Bentoheaven Steel My Heart 40 oz Stackable Bento Box — Two-Tier Adult Lunchbox, Leak-Resistant & Includes Utensils

The Bentoheaven Steel My Heart is a two-tier, 40 oz adult bento box designed to hold a full, portion-controlled meal with separate compartments, a leak-resistant silicone seal, and reusable utensils.

If you want a compact lunch container that organizes mains, sides and dressings without mixing flavors or taking up a lot of fridge or desk space, the Steel My Heart bento delivers. It uses a Japanese-style two-tier layout (two 20 oz containers), a removable divider and a small dip cup so you can carry sauces and wet foods without contaminating the rest of the meal. The wood-grain lid gives a polished look for work or school, and the unit is made of lab-tested, BPA-free materials that are microwave- and dishwasher-friendly when used correctly.

How much food will this bento box hold for an adult?

This set provides 40 ounces of total capacity divided into two 20 oz tiers — enough for a main course plus sides or snacks. Its size prioritizes balanced, portion-controlled meals rather than oversized portions. Before buying, check the product footprint to confirm it fits your bag or fridge.

• Two stackable containers: 20 oz each (40 oz total)
• Overall dimensions: 7.3 × 3.9 × 4.1 inches
• Removable divider lets you split a tier into two portions
• Includes a small dip cup for dressings or sauces

Is the Bentoheaven Steel My Heart leakproof and suitable for saucy foods?

The bento box is designed to be leak-resistant when the silicone-sealed lid and air-vent plug are properly closed, making it appropriate for dressings, yogurt and many saucy dishes. For very loose liquids, keep the box upright during transport and ensure the plug is pressed firmly into place to secure the seal.

• Silicone-sealed lid with built-in air-vent plug
• Press the plug down until it seats to lock the seal
• Keep very liquid foods upright for extra caution
• Not a replacement for a dedicated fully liquid-tight jar

How do I clean and use the bento box safely?

The materials are lab-tested and BPA-free. The containers are microwave-safe when used without the lid, and the components are dishwasher-safe on the top rack for convenient cleaning. Remove the silicone parts and strap before washing to extend their life.

• Microwave-safe with lid removed
• Dishwasher-safe (top rack recommended)
• Remove silicone seals and vent plug for washing
• Hand-wash to prolong the wood-grain lid finish

What extras come with the bento box and who benefits most from them?

Every Bentoheaven Steel My Heart includes a full reusable utensil set (fork, spoon, knife, chopsticks), a sealing strap and a 30-recipe e-book to jump-start meal prep. The brand also supports Feeding America, so purchases contribute to charitable food programs.

• Complete utensil kit: fork, spoon, knife, chopsticks
• Sealing strap for extra security in transit
• 30-recipe e-book for varied lunches and meal ideas
• Purchase supports Feeding America

Who is this for? The Bentoheaven Steel My Heart is aimed at adults who want an organized, stylish lunch solution for work, school or travel — especially those who prefer portion-controlled meals with separate compartments for wet and dry items. It suits commuters, meal-preppers, office workers and students who need a compact container that looks presentable on a desk and cleans up easily. If you need a truly liquid-tight thermos for soups, pair this bento with a dedicated leakproof jar for maximum versatility.