A stainless steel lunch box with dividers can keep a main dish and sides organized without sending you to work or school with several containers. The right choice depends on how much food you pack, whether you need one box or a multipack, and how you plan to carry saucy foods. These five options range from a large 1,400 ml bento to compact lunch boxes and meal-prep sets.
| Product | Capacity | Divider setup | Best for |
|---|---|---|---|
| P&P CHEF 1400 ml Bento Box | 1,400 ml / 49 oz | Removable T-shaped divider | Large lunches and flexible sections |
| BOLDELLI 4-Pack Lunch Boxes | 850 ml each | One removable divider per box | Meal prep and multiple lunches |
| Leonyo 28 oz Bento Lunch Box | 850 ml / 28 oz | Two removable dividers | Compact portions and school lunches |
| EC-Gaze 42 oz Bento Box | 1,250 ml / 42 oz | Removable adjustable divider | A roomy lunch with a lighter lid |
| vajshn 6-Pack Food Storage Containers | 850 ml each | Dividers included | Households and batch packing |
Our Picks: Best Stainless Steel Lunch Box With Dividers reviews
1. P&P CHEF 1400 ml Bento Box: Best for a Generous, Flexible Lunch
The P&P CHEF box has the largest stated capacity in this group: 1,400 ml, or 49 oz. Its removable T-shaped divider can create three sections or be removed to make more room for a larger item. That flexibility is useful when your lunch changes from a main dish with sides to a sandwich, salad, or a single larger portion.
The box is described as fully stainless steel, with two locking clips and a removable silicone sealing ring in the inner lid. The seal and clips are designed to help keep food contained during transport. The divider is for separating solid foods, though, so it should not be treated as a liquid-tight barrier between sections.
At 7.9 by 5.5 by 2.6 inches, it offers more room than the 850 ml options while still being described as suitable for most lunch bags and backpacks. It is dishwasher-safe and freezer-safe, and the product information says the steel box can go in an oven. It cannot go in a microwave, so you will need another way to heat food.
Pros:
- Largest capacity among these picks
- Removable T-shaped divider offers one or three sections
- Stainless steel construction with a silicone sealing ring and locking clips
- Dishwasher-safe and freezer-safe
Cons:
- Not suitable for microwave heating
- The divider does not create liquid-tight sections
Verdict: Choose the P&P CHEF if you want a roomy, all-steel lunch box and value being able to switch between divided and open space.
2. BOLDELLI 4-Pack: Best for Meal Prep and Repeat Use
This set includes four 850 ml stainless steel containers, each with its own removable divider. The 28 oz capacity is suited to a full-size lunch, while the 6.5 by 4.76-inch footprint is more compact than the P&P CHEF box. Having four matching containers can make it easier to prepare several lunches or keep portions ready for different days.
BOLDELLI specifies 304 stainless steel, silicone seals, and locking clips. The manufacturer describes the containers as leak-proof, but notes that the dividers are not liquid-tight. For soup or saucy meals, remove the divider; the seal around the lid is not a substitute for separation between compartments.
The containers are listed as freezer-safe and oven-safe up to 392°F. The product information says to remove the silicone seal for longer baking, and the steel is not microwave-safe. The closed containers stack with their lids on, but empty containers do not nest inside one another, so consider the storage space you have available.
Pros:
- Four containers and four removable dividers in one set
- 304 stainless steel construction
- Silicone seals and locking clips are designed to help prevent spills
- Freezer-safe, oven-safe, and top-rack dishwasher-safe
Cons:
- Dividers do not keep liquids separate
- Empty containers do not nest inside one another
Verdict: The BOLDELLI set is a practical pick if you want several same-size containers for meal prep, rather than a single lunch box.
3. Leonyo 28 oz Bento Box: Best for Compact Portions and Kids
The Leonyo lunch box holds about 850 ml, or 28 oz, and measures 6.3 by 4.3 by 2.1 inches. That smaller footprint may suit a child’s lunch bag or an adult who prefers a compact portion. It comes with two removable dividers, so you can arrange the interior as one, two, or three areas depending on what you pack.
Its 18/10 stainless steel body is described as rust-resistant and corrosion-resistant. Locking clips and a removable silicone seal are intended to keep the lid secure and help prevent leaks. The dividers can separate solid foods, but they do not stop liquids from flowing between sections, so pack wet foods with that limitation in mind.
The box is listed as dishwasher-safe and oven-safe, except for the cover. It is a useful option for sandwiches, fruit, snacks, or a meal with dry sides, but its capacity is smaller than the 1,250 ml EC-Gaze and 1,400 ml P&P CHEF boxes.
Pros:
- Compact size and 28 oz capacity
- Two removable dividers allow several interior layouts
- 18/10 stainless steel body
- Locking clips and a removable silicone seal
Cons:
- Dividers are not liquid-tight
- Cover is not oven-safe
Verdict: Pick the Leonyo if a compact lunch box with multiple divider options matters more to you than maximum capacity.
4. EC-Gaze 42 oz Bento Box: Best for a Roomy Lunch and Microwaveable Lid-Off Reheating
The EC-Gaze holds 1,250 ml, or 42 oz, making it one of the roomier choices here. Its removable adjustable divider lets you change the space for a main dish and sides or remove the divider for a more open container. The product information describes the lid as polypropylene rather than stainless steel.
Snap-lock clips help hold the lid in place, and the container is described as leak-resistant. That wording is more cautious than a guarantee against every spill, and the divider is not intended to separate liquids. For meals with sauces, pack carefully and avoid relying on the divider as a barrier.
