Buying Guide For Your Double Walled Lunch Box

1. What is the double walled lunch box?

A double-walled lunch box is a type of lunch box that is designed with two layers of walls or insulation, typically made of plastic, metal, or a combination of both. The double walls provide additional insulation and help to keep the food and drinks inside the lunch box at the desired temperature for a longer period of time.

Wholesale double-walled lunch boxes are often used by people who need to bring their own meals to work, school, or other activities, and want to ensure that their food stays fresh and at the desired temperature until it is time to eat.

2. How does a double walled lunch box work?

A double-walled lunch box works by providing an additional layer of insulation to help maintain the temperature of the food and drinks stored inside. The two walls or layers of the lunch box create an insulating barrier that helps to prevent heat from escaping or entering the container.

In a typical double-walled lunch box, the inner layer is made of a material that is safe for storing food and drinks, such as stainless steel or food-grade plastic. This layer is designed to hold the food and drinks and keep them separate from the outer layer.

The outer layer of the lunch box is made of a more durable material, such as hard plastic or metal, which provides protection for the food and drinks inside. The outer layer also acts as a shield, helping to prevent any outside heat or cold from affecting the temperature of the contents inside.

Some double-walled lunch boxes also feature a vacuum seal, which creates an airtight seal between the two layers of the container. This seal helps to prevent any air from entering or escaping, which can further improve the insulation and temperature control of the lunch box.

If you pack a hot soup in a double-walled lunch box with a vacuum seal, the inner layer of the container will keep the soup hot, while the outer layer will prevent any outside heat from entering. Similarly, if you pack a cold salad with ice packs in a double-walled lunch box, the inner layer will keep the salad cool, while the outer layer will prevent any outside heat from warming up the salad.

3. What can be put in a double walled lunch box?

A double-walled lunch box can be used to store a variety of food and drinks, depending on the individual’s preferences and needs. Some common items that can be stored in a double-walled lunch box.

• Hot food: A double-walled lunch box is ideal for storing hot food, such as soups, stews, pasta, rice dishes, and curries. The double-walled insulation helps to keep the food hot for several hours, making it perfect for people who want to enjoy a hot meal while on the go.
• Cold food: A double-walled lunch box can also be used to store cold food, such as salads, sandwiches, fruits, and vegetables. The double-walled insulation helps to keep the food cool for several hours, making it ideal for people who want to enjoy a fresh and healthy meal while on the go.
• Drinks: A double-walled lunch box can be used to store a variety of drinks, such as water, juice, tea, coffee, and smoothies. The double-walled insulation helps to keep the drinks at the desired temperature, whether hot or cold, for several hours.
• Snacks: A double-walled lunch box can also be used to store snacks, such as chips, crackers, nuts, and energy bars. The double-walled insulation helps to keep the snacks fresh and crispy for several hours, making them perfect for people who need a quick snack while on the go.

4. What are the materials for double walled lunch boxes?

There are numerous double walled lunch boxes on sale and it will be helpful to you if you have a clear and comprehensive understanding to the varied materials of double walled lunch boxes.

Stainless steel

Plastic

Silicone

Glass

5. What are the shapes of double walled lunch boxes?

Double-walled lunch boxes come in various shapes and sizes, and are designed to keep your food warm or cold for an extended period of time. Now follow KingStar to take a look at double walled lunch boxes of different shapes on the market.

• Rectangular:Rectangular-shaped lunch boxes are the most common and versatile shape. They come in a variety of sizes and materials, from plastic to stainless steel. These lunch boxes often have several compartments, making it easy to pack a complete meal, including snacks and drinks.
• Square:Square-shaped lunch boxes are similar to rectangular-shaped ones, but they have a more compact design. They are a good choice if you want a lunch box that is easy to carry and fits neatly in a backpack or purse.
• Round:Round-shaped lunch boxes are a good option if you want a lunch box that is easy to clean and store. These lunch boxes often have a single compartment and a screw-on lid that keeps food fresh and secure.
• Bento:Bento-style lunch boxes are a popular choice for those who want to pack a variety of different foods. These lunch boxes have multiple compartments and are often made of plastic or stainless steel. They are ideal for packing a balanced meal that includes vegetables, fruits, and protein.
• Tiffin:Tiffin-style lunch boxes are a traditional Indian lunch box that consists of multiple stainless steel containers stacked on top of each other. These lunch boxes are designed to keep different types of food separate, and they are often used for carrying a complete meal, including rice, curries, and chapati.

6. What are the advantages of double walled lunch boxes?

More and more people are willing to take meals to school or office, so double walled lunch boxes become a hot product on the market. The box has many benefits and is ideal for packing a variety of different foods. Here are some key pros of double walled lunch boxes:

• Temperature control:One of the most significant advantages of a double-walled lunch box is that it can keep your food at the desired temperature for an extended period of time. The insulation between the inner and outer walls helps to maintain the temperature of the food inside, whether you want it to stay warm or cold.
• Durability:Double-walled lunch boxes are typically made from high-quality materials such as stainless steel or heavy-duty plastic, making them durable and long-lasting.
• Versatility: Double-walled lunch boxes come in a variety of shapes and sizes, making them versatile and suitable for a wide range of uses. You can use them to pack a complete meal, including drinks, snacks, and sandwiches, or as a food container for work or school.
• Easy to clean:Many double-walled lunch boxes are dishwasher safe, making them easy to clean and maintain. They are also less likely to absorb food odors and stains, so they stay fresh and odor-free.
• Environmentally friendly:Double-walled lunch boxes are a more environmentally friendly option than disposable plastic containers. By using a reusable lunch box, you can reduce your carbon footprint and help to reduce plastic waste.

