Leakproof Lunch Boxes

100% Leakproof Lunch Boxes — Buyer's Guide

Which leakproof lunch box is right for you?

• A compact leakproof pot for a snack or dip → Seal & Go Snack Pots (2 x 100ml)
• Leakproof pots sized for a sauce or dressing → Dressing Pot Pair (2 x 50ml)
• A single-portion leakproof lunch → Clip & Seal Lunchbox – Small (800ml)
• A full lunch, with a divider for two foods → Clip & Seal Lunchbox – Medium (1.2 litre)
• A big lunch or a batch-cooked portion → Clip & Seal Lunchbox – Large (2 litre)
• Three leakproof canisters in graduated sizes → Twist & Lock Leakproof Trio (250ml / 500ml / 700ml)
• A microwaveable bowl for soup, noodles or leftovers → Lunch Bowl – Medium (600ml)
• Meal prep and fridge storage, with a fully microwave-safe lid → New Prep & Store – Small (650ml) or Medium (1 litre)

How does "leakproof" actually work?

There are three different sealing systems across this range, and it's worth knowing which one you're buying. The Clip & Seal Lunchboxes and Twist & Lock Trio use a removable food-grade silicone gasket, held shut by clips or a twist-lock lid — the seal is mechanical, so it holds regardless of what's inside or how it's carried. The Lunch Bowl and New Prep & Store use a different method: a press-down lid that creates an airtight vacuum, similar to a vacuum-sealed jar. The Seal & Go Snack Pots and Dressing Pot Pair take the simplest approach — a snug silicone lid sized to fit a small pot exactly. All three are genuinely leakproof; they just get there in different ways.

Leakproof at any temperature — or only once food's cooled?

This is the detail most leakproof claims skip over, so we won't. The Clip & Seal range, Twist & Lock Trio, Seal & Go Snack Pots and Dressing Pot Pair are sealed by their gasket or lid regardless of temperature — hot soup, straight from the pan, seals just as well as a cold salad. The Lunch Bowl and New Prep & Store are different: their vacuum seal only fully forms once food has cooled to room temperature, since steam and heat prevent the vacuum from setting. If you're planning to pack something hot and seal it straight away, the Clip & Seal or Twist & Lock ranges are the better choice; if you can let food cool first, the vacuum-sealed options work just as well.

What sizes are available?

Sizes span a wide range. At the small end, the Dressing Pot Pair holds 50ml per pot and the Seal & Go Snack Pots hold 100ml each — both suited to sauces, dips or toddler portions. The Clip & Seal Lunchbox comes in three sizes — 800ml, 1.2 litres and 2 litres — with the Medium the only one to include a removable divider as standard (the Large doesn't come with one, though a spare divider can be bought separately). The Twist & Lock Trio covers 250ml, 500ml and 700ml in one set. The Lunch Bowl holds 600ml, and the New Prep & Store spans 650ml and 1 litre in this collection, with a 2 litre option also available.

Are leakproof lunch boxes dishwasher, oven and microwave safe?

Mostly yes, with a few differences worth knowing. The Clip & Seal range and Twist & Lock Trio are dishwasher and freezer safe, and oven or microwave safe once the lid is removed. The Seal & Go Snack Pots and Dressing Pot Pair are dishwasher and freezer safe, and oven safe up to 200°C with the lid off, but not designed for the microwave. The Lunch Bowl is dishwasher safe (top shelf) and freezer safe, with a glass base that's oven and microwave safe on its own — the steel lid needs to come off first. The New Prep & Store goes a step further: its steel base is engineered to be microwave safe in its own right, so the whole container can go in