Double Wall Stainless Steel Insulated Lunch Box 240-820ml

Products Description Product name stainless steel vacuum food flask Size 8oz/12oz/20oz/28oz Accessories With None Vacuum insulated Keep your beverages cold for 24 hours and hot for at least 12 hours Material Double wall 18/8 stainless steel Sample Available Brand Name QiQing Logo Customized Logo Acceptable Packing White box/ custom box/color box Printing Customized Printing Accept Use outdoor/camping/office/gym/travel Colors Custermized Payment T/T,Western Union, Paypal, Trade Assurance, L/C and etc Hot Sale Products   Customization Praise Products Packaging Company Profile   Certifications FAQ 1

Which products you produce

Water bottles, Space Bottles,Vacuum flask, sports bottles ,travel mug, coffee mugs 2

What type of stainless steel does Qiqing use

All our stainless steel drinking containers are made of a premium food-grade type 304 stainless steel containing 18% chromium and 8% nickel with documented raw materials testing

This material is chosen for its consistent quality and performance characteristics of not leaching chemicals, staining, corroding or rusting

What is the plastic in Qiqing drinking containers made of

We use a tested #5 food-grade polypropylene (pp) in the lids and collars; #5 PP is a plastic with good durability and no known leaching characteristics

Can we use our own logo or designs

We can do the logos by using different printing process

The different process depend on the different logos

Mainly logo printing processes: silk screen printing, heat transfer printing, laser engraving, air transfer printing, water transfer, embossed, electrical corrosion etc

Stainless steel water bottle: 7323930000Vacuum flask:9617009000Aluminum sports bottle:7615190000Plastic travel mugs: 3924100000 6

Our port of shipment

Ningbo or Shanghai (China) Welcome to inquirying us to get more details

--- Existing Module Content --- [Module: Products Description] Product name stainless steel vacuum food flask Size 8oz/12oz/20oz/28oz Accessories With None Vacuum insulated Keep your beverages cold for 24 hours and hot for at least 12 hours Material Double wall 18/8 stainless steel Sample Available Brand Name QiQing Logo Customized Logo Acceptable Packing White box/ custom box/color box Printing Customized Printing Accept Use outdoor/camping/office/gym/travel Colors Custermized Payment T/T,Western Union, Paypal, Trade Assurance, L/C and etc [Module: Hot Sale Products]   [Module: Company Profile]   [Module: FAQ] 1

Which products you produce

Water bottles, Space Bottles,Vacuum flask, sports bottles ,travel mug, coffee mugs 2

What type of stainless steel does Qiqing use

All our stainless steel drinking containers are made of a premium food-grade type 304 stainless steel containing 18% chromium and 8% nickel with documented raw materials testing

This material is chosen for its consistent quality and performance characteristics of not leaching chemicals, staining, corroding or rusting

What is the plastic in Qiqing drinking containers made of

We use a tested #5 food-grade polypropylene (pp) in the lids and collars; #5 PP is a plastic with good durability and no known leaching characteristics

Can we use our own logo or designs

We can do the logos by using different printing process

The different process depend on the different logos

Mainly logo printing processes: silk screen printing, heat transfer printing, laser engraving, air transfer printing, water transfer, embossed, electrical corrosion etc

Stainless steel water bottle: 7323930000Vacuum flask:9617009000Aluminum sports bottle:7615190000Plastic travel mugs: 3924100000 6

Our port of shipment

Ningbo or Shanghai (China) Welcome to inquirying us to get more details

Q: What sizes are available for this double wall thermal lunch box?

A: This product comes in five capacities: 240ml, 300ml, 350ml, 600ml, and 820ml. Each size is designed for different portion needs, from small snacks to full meals. Please check the product listing for exact dimensions and choose the capacity that best fits your daily lunch requirements.

Q: How long does the double wall insulation keep food hot or cold?

A: The double wall stainless steel construction provides effective insulation. Typically, hot foods remain warm for 4 to 6 hours, and cold foods stay chilled for 6 to 8 hours, depending on initial food temperature, ambient conditions, and how often the lid is opened. Preheating or pre-cooling the container with hot/cold water before use can enhance performance.

Q: Is the stainless steel food-grade and safe for food?

A: Yes, the lunch box is made from high-quality, food-grade stainless steel. It is BPA-free, non-toxic, and does not retain odors or flavors. The material is rust-resistant and safe for storing a variety of foods, including soups, fruits, salads, and hot dishes.

Q: Does the container have a leak-proof lid? Can I carry soups or liquids?

A: The lid is designed to be tightly sealed with a silicone gasket to prevent leaks. It is suitable for carrying soups, sauces, and other liquids. However, for maximum leak protection, ensure the lid is properly closed and avoid overfilling. Do not tilt the container excessively when carrying very liquid contents.

Q: Can I put this lunch box in the microwave, dishwasher, or freezer?

A: The stainless steel body is not microwave safe. The container can be hand washed with mild detergent, and it is generally not recommended for the dishwasher as harsh cycles may affect the insulation or gasket. It is freezer safe for storing cold meals. For best longevity, hand washing is advised.

Q: Is this lunch box suitable for both hot and cold food?

A: Absolutely. The double wall vacuum insulation technology works for both hot and cold food. You can pack hot soups or stews in the morning and they stay warm until lunch, or use it for chilled salads and fruits to keep them cool. Just remember to pre-condition the container if extreme temperature retention is needed.

Q: What is the warranty and return policy for this product?

A: Most sellers offer a 30-day return policy and a 1-year warranty against manufacturing defects. Coverage may vary by seller, so please check the specific product page for warranty details. If you encounter any issues with insulation, lid sealing, or material defects, contact customer service for assistance.

Q: How should I clean and maintain the thermal lunch box?

A: Rinse the container with warm water and mild dish soap after each use. Use a soft sponge to avoid scratching. For stubborn stains or odors, a mixture of baking soda and water or diluted vinegar can be used. Do not use abrasive cleaners or steel wool. Ensure the lid gasket is dried thoroughly to prevent mold. Store with the lid open to allow air circulation.

For Best Thermal Performance:

• Preheat or pre-cool the container by filling with hot or cold water for 5-10 minutes before adding food. This optimizes insulation.
• Fill the container completely for maximum temperature retention.
• Do not overfill; leave a small gap to allow the lid to seal properly.

Safety & Maintenance:

• Not microwave safe. Do not place in microwave oven.
• Hand wash only with mild detergent and a soft sponge. Dishwasher use may damage the vacuum seal or exterior.
• Freezer safe for cold storage.
• Avoid storing carbonated beverages, as pressure buildup may cause leakage.
• Do not use abrasive cleaners, bleach, or steel wool.
• After washing, dry thoroughly and store with the lid open to prevent odor and mold.
• If the lid gasket becomes loose or damaged, contact customer service for replacement.

Food Safety: Made from food-grade 304 stainless steel, BPA-free. Suitable for a wide variety of foods including soups, stews, salads, fruits, and hot entrees.

This double wall thermal lunch box is available in the following capacities:

• 240ml (8oz)
• 300ml (10oz)
• 350ml (12oz)
• 600ml (20oz)
• 820ml (28oz)

Color can be customized upon request. Please contact us for available color options and bulk customization.