Lunch Box – Leak Proof Stainless Steel Lunch Box Large (Black+Blum)
Product Description
1 Litre stainless steel lunch box with secure vacuum-sealed closure—the first 100% leakproof stainless steel box on the market. With Olive band.
Designed for real-life lunches, this smart, plastic-free container is oven-safe, freezer-safe, and built to last. It comes with an adjustable internal divider and stainless steel fork, and is perfect for work, picnics, or prepping ahead.
The vacuum valve creates a tight seal, locking in freshness and preventing spills. Whether you’re packing up a leafy salad, a hearty pasta dish, or meal prepping for the week, this Black+Blum lunch box does it all - sustainably.
Use it for work lunches, leftovers, or weekend adventures—this is the last lunch box you’ll ever need to buy.
Why you'll love it:
Leakproof stainless steel lunch box with vacuum seal
Lunch box for salads, pasta, meal prep or leftovers
Plastic-free, eco-friendly alternative to traditional lunch containers
Oven-safe, freezer-safe, and dishwasher-friendly base
Thoughtful gift for eco-conscious food lovers
Product Highlights:
1 litre capacity – ideal for everyday meals and meal prep
100% leakproof – vacuum-sealed closure with safety valve
High-quality stainless steel – durable, odour-resistant, and stylish
Includes fork & divider – eat with ease, portion with control
Plastic-free & reusable – better for you and the planet
The Black+Blum Stainless Steel Lunch Box Large is the ultimate workhorse of your lunchtime routine—sustainable, simple, and smartly designed.
FAQ’s
How do I use the lid properly?
Pull the valve up (not fully off, just until it meets resistance), then lift the lid gently from the corners. If liquids are inside, lift carefully to avoid spills.
Does this product leak?
No - it’s 100% leakproof when used correctly. Ensure the lid and box rim are clean and dry. Press the lid down firmly on all sides, close the valve, and use the silicone strap for extra peace of mind. Only seal the box once contents are cool—sealing hot food may cause pressure build-up and leaks.
Can this go in the microwave?
No - this product is made from stainless steel and is not microwave-safe.
Can I use it in the oven?
Yes—you can use the base and divider in the oven. However, the lid contains a silicone seal that is not oven-safe and should be removed before baking. Some discolouration may occur with oven use.
Can I freeze meals in it?
Yes - it's freezer-safe. Just remember liquids expand when frozen, so avoid overfilling to prevent damage or leaks.
Is it dishwasher safe?
The base and divider are dishwasher safe. However, wash the lid and silicone strap by hand to preserve the finish. Avoid bleach, chlorine-based cleaners, or abrasive scrubs as these can dull or damage the surface.
Product Description
1 Litre stainless steel lunch box with secure vacuum-sealed closure—the first 100% leakproof stainless steel box on the market. With Olive band.
Designed for real-life lunches, this smart, plastic-free container is oven-safe, freezer-safe, and built to last. It comes with an adjustable internal divider and stainless steel fork, and is perfect for work, picnics, or prepping ahead.
The vacuum valve creates a tight seal, locking in freshness and preventing spills. Whether you’re packing up a leafy salad, a hearty pasta dish, or meal prepping for the week, this Black+Blum lunch box does it all - sustainably.
Use it for work lunches, leftovers, or weekend adventures—this is the last lunch box you’ll ever need to buy.
Why you'll love it:
Leakproof stainless steel lunch box with vacuum seal
Lunch box for salads, pasta, meal prep or leftovers
Plastic-free, eco-friendly alternative to traditional lunch containers
Oven-safe, freezer-safe, and dishwasher-friendly base
Thoughtful gift for eco-conscious food lovers
Product Highlights:
1 litre capacity – ideal for everyday meals and meal prep
100% leakproof – vacuum-sealed closure with safety valve
High-quality stainless steel – durable, odour-resistant, and stylish
Includes fork & divider – eat with ease, portion with control
Plastic-free & reusable – better for you and the planet
The Black+Blum Stainless Steel Lunch Box Large is the ultimate workhorse of your lunchtime routine—sustainable, simple, and smartly designed.