This option has a distinct reheating advantage: the description says the food can be microwaved with the lid removed, using microwave mode at 1,000 watts or less for three to five minutes. The steel base itself should not go in the microwave. The box is also listed as refrigerator-safe and dishwasher-safe.
Pros:
- Large 1,250 ml capacity
- Removable adjustable divider
- Microwave reheating is specified with the lid removed and within the stated power limit
- Dishwasher-safe and refrigerator-safe
Cons:
- Divider is not intended to separate liquids
- The lid is polypropylene, not stainless steel
Verdict: Choose the EC-Gaze if you want generous capacity and the option to microwave food after removing the lid and following the stated power limit.
5. vajshn 6-Pack: Best for Stocking Up on Everyday Food Containers
The vajshn set includes six containers, each with a stated capacity of about 850 ml and dimensions of 6.5 by 4.7 by 2.3 inches. That size is close to the BOLDELLI and Leonyo options, but the six-pack gives you more containers for packing lunches, storing snacks, or organizing portions for several people.
The containers are described as 304 stainless steel, with snap-lock lids and removable sealing rings. The product information says dividers are included, but does not specify that they are removable, so check the listing details if you need to change the compartment layout. As with other divided lunch boxes, don’t assume the divider will prevent liquid from moving between sections.
The set is listed as dishwasher-safe, and the sealing rings can be removed for separate cleaning. It offers a useful amount of capacity in a portable format, but a six-container set may be more than you need if you are shopping for just one daily lunch box.
Pros:
- Six containers for meal prep or multiple people
- 850 ml capacity per container
- 304 stainless steel construction
- Snap-lock lids and removable sealing rings
Cons:
- Divider removability is not specified in the supplied product details
- A six-pack may take more storage space than a single lunch box
Verdict: The vajshn set makes sense if you need several everyday containers and are comfortable confirming the divider setup before buying.
How to Choose a Stainless Steel Lunch Box With Dividers
Match Capacity to Your Lunch
Capacity makes a big difference to how useful a lunch box feels day to day. The 850 ml options are more compact and may work well for children, snacks, or moderate portions. If you pack a larger meal or want extra room for sides, the EC-Gaze offers 1,250 ml, while the P&P CHEF has the largest stated capacity at 1,400 ml.
Check How the Dividers Work
Removable dividers give you more control over portion sizes and layout. Some models have one divider, while the Leonyo has two and the P&P CHEF uses a T-shaped divider. Remember that a divider usually separates solid foods, not liquids. If you are packing dressing, soup, or a saucy dish, look for a separate sealed container or pack the food in a way that prevents it from moving between sections.
Consider the Lid and Seal
Locking clips can help keep a lid closed, while a silicone sealing ring can help reduce leaks around the edge. Check whether the seal is removable for cleaning, and look closely at the product’s leak claims. A leak-resistant lid does not mean each compartment is sealed from the others, and no lunch box should be treated as spill-proof unless its design and intended use support that expectation.
Choose the Right Material and Lid Combination
Some options in this guide have stainless steel throughout, while the EC-Gaze has a polypropylene lid. If you want to avoid plastic in the lid, compare the product construction carefully. Also check care instructions: stainless steel is not microwave-safe, and oven rules differ by model and may exclude the lid or silicone seal.
Think About Heating and Cleaning
If you need to reheat lunch, confirm exactly which parts can be heated and how. The EC-Gaze description allows microwave heating with the lid removed and gives a wattage and time limit; the steel containers in the other options should not be put in a microwave. Dishwasher compatibility also varies by component, so follow the care instructions for lids, seals, and containers separately.
Decide Between One Box and a Set
A single container is simpler if you pack one lunch at a time. Multipacks such as the BOLDELLI four-pack and vajshn six-pack can suit batch prep or a household that needs several containers. Consider your cupboard and lunch-bag space too: the BOLDELLI containers stack with lids on, but they do not nest when empty.
Frequently Asked Questions
Can you put a stainless steel lunch box in the microwave?
No. Stainless steel should not be put in a microwave. The EC-Gaze description allows microwave heating with its lid removed, but follow its stated power and time limits. For other steel boxes, transfer food to a microwave-safe dish or use an oven only if the product instructions allow it.
Do lunch box dividers keep sauces from mixing with other foods?
Not necessarily. The product details for several models state that their dividers are not liquid-tight. They are best for separating solid foods. Pack sauces separately or choose foods that will stay in place during transport.
Which option has the largest capacity?
The P&P CHEF has the largest stated capacity in this selection at 1,400 ml, or 49 oz. The EC-Gaze is next at 1,250 ml, or 42 oz.
Which lunch box is the most compact?
The Leonyo is the smallest by listed dimensions at 6.3 by 4.3 by 2.1 inches. Its 850 ml capacity makes it a compact choice for smaller lunches or bags.
Are these lunch boxes suitable for children?
The Leonyo is described as a portable option for children and has a compact size. The best fit depends on your child’s appetite, lunch bag, and ability to open the clips. Check the listed dimensions before choosing.
Can stainless steel lunch boxes go in the oven?
Some can, but oven rules depend on the specific model and its parts. The P&P CHEF and Leonyo descriptions include oven use, while BOLDELLI lists an upper temperature limit and advises removing the silicone seal for longer baking. Check the product instructions before heating any container, lid, or seal.
Final Recommendation
For one large lunch box with flexible compartments, the P&P CHEF is the strongest fit based on its 1,400 ml capacity and removable T-shaped divider. Choose BOLDELLI or vajshn if you need several containers for meal prep, and consider the Leonyo for a smaller lunch. If microwave reheating matters, the EC-Gaze stands apart, but its steel base must stay out of the microwave and its lid must be removed.