Metal bento boxes offer a durable, stylish way to pack lunches without plastic. Stainless steel options lock tight, stack neatly, and keep food fresh for work, school, or travel. This guide covers eight top picks with clear notes on leak resistance, compartments, and ease of use. Read on to find a metal bento that fits your routine and values.
| E-far Stainless Steel Bento Box 850ml (Medium) |
| Best for Meal Prep | Material: 18/10 stainless steel (food-grade) | Compartments: Converts 1 → up to 3 compartments (2 removable dividers) | Leak/Seal Features: Silicone sealing ring + locking clip (leak-resistant design) | VIEW LATEST PRICE | Read Our Analysis |
| Kids Stainless Steel Leak-Resistant Bento Lunch Box (Pink) |
| Best for Kids | Material: 304 stainless steel (food-grade) | Compartments: 3 compartments + optional silicone container (4th) | Leak/Seal Features: Airtight, leak-resistant silicone seal + secure locking mechanism | VIEW LATEST PRICE | Read Our Analysis |
| 304 Stainless Steel 3-Compartment Leakproof Bento Box |
| Most Heavy-Duty | Material: 304 stainless steel | Compartments: 3 compartments (tray included) | Leak/Seal Features: Detachable silicone gasket + dual locking clasps (airtight) | VIEW LATEST PRICE | Read Our Analysis |
| Snackle Stainless Steel 5-Compartment Leakproof Bento Box |
| Best for Snacks & Parties | Material: 304 stainless steel compartments (with BPA-free plastic lid/seals) | Compartments: 5 removable compartments | Leak/Seal Features: Leak-resistant, airtight lid with snap closure | VIEW LATEST PRICE | Read Our Analysis |
| Umigy Stainless Steel Lockable Bento Lunch Boxes (4) |
| Compact & Lockable | Material: Stainless steel (food-grade) | Compartments: Single container (sold as set of 4 sizes) — compact lunch box (lockable) | Leak/Seal Features: Lockable clips; leak-proof design for saucy foods | VIEW LATEST PRICE | Read Our Analysis |
| Stainless Steel 3-Pack 5-Compartment Bento Snack Containers |
| Best Multi-Pack | Material: 18/8 stainless steel (food-grade) | Compartments: 5 divided compartments (per container) | Leak/Seal Features: Clear PP lid (not leak-proof for liquids) — dust protection (note: not fully liquid-tight) | VIEW LATEST PRICE | Read Our Analysis |
| Bentgo Kids Stainless Steel 3-Compartment Lunch Box |
| Kid-Approved Favorite | Material: 18/8 stainless steel (food-grade) | Compartments: 3 built-in compartments + optional silicone container (4th) | Leak/Seal Features: Airtight seal + locking clips (leak-resistant) | VIEW LATEST PRICE | Read Our Analysis |
| Leak-Proof Stackable Stainless Steel Bento Lunch Box |
| Best Stackable Design | Material: Premium stainless steel | Compartments: Double stackable layers (2 compartments) with 2 removable dividers | Leak/Seal Features: Leak-resistant lids on each compartment + steam valve | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
E-far Stainless Steel Bento Box 850ml (Medium)
If you want a sturdy, low-fuss lunch box that handles real life, the E-far Stainless Steel Bento Box 850ml is a smart pick for people who pack meals every day. You’ll appreciate the 18/10 stainless steel that won’t rust and stays safe for food. It holds sandwiches, salads, fruits, and snacks without taking up extra space in your bag. You can switch from one section to three with two removable dividers, so flavors stay apart. The lid seals with a silicone ring and locking clip to help prevent leaks. It’s freezer and dishwasher safe, but not for microwaves.
- Material:18/10 stainless steel (food-grade)
- Compartments:Converts 1 → up to 3 compartments (2 removable dividers)
- Leak/Seal Features:Silicone sealing ring + locking clip (leak-resistant design)
- Dishwasher Safe:Dishwasher-safe (remove lid before dishwasher)
- Portable Use Cases:Meal prep, work/school lunches, camping, picnics, travel
- Not Fully Microwave-Safe (restrictions):Not microwave-safe
- Additional Feature:Removable dividers (2)
- Additional Feature:Silicone sealing ring
- Additional Feature:Locking clip lid
Kids Stainless Steel Leak-Resistant Bento Lunch Box (Pink)
Parents who want a safe, sturdy lunch box that actually keeps food separate will love the Kids Stainless Steel Leak-Resistant Bento Lunch Box in Pink. You’ll appreciate its 304 stainless steel body that feels solid yet stays light for small hands. It has three built-in compartments plus an optional silicone container for sauces or snacks, so you can control portions without spills. The airtight seal and secure locks stop leaks, and smooth edges make it child friendly. It’s dishwasher safe on the top rack though hand washing preserves the seal. Use it for school, picnics, or travel with calm confidence.
