BLACK + BLUM Microwavable Stainless Steel 30 oz Lunch Box Review
Specifications
| Brand | BLACK + BLUM |
|---|---|
| Dimensions | 2.9 x 7.5 x 5.6 in |
| Capacity | 30 oz |
| Material | Stainless Steel |
| Leakproof | Yes |
| Microwave Safe | Yes |
| Dishwasher Safe | Yes |
Pros
- Microwave safe
- Dishwasher safe
- Fits larger meals
Cons
- Interior non-watertight
- Plastic lid component
- Lid hand-washing
The Verdict
This 30 oz stainless steel lunch box suits people who carry filling meals and want to reheat them without changing containers. Its 7.7 performance score reflects useful leak protection, but the interior is not watertight, so liquids can spread inside. Dishwasher-safe cleaning helps, though the plastic lid component needs hand-washing.
Who it's for: Choose it for larger lunches, leftovers, or meals that need reheating, if you can keep loose liquids contained. Its 8.3 usability score supports simple daily packing and cleanup.
Who should skip it: Look elsewhere if you pack soups, sauces, or separate wet foods and need each area to stay sealed. The 2.9-inch height also may not suit bulky meals or crowded bags.
In-Depth Review
Performance
Performance earns 7.7/10, with the research-based label "Holds temps reliably."
The 30 oz capacity gives this box room for larger meals, while its 7.5 x 5.6 x 2.9 inch shape suits leftovers and filling portions. BLACK + BLUM lists the container as leakproof and airtight, which should help contain moist foods during normal carrying.
That claim has an important limit. The interior is not watertight, so liquid can move around inside if the box tips. It also has no listed insulation type, so it should not be treated as a temperature-retaining container. The stainless steel body is suitable for reheating because the listing marks it microwave safe, but care is still needed with the plastic lid component.
Build Quality
Build Quality scores 8.1/10, matching "Tight seals, sturdy feel."
The body uses 18/8 stainless steel, a practical material for repeated lunch use. Its 30 oz size stays fairly compact at 7.5 x 5.6 x 2.9 inches, so the structure should remain easier to handle than a much larger meal container.
The listed airtight, leakproof lid supports confidence in the seal, but the design is not entirely metal. The product includes a plastic lid component, and that part may need more care over time. The available information does not confirm hinge construction, seal replacement, or long-term resistance to dents. Those unknowns keep the score below the top tier.
Usability
Usability scores 8.3/10 for a "Simple packing flow."
A 30 oz capacity suits a full meal without requiring a tall container. The 2.9 inch height should also make the box easier to slide into many lunch bags. Microwave-safe construction supports direct reheating, which can reduce transfers between containers.
Cleanup is also practical because the listing marks the box dishwasher safe. However, the plastic lid component needs hand-washing, so the dishwasher claim does not cover every part. The interior is not watertight, which matters when packing sauces or other loose liquids. No compartment count is published, so this review cannot confirm separate sections for different foods.
Portability
Portability earns 7.8/10, or "Carries comfortably, stays secure."
The box measures 7.5 x 5.6 x 2.9 inches and holds 30 oz. That wide, low profile should pack neatly for sandwiches, leftovers, or larger portions. Its leakproof listing also reduces concern about spills reaching the rest of a bag.
The stainless steel body may add more weight than a similar plastic box, but the available specifications do not state the product weight. The box has no listed insulation type, so it cannot be credited with keeping food cold or hot during a long commute. Since the interior is not watertight, upright packing remains the safer choice for liquid-heavy meals.
Value
Value scores 8.2/10, with the label "Features worth the price."
The case rests on a useful mix of 30 oz capacity, stainless steel construction, and a compact 7.5 x 5.6 x 2.9 inch footprint. Microwave and dishwasher-safe claims add daily convenience, while the listed leakproof seal supports cleaner transport.
The trade-offs are clear. The interior is not watertight, and the plastic lid component requires hand-washing. There is also no published insulation type or compartment count. For shoppers who want a roomy stainless steel box for reheatable meals, the combination is strong. Those who need true liquid separation or cold retention should look for confirmed specifications in those areas.
Frequently Asked Questions
How much food fits in the BLACK + BLUM Microwavable Stainless Steel Lunch Box?
The lunch box holds 30 ounces, which suits a full meal such as pasta, rice, salad, or leftovers. Its listed dimensions are 2.9 by 7.5 by 5.6 inches, so check your lunch bag before buying.
Can I microwave the BLACK + BLUM stainless steel lunch box?
The published specifications list this lunch box as microwave safe. Remove or follow the instructions for any lid component before heating, and check the product guidance for safe microwave use. Stainless steel containers can heat differently from plastic or glass.
Is the BLACK + BLUM 30 oz lunch box leakproof?
The published specifications list it as leakproof. However, the interior is not watertight, so it may not keep separate foods or liquid fully isolated inside the box. Pack very runny foods with care and keep the container upright during transport.
Can I put the BLACK + BLUM lunch box in the dishwasher?
The lunch box is listed as dishwasher safe, which can simplify cleaning after use. The lid includes a plastic component, and the product information advises hand-washing the lid. Check the care instructions before placing any part in the dishwasher.
Is this BLACK + BLUM lunch box good for taking larger meals to work?
Its 30 ounce capacity fits larger lunches better than a small snack box. The stainless steel body and listed leakproof design can work well for carrying leftovers or a substantial meal. Because the interior is not watertight, it is less suitable for transporting liquid-heavy foods without careful packing.
What is the BLACK + BLUM lunch box made of?
The main material is stainless steel. The lid also has a plastic component, so this is not an all-stainless-steel container. That mixed construction may require different care for the body and lid.
Final Verdict
This is a recommended buy for people who pack larger meals and want a sturdy stainless steel box that can go in the microwave and dishwasher. Its 30 oz size gives it useful capacity for hearty portions. However, the interior is not watertight, so wet foods may need separate packing, and the plastic lid parts require hand-washing.
Choose it if meal size and easy reheating matter more than fully sealed compartments and simple lid cleaning. If that matches your daily routine, this is a sound pick.
BLACK + BLUM Microwavable Stainless Steel 30 oz Lunch Box
As an Amazon Associate, we earn from qualifying purchases.