FAQ’s
How do I use the lid properly?
Pull the valve up (not fully off, just until it meets resistance), then lift the lid gently from the corners. If liquids are inside, lift carefully to avoid spills.
Does this product leak?
No - it’s 100% leakproof when used correctly. Ensure the lid and box rim are clean and dry. Press the lid down firmly on all sides, close the valve, and use the silicone strap for extra peace of mind. Only seal the box once contents are cool—sealing hot food may cause pressure build-up and leaks.
Can this go in the microwave?
No - this product is made from stainless steel and is not microwave-safe.
Can I use it in the oven?
Yes—you can use the base and divider in the oven. However, the lid contains a silicone seal that is not oven-safe and should be removed before baking. Some discolouration may occur with oven use.
Can I freeze meals in it?
Yes - it's freezer-safe. Just remember liquids expand when frozen, so avoid overfilling to prevent damage or leaks.
Is it dishwasher safe?
The base and divider are dishwasher safe. However, wash the lid and silicone strap by hand to preserve the finish. Avoid bleach, chlorine-based cleaners, or abrasive scrubs as these can dull or damage the surface.
Product Description
1 Litre stainless steel lunch box with secure vacuum-sealed closure—the first 100% leakproof stainless steel box on the market. With Olive band.
Designed for real-life lunches, this smart, plastic-free container is oven-safe, freezer-safe, and built to last. It comes with an adjustable internal divider and stainless steel fork, and is perfect for work, picnics, or prepping ahead.
The vacuum valve creates a tight seal, locking in freshness and preventing spills. Whether you’re packing up a leafy salad, a hearty pasta dish, or meal prepping for the week, this Black+Blum lunch box does it all - sustainably.
Use it for work lunches, leftovers, or weekend adventures—this is the last lunch box you’ll ever need to buy.
Why you'll love it:
Leakproof stainless steel lunch box with vacuum seal
Lunch box for salads, pasta, meal prep or leftovers
Plastic-free, eco-friendly alternative to traditional lunch containers
Oven-safe, freezer-safe, and dishwasher-friendly base
Thoughtful gift for eco-conscious food lovers
Product Highlights:
1 litre capacity – ideal for everyday meals and meal prep
100% leakproof – vacuum-sealed closure with safety valve
High-quality stainless steel – durable, odour-resistant, and stylish
Includes fork & divider – eat with ease, portion with control
Plastic-free & reusable – better for you and the planet
The Black+Blum Stainless Steel Lunch Box Large is the ultimate workhorse of your lunchtime routine—sustainable, simple, and smartly designed.
FAQ’s
How do I use the lid properly?
Pull the valve up (not fully off, just until it meets resistance), then lift the lid gently from the corners. If liquids are inside, lift carefully to avoid spills.
Does this product leak?
No - it’s 100% leakproof when used correctly. Ensure the lid and box rim are clean and dry. Press the lid down firmly on all sides, close the valve, and use the silicone strap for extra peace of mind. Only seal the box once contents are cool—sealing hot food may cause pressure build-up and leaks.
Can this go in the microwave?
No - this product is made from stainless steel and is not microwave-safe.
Can I use it in the oven?
Yes—you can use the base and divider in the oven. However, the lid contains a silicone seal that is not oven-safe and should be removed before baking. Some discolouration may occur with oven use.
Can I freeze meals in it?
Yes - it's freezer-safe. Just remember liquids expand when frozen, so avoid overfilling to prevent damage or leaks.
Is it dishwasher safe?
The base and divider are dishwasher safe. However, wash the lid and silicone strap by hand to preserve the finish. Avoid bleach, chlorine-based cleaners, or abrasive scrubs as these can dull or damage the surface.