- Material:304 stainless steel (food-grade)
- Compartments:3 compartments + optional silicone container (4th)
- Leak/Seal Features:Airtight, leak-resistant silicone seal + secure locking mechanism
- Dishwasher Safe:Dishwasher-safe (top-rack; hand wash recommended to preserve seal)
- Portable Use Cases:School lunches, picnics, travel, work breaks, outdoor adventures
- Not Fully Microwave-Safe (restrictions):Not specified as microwave-safe (implied hand-wash and seal care) — effectively not microwave-recommended
- Additional Feature:Included silicone container
- Additional Feature:Child-safe smooth edges
- Additional Feature:1200 ml capacity
304 Stainless Steel 3-Compartment Leakproof Bento Box
You’ll love this 304 Stainless Steel 3-Compartment Leakproof Bento Box if you often pack meals for work, travel, or busy days, because it’s built to keep food fresh and tidy without the fuss. You get a roomy 1800 ml capacity in a sturdy 9.45 by 6.69 by 3.62 inch frame that feels solid but not heavy. The 304 stainless steel is odorless, tasteless, and durable, and it passed third-party safety checks. A detachable silicone gasket and dual clasps form an airtight seal, plus a vented lid releases steam. It includes fork, spoon, chopsticks, and an ergonomic handle for easy carrying.
- Material:304 stainless steel
- Compartments:3 compartments (tray included)
- Leak/Seal Features:Detachable silicone gasket + dual locking clasps (airtight)
- Dishwasher Safe:Dishwasher-safe (remove silicone ring and lid for hand-washing to preserve seal)
- Portable Use Cases:Travel, work/office lunches, picnics
- Not Fully Microwave-Safe (restrictions):Avoid microwaving (stainless steel product; vented lid for steam release but not microwave)
- Additional Feature:Pressure-release vent
- Additional Feature:Included utensil set
- Additional Feature:Ergonomic carrying handle
Snackle Stainless Steel 5-Compartment Leakproof Bento Box
Snackle’s Stainless Steel 5-Compartment Leakproof Bento Box is a great pick for anyone who wants an easy, tidy way to pack snacks for school, work, travel, or picnics. You’ll love the five removable 304 stainless steel compartments that keep fruits, nuts, candy, and dips separate and fresh. The clear snap-on lid and semi-circular handles make opening simple, and the airtight, leak-resistant seal gives you confidence when you toss it in a bag. It’s dishwasher and freezer safe, though not microwave friendly. Lightweight and durable, it feels thoughtful and reliable for busy days away from home.
- Material:304 stainless steel compartments (with BPA-free plastic lid/seals)
- Compartments:5 removable compartments
- Leak/Seal Features:Leak-resistant, airtight lid with snap closure
- Dishwasher Safe:Dishwasher-safe (do not close lid when using dishwasher)
- Portable Use Cases:School, picnic, travel, parties (snacks)
- Not Fully Microwave-Safe (restrictions):Not microwave-safe
- Additional Feature:Transparent viewing lid
- Additional Feature:Five removable compartments
- Additional Feature:Semi-circular grab handles
Umigy Stainless Steel Lockable Bento Lunch Boxes (4)
If you want a sturdy, no-fuss lunchbox that protects saucy meals and fits easily into a work bag, the Umigy Stainless Steel Lockable Bento set is a smart choice. You’ll notice the solid stainless steel feels reassuring in your hand and resists dents and warping, so it lasts. The lockable clips keep the lid tight and prevent spills, making it safe for juicy dishes. At about 14 by 10.3 by 5.8 cm, it slips into bags without bulk. It’s dishwasher-safe, easy to clean, and replaces disposables. Bring it to work, picnics, or give it as a thoughtful gift.
