal Preppers: Reduces waste and maintains meal quality.
  • Bulk Shoppers: Extends freshness for large quantities.
  • Eco-Conscious Users: Minimizes single-use plastic.
  • Cooking Enthusiasts: Benefits from faster marinating and versatile storage.

When to Skip:

  • Quick Consumption: If you consume food within a few days, regular containers suffice.
  • Budget Constraints: Cheaper options may be adequate.
  • Low Patience: Manual pumps or maintenance may frustrate some users.

Conclusion:

Vacuum containers are valuable for those prioritizing extended freshness, reduced waste, and eco-friendliness. Assess your storage habits, budget, and needs to determine if the benefits outweigh the costs. For many, the long-term savings and convenience justify the investment.

Yes, sure.  KingStar drinkware customized with your logo and brand colors are great gifts for office employees, students, event attendees and clients, and make your business top-of-mind. They are an impressive addition to gift baskets.

Click and read more about KingStar corporate gift program

304 stainless steel is a common material in stainless steel. It is a healthy material. The important elements in 304 are Ni, Cr, but are not limited to these two elements. The industry generally judges that as long as the Cr content is greater than 18% and the Ni content is greater than 8%, the steel can be considered as SUS304 stainless steel. This is why the industry refers to this type of stainless steel as 18/8 stainless steel.

Since many customer asked this question about how vacuum flasks are made. To know details, pls click here: vacuum insulated stainless steel water bottle manufacturing process

Please Contact Us through our official email or phone number so you can receive further information on how to become KingStar Global Partner.

It’s very easy to purchase our products with your private label/logo. Send an email to sales@waterbottle.tech. Our experienced Sales Manager will provide complete service and guide you.

Yes, you can make payment via Paypal for small orders. We do have Paypal account.

T/T 30% deposit after order signed and 70% against copy of B/L.
L/C at sight is acceptable too.

FDA, Prop65/CA65, LFGB, REACH.

If you would like to get samples from us in order to test or make reviews, please contact our Sales / Branding department at sales@waterbottle.tech.

We are available in the office from Mondays to Fridays from 8:00 am to 6:00 pm. A highly trained manager will be available to receive your call and help you in everything you need. You can write to sales@waterbottle.tech. We reply each inquiry within 24 hours.

KingStar has a long history in the vacuum insulated stainless steel water bottle industry. We have a strong in house research and development team. Since our establishment we have developed many products that are unique, indispensable and irreplaceable. You can be sure that KingStar has the best and newest models in the industry.

Tell us you requirement or provide your design in JPG, doc, AI, cdr or PDF format. Our in house designer will work out 3D drawing for your final approval/confirmation. Or just send us the product URL from Amazon or your potential competitor’s website and your idea, we will handle all other jobs.

Normally It takes 4 weeks.

Since many new customers come to ask this question every week, we have written an article to answer this question. Please refer to the link below: Guide to Purchase Custom Color Water Bottles

Any colors with Pantone code. We have rich experience in matching colors with Pantone Matching System, so you can just tell us the Pantone color code you want and then we handle the others. If you have no idea on Pantone code, we will recommend some popular colors to you.

For existing model samples, it takes 2-3 working days. If you want samples with your own designs, it takes 5-7 days or even longer. Let’s discuss case by case.

Yes, it’s our pleasure to provide samples to you for testing. We usually provide exiting model samples for free. If you want to get customized samples, we will charge a little. However, samples charge will be refunded when you place order.

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