7. How to choose right double walled lunch boxes?

When choosing the right double-walled lunch box, there are several factors to consider. Here are some key things to keep in mind when making your selection:

• Consider size and capacity: The size and capacity of the lunch box should be determined by the amount of food you plan to pack. If you prefer a smaller lunch, a compact lunch box may be sufficient. On the other hand, if you have a larger appetite or need to pack more food, you may need a larger capacity lunch box.
• Material: Double-walled lunch boxes can be made from various materials such as stainless steel, plastic, or glass. Compared with other materials, Stainless steel is best choice. It is a durable and long-lasting material that is resistant to corrosion and rust. It’s also easy to clean and maintain, and it doesn’t absorb food odors or stains. Additionally, stainless steel lunch boxes are typically free of harmful chemicals such as BPA and phthalates, making them a safe choice for food storage.
• Insulation: The level of insulation is a key factor to consider when selecting a double-walled lunch box. A good quality insulation will keep your food at the desired temperature for an extended period of time. Look for a lunch box with vacuum insulation or a double-walled construction for the best results.
• Compartments: Compartments are an essential feature of a lunch box, as they allow you to pack different types of food and keep them separate. Consider the number and size of compartments when choosing a lunch box. Some lunch boxes have one large compartment, while others have multiple compartments of different sizes.
• Ease of Use: The lunch box should be easy to use and transport. Look for a lunch box with a secure closure, such as a snap or locking mechanism, to prevent spills or leaks. Additionally, consider the weight and size of the lunch box, as well as any additional features such as a carrying handle or shoulder strap.

8. FAQ – What else do you wanna know about double walled lunch boxes?

8.1 Is it safe to keep food in the double walled lunch box?

Of course, it is safe to keep food in a double-walled lunch box, as long as it is made of food-grade materials and is used properly. Double-walled lunch boxes are designed to keep food at a safe temperature, whether it’s hot or cold, for an extended period of time.

However, it’s important to follow basic food safety guidelines when using a lunch box.

• Clean the lunch box thoroughly before and after each use.
• Use an insulated lunch box with an ice pack or cold source for perishable foods that need to be kept cold.
• Use a double-walled lunch box with a tight-fitting lid to keep hot foods hot and cold foods cold.
• Do not keep perishable foods in the lunch box for more than 2 hours at room temperature.
• Avoid packing food that can spoil easily, such as mayonnaise-based salads, raw meats, or dairy products, unless you can keep them cold with an ice pack.

By following these guidelines and choosing a high-quality double-walled lunch box made of food-grade materials, you can safely store your food and enjoy a delicious and healthy meal on the go.

8.2 Are double walled lunch boxes dishwasher safe?

Whether a double-walled lunch box is dishwasher safe or not depends on the specific lunch box and its materials. Some double-walled lunch boxes are dishwasher safe, while others are not.

• Stainless steel lunch boxesare often dishwasher safe, as they are durable and can withstand high temperatures. However, you need to check the manufacturer’s instructions before you put a stainless steel lunch box in the dishwasher, as some may have plastic or silicone parts that are not dishwasher safe.
• Plastic lunch boxesmay or may not be dishwasher safe, depending on the type of plastic used. Some plastics can warp or become discolored in the dishwasher, so it’s important to check the manufacturer’s instructions before putting a plastic lunch box in the dishwasher.
• Glass lunch boxesare generally dishwasher safe, but it’s important to handle them carefully to avoid breakage.

Here KingStar reminds you that it’s always best to check the manufacturer’s instructions before putting a double-walled lunch box in the dishwasher. If in doubt, it’s usually safer to hand wash the lunch box to avoid any damage.

8.3 Can I heat baby food in the double walled lunch box?

It is not recommended to heat baby food in a double-walled lunch box. Most double-walled lunch boxes are designed to keep food at a specific temperature, rather than heat it up. In addition, some materials used in double-walled lunch boxes, such as plastic, may not be safe for heating in a microwave.

If you need to heat up baby food while on-the-go, it’s best to use a separate container that is specifically designed for heating in a microwave or hot water. You can then transfer the heated food into the double-walled lunch box once it has reached the desired temperature.

It’s also important to follow basic food safety guidelines when handling and storing baby food, such as washing your hands before handling the food, using clean utensils and containers, and keeping the food at a safe temperature to avoid the growth of harmful bacteria.

Conclusion

As a leading custom lunch box manufacturer, KingStar hopes that this article can be helpful to you while selecting.

Want to purchase custom lunch boxes in bulk? Want to establish a new brand? You are at the right place! KingStar provides one-stop OEM / ODM manufacturing service from product idea, tooling fabrication, mass production to global shipping. Send us an email to sales@waterbottle.tech, you will get prompt response within 24 hours.