- Material:Stainless steel (food-grade)
- Compartments:Single container (sold as set of 4 sizes) — compact lunch box (lockable)
- Leak/Seal Features:Lockable clips; leak-proof design for saucy foods
- Dishwasher Safe:Dishwasher-safe
- Portable Use Cases:Work lunches, picnics, food storage (portable)
- Not Fully Microwave-Safe (restrictions):Not microwave-safe
- Additional Feature:Four-pack set
- Additional Feature:Compact pocket-friendly size
- Additional Feature:Lockable clips
Stainless Steel 3-Pack 5-Compartment Bento Snack Containers
If you want a durable, plastic-free way to pack varied snacks for kids, work, or travel, this stainless steel 3-pack of 5-compartment bento containers is a smart choice. You get three roomy trays, each slightly larger than an iPad, so you can mix fruits, nuts, cheeses, veggies, and small sandwiches without flavors touching. The 18/8 food grade steel lasts and resists daily wear, and the clear PP lids keep dust off while you accept that they’re not leak-proof. They’re oven and fridge safe, dishwasher safe, and stackable for neat storage, making them a reliable reusable option.
- Material:18/8 stainless steel (food-grade)
- Compartments:5 divided compartments (per container)
- Leak/Seal Features:Clear PP lid (not leak-proof for liquids) — dust protection (note: not fully liquid-tight)
- Dishwasher Safe:Dishwasher-safe
- Portable Use Cases:School, work, picnics, travel, plane/road trips
- Not Fully Microwave-Safe (restrictions):Not suitable for microwave (oven-safe; clear PP lid not microwave)
- Additional Feature:Clear PP dust lid
- Additional Feature:Oven-safe construction
- Additional Feature:Stackable for storage
Bentgo Kids Stainless Steel 3-Compartment Lunch Box
You’ll love how the Bentgo Kids Stainless Steel 3-Compartment Lunch Box is built for busy little ones who need a tough, tidy meal solution. You’ll find it fits ages 3 to 7 and holds four cups so portions stay right. It uses food-grade 18/8 stainless steel with smooth, rolled edges so you can feel safe handing it to your child. Three compartments plus a bonus silicone cup keep foods separate, and airtight seals with locking clips help prevent spills. It’s reusable to cut waste, supports Feed the Children, and cleans on the top rack though hand washing saves the seals.
- Material:18/8 stainless steel (food-grade)
- Compartments:3 built-in compartments + optional silicone container (4th)
- Leak/Seal Features:Airtight seal + locking clips (leak-resistant)
- Dishwasher Safe:Top-rack dishwasher-safe (hand wash recommended to preserve seal)
- Portable Use Cases:School, outdoor adventures, everyday use (kids)
- Not Fully Microwave-Safe (restrictions):Not microwave-safe (stainless steel)
- Additional Feature:Rolled safety edges
- Additional Feature:Charity support program
- Additional Feature:Optional silicone fourth compartment
Leak-Proof Stackable Stainless Steel Bento Lunch Box
For anyone who wants a sturdy, no-nonsense lunch box that stays put in a crowded bag, this leak-proof stackable stainless steel bento is a great pick — especially for busy commuters, parents packing school lunches, and outdoor workers who need food that stays fresh and safe.
You’ll like the premium stainless steel that won’t shatter or change flavors. Two stackable compartments give you 27 oz each, totaling 54 oz, with two removable dividers for portion control. Each lid is leak-resistant and has a steam valve, plus a matching sauce cup. It’s microwave safe up to 6 minutes and dishwasher safe, so cleaning is easy.
- Material:Premium stainless steel
- Compartments:Double stackable layers (2 compartments) with 2 removable dividers
- Leak/Seal Features:Leak-resistant lids on each compartment + steam valve
- Dishwasher Safe:Dishwasher-safe
- Portable Use Cases:On-the-go bento/tiffin for adults (portable, stackable)
- Not Fully Microwave-Safe (restrictions):Microwave safe per listing (reheating up to 6 minutes, ≤1000W) — note exception among the group
- Additional Feature:Double stackable layers
- Additional Feature:Steam-release valve
- Additional Feature:Includes sauce container
Factors to Consider When Choosing Metal Bento Boxes
When you pick a metal bento box, think first about the material grade and safety so you know it’s food safe and long lasting. Next you’ll want to match capacity and compartment layout to how you portion meals, while also checking the leakproof seals and lids for saucy foods. Finally consider cleaning and maintenance because easy care keeps your box hygienic and pleasant to use every day.
