A good hot-and-cold food thermos can make soup, oatmeal, pasta, or a chilled snack easier to take to work, school, or the trail. The right choice depends on how much food you pack, how long it needs to hold its temperature, and whether features like a serving bowl or built-in spoon matter to you. These five options range from compact lunch jars to a large-capacity container, with different insulation claims and care instructions to consider.
Quick Comparison
| Food Thermos | Capacity | Stated Temperature Retention | Standout Feature |
|---|---|---|---|
| THERMOS Stainless King Food Jar | 24 oz | Hot up to 14 hours; cold up to 24 hours | Lid doubles as an insulated bowl |
| Hydrapeak Stainless Steel Food Thermos | 25 oz | Hot up to 10 hours; cold up to 16 hours | Folding carry handle |
| American Dream Vacuum Insulated Food Jar | 34 oz | Hot or cold up to 24 hours | Largest capacity in this lineup |
| THERMOS FUNTAINER Kids Food Jar | 10 oz | Hot up to 5 hours; cold up to 7 hours | Foldable spoon stored in the lid |
| THERMOS FUNTAINER 16oz Food Jar | 16 oz | Hot up to 7 hours; cold up to 9 hours | More capacity than the 10-ounce FUNTAINER |
Temperature-retention times are the manufacturers’ stated maximums. Actual results can vary with the food, starting temperature, and how the container is prepared.
Our Picks: Best Hot And Cold Thermos For Food reviews
1. THERMOS Stainless King: Best All-Around Jar With a Serving Bowl
The 24-ounce Stainless King is a versatile pick for packing a full lunch without bringing a separate serving bowl. Its lid serves as an insulated bowl, which can be useful at work, on a road trip, or at a campsite. The jar is made from 18/8 stainless steel and has a pressure-relief stopper designed to help avoid spills.
THERMOS states that the jar keeps food hot for up to 14 hours or cold for up to 24 hours. That makes it a strong option for people who want one container for both hot meals and cold foods such as salads. The exterior is designed to stay cool to the touch with hot contents and resist sweating with cold contents.
The jar is leakproof when closed, according to the product details, but the pressure-relief stopper is an additional part to keep track of. It can be disassembled for cleaning, and the care guidance recommends the top rack of a dishwasher. If you want a simple, compact jar with a dedicated serving bowl, this model offers a useful balance of capacity and convenience.
Pros:
- 24-ounce capacity suits a substantial packed meal.
- Lid doubles as an insulated serving bowl.
- Stated cold retention is up to 24 hours.
- Dishwasher safe, with top-rack placement recommended.
Cons:
- The pressure-relief stopper adds a piece to clean and keep track of.
- Its stated hot-retention time is shorter than its cold-retention time.
Verdict: Choose the Stainless King if you want an everyday food jar with a built-in serving bowl and long stated cold retention.
2. Hydrapeak 25oz Food Thermos: Best for Carrying on the Go
This 25-ounce Hydrapeak jar is designed for meals you want to carry in a lunch bag or backpack. Its leakproof construction is intended to help keep food contained, and the folding handle gives you a practical way to carry the jar between home, work, and school. The wide mouth also makes it easier to fill, serve from, and clean than a narrow-opening container.
Double-wall vacuum insulation is stated to keep food hot for up to 10 hours or cold for up to 16 hours. That is less than the stated retention time of the Stainless King, but the capacity is similar. It can suit everyday meals like soup, oatmeal, or pasta when you value the handle and wide opening more than the longest possible stated hold time.
One tradeoff is care: the product details specify hand washing only. If you prefer putting food containers in the dishwasher, the Stainless King or either FUNTAINER model may be more convenient, subject to their care guidance. The product is described as BPA-free, but the supplied details do not specify its stainless-steel grade.
Pros:
- 25-ounce capacity is close to the Stainless King’s size.
- Folding handle makes it easier to carry.
- Wide mouth supports filling, serving, and cleaning.
- Leakproof construction is designed for bags and backpacks.
Cons:
- Hand wash only.
- Stated hot and cold retention times are shorter than some options here.
Verdict: Pick the Hydrapeak if you want a wide-mouth jar with a carry handle and are comfortable washing it by hand.
3. American Dream 34oz Food Jar: Best for Larger Meals
With a 34-ounce capacity, the American Dream food jar is the largest option in this group. It is designed for more than a small snack or a modest lunch: the product details list foods such as soups, stews, rice, pasta, and salads. If you pack a generous portion or want one container to hold a full meal, its extra room is the main reason to consider it.
The jar uses double-wall vacuum insulation, and the manufacturer states that it can maintain hot or cold food temperatures for up to 24 hours. Its wide mouth is meant to make filling, eating, and cleaning easier, while the secure lid is described as leakproof. The stainless-steel construction is also described as food grade and resistant to rust, odors, and stains.
Compared with the 24- and 25-ounce jars, this model offers considerably more capacity, but that may be unnecessary if you prefer a compact lunch. The product details describe it as lightweight and portable but do not provide a weight, so consider whether a larger jar fits your bag and meal routine before choosing it.
Pros:
- 34-ounce capacity accommodates larger meals.
- Stated hot or cold retention is up to 24 hours.
- Wide mouth makes filling and eating more convenient.
- Leakproof lid is designed for carrying meals.
Cons:
- The large capacity may be more than you need for a standard lunch.
- The supplied details do not specify dishwasher-safe care instructions.
Verdict: Choose the American Dream jar if meal size is your priority and you want a large container with long stated hot-and-cold retention.
4. THERMOS FUNTAINER 10oz: Best Compact Jar for Kids
The 10-ounce FUNTAINER is a smaller food jar made for children’s lunches and snacks. Its lightweight, compact design is intended to fit into a lunch routine, and the lid includes a foldable spoon so there is a utensil ready for foods like soup or oatmeal. The push-button lid is designed to make the jar easier for kids to carry and open.
THERMOS states that this model keeps food hot for up to 5 hours or cold for up to 7 hours. Those are shorter retention times than the larger jars in this guide, so this one is best suited to meals eaten within a shorter window rather than a long day away from home. The jar is made with 18/8 stainless steel and is described as leakproof when the lid is closed.
It is dishwasher safe, though hand washing is recommended. Its smaller capacity makes it less suitable for adults who want a full-size meal, but it can be a practical fit when portion size, a built-in spoon, and a kid-oriented lid matter most.
Pros:
- Compact 10-ounce size suits smaller portions.
- Foldable spoon is integrated into the lid.
- Push-button lid is designed for kid-friendly use.
- Dishwasher safe, with hand washing recommended.
Cons:
- Smaller capacity may not hold an adult-size meal.
- Stated temperature retention is shorter than the other jars here.
Verdict: The 10-ounce FUNTAINER is a good match for a child’s compact lunch when a built-in spoon matters more than a large serving.
5. THERMOS FUNTAINER 16oz: Best for a Bigger Kid-Sized Portion
This 16-ounce FUNTAINER keeps the kid-focused features of the smaller model but offers more room for lunch. It has an integrated foldable spoon in the lid and a push-button design intended to make it easier for children to open and carry. The 18/8 stainless-steel body is described as durable for everyday use.
Its stated retention is up to 7 hours for hot food and up to 9 hours for cold food. That is an improvement over the 10-ounce FUNTAINER, though it still falls short of the longer stated times for the adult-size jars. The 16-ounce size is a useful middle ground if the smaller model seems too limited but a 24-ounce or larger container would be too much.
The jar is described as BPA-free and leakproof when closed. It is dishwasher safe, but hand washing is recommended. As with any container with an integrated utensil, make sure the spoon and lid are cleaned as part of your regular routine.
Pros:
- 16-ounce capacity holds more than the 10-ounce FUNTAINER.
- Includes a foldable spoon in the lid.
- Stated hot and cold retention exceeds the smaller FUNTAINER model.
- Dishwasher safe, with hand washing recommended.
Cons:
- Stated temperature retention is shorter than that of the larger adult jars.
- Hand washing is recommended despite being dishwasher safe.
Verdict: Choose the 16-ounce FUNTAINER for a larger child-friendly portion with a built-in spoon and more holding time than the 10-ounce version.
How to Choose a Hot and Cold Thermos for Food
Match the capacity to your usual meal
A compact jar can be easier to fit into a child’s lunch bag, while a larger one can hold a more substantial meal. The options here range from 10 to 34 ounces. Think about the portion you actually pack: extra capacity can be useful for a full meal, but a jar that is much larger than your needs may be less convenient to carry.
Compare hot and cold retention separately
Insulation claims can differ for hot and cold food, even within the same product. Check both stated times against your schedule. For example, a jar may be a strong fit for chilled food but offer a shorter stated hold for hot meals. Treat maximum retention claims as a guide rather than a guarantee, since results can vary with the food and how you prepare the container.
Look for features that fit how you eat
A lid that doubles as a bowl can save you from packing an extra dish, while an integrated spoon can help with school lunches. A folding handle may be useful when you carry the jar on its own. Wide-mouth designs can also make a container easier to fill, eat from, and clean. Focus on the features you will use regularly, rather than choosing based on extras alone.
Check the leak and closure details
If you plan to pack a thermos in a bag, pay attention to the product’s leakproof claims and how the lid is described. Follow the closing instructions and make sure any stopper or lid components are properly seated. A leak-resistant design can help with transport, but it is still sensible to handle a packed food jar carefully.
Consider cleaning and care
Care instructions vary across these options. The Hydrapeak jar is hand wash only; the THERMOS models are described as dishwasher safe, with hand washing recommended for the FUNTAINER jars and top-rack placement recommended for the Stainless King. The American Dream product details do not specify dishwasher guidance. If quick cleanup is important, check the care instructions before choosing.
Choose a design that suits the person using it
For a child, a compact size, accessible lid, and built-in spoon may matter most. For an adult carrying lunch, capacity, insulation claims, and ease of serving may take priority. If you expect to eat directly from the container, consider whether its opening is comfortable to use and whether a bowl or utensil is included.
Frequently Asked Questions
Can these food thermoses hold both hot and cold food?
Yes. All five products are described as insulated for hot and cold foods. Their stated retention times differ, so compare the hot and cold claims for the specific jar you are considering.
Which option has the largest capacity?
The American Dream food jar holds 34 ounces, making it the largest option in this group. It is designed for larger meals such as soups, stews, pasta, and salads.
Which thermos includes a bowl or spoon?
The THERMOS Stainless King lid doubles as an insulated bowl. Both THERMOS FUNTAINER jars include a foldable spoon stored in the lid.
Which food jar is designed for a child’s lunch?
The 10-ounce and 16-ounce THERMOS FUNTAINER jars are described as kid-friendly. The 10-ounce model is more compact, while the 16-ounce version offers more room for food.
Are all of these food thermoses dishwasher safe?
No. The Hydrapeak jar is listed as hand wash only. The THERMOS Stainless King and FUNTAINER jars are described as dishwasher safe, with additional hand-washing or top-rack guidance. The supplied details for the American Dream jar do not state whether it is dishwasher safe.
How can I help a food thermos hold its temperature?
The THERMOS product details recommend preheating or chilling the jar with hot or cold water for 5 to 10 minutes, then emptying it before adding food. Follow the preparation instructions for your particular model and allow for variation in real-world results.
Final Recommendation
For a versatile everyday choice, the THERMOS Stainless King stands out for its 24-ounce capacity, serving-bowl lid, and stated hot and cold retention. Choose the American Dream jar if you need more room for a large meal, or the Hydrapeak if a folding handle and wide mouth suit your routine. For children, the FUNTAINER models offer compact sizes and built-in spoons, with the 16-ounce version providing more space than the 10-ounce jar.