Material Grade And Safety
If you care about safety and durability, start by checking the stainless steel grade on the bento box, since that tells you how it will stand up to food, moisture, and time. You should look for 18/8 or 18/10 stainless steel also labeled 304. That grade has higher chromium and nickel so it resists rust and stays non reactive with acidic foods. Avoid unknown or mixed metal alloys because they might leach or corrode. Also inspect lids and seals. Make sure any plastic parts are BPA free and that silicone gaskets are food grade, heat resistant, and removable for cleaning. Finally, check for third party safety certifications like LFGB or FDA compliance and remember stainless steel is not microwave safe.
Capacity And Portioning
Choosing the right capacity and portioning in a metal bento box can make daily meals feel calm and reliable, and you’ll feel confident packing exactly what you need. Pick a capacity that matches your normal appetite: single meals often fit around 850 ml while bigger or multi-course lunches can need up to 1800 ml. Look for multiple compartments or removable dividers to control portions and keep foods separate without extra containers. Think about per-compartment volume too; small sections under 100 to 150 ml suit sauces and sides, while mains usually need 400 ml or more. If you meal-prep, choose stackable or multi-layer designs so total capacity rises yet stays portable. Measure your bag to balance size and fit.
Leakproof Seals And Lids
Because a good seal is the part that keeps your lunch where it belongs, look for a detachable silicone or rubber gasket that sits around the lid and presses tight against the box. You want that gasket to be removable so you can clean it well. Food oils and crumbs hide in creases and wear silicone down over time, and that makes leaks more likely. Also check for multiple locking clasps that squeeze the seal evenly. They cut down pressure points and stop one weak spot from failing. Some lids include a vent or pressure release to stop steam from popping the lid, and that vent must close securely for leak protection. Still, avoid packing lots of thin soup in upper compartments or turning the box upside down.
Compartment Layout Flexibility
When you want a lunchbox that fits your life, compartment layout makes all the difference, so think about how you eat and pack your meals. You’ll like removable dividers because they let you change a large space into two or three sections. That helps with portion sizes and keeps wet and dry foods apart. Fixed multi compartment trays give steady portion control, so you know where your main and sides go. Multiple small compartments work great for snacks and bento style meals, yet they can squeeze bulky items. Stackable or multi layer designs boost capacity without taking more space, but pack carefully so soft foods don’t get crushed. Look for an optional silicone insert or small sauce cup to protect dressings and add flexibility.
Cleaning And Maintenance
You’ll want a cleaning routine that’s simple and reliable so your metal bento box stays safe and fresh for years. Start by removing silicone gaskets and locking clips before washing, since that prevents deformation and keeps seals working. Wash lids and seals by hand with warm soapy water and a soft sponge to avoid scratches and silicone wear. You can put stainless steel bodies in the dishwasher, but place lids and removable seals on the top rack or wash them by hand to extend their life. After cleaning, dry every part thoroughly, paying attention to seals and crevices to stop mold and mineral buildup. For stubborn stains or odors, soak in baking soda and warm water or use a mild vinegar rinse, then rinse well and air-dry.
Portability And Fit
For a lunch box you carry every day, fit and weight matter as much as leak resistance. Check exterior dimensions and total volume so the box slips into your bag without forcing other items aside. If you tote it all day, choose lightweight stainless steel with single wall or thin gauge to cut bulk. Stackable or multi layer designs with detachable compartments help when you need vertical packing in tight spaces, and they save room compared with wide trays. Also inspect closures and clips; low profile locks won’t snag or create lumps against your laptop or papers. Finally, if you carry other items nearby, pick a sealed lid with a flush gasket so protrusions don’t spoil the fit or cause spills.
Additional Features And Accessories
Extra features can turn a good metal bento box into one you actually enjoy using every day. You’ll want detachable silicone gaskets and dual locking clasps so sauces stay put and spills don’t ruin your bag. Built-in or removable dividers, usually one to three, plus small silicone or plastic inner containers help you control portions and keep wet foods separate from dry ones. If you like convenience, check for included utensils or a utensil compartment so you don’t scramble in the morning. Prefer lids with a pressure release or vent valve when you pack warm food; that keeps steam safe without breaking the seal. Finally think about stackable layers and ergonomic handles for extra capacity and easier carrying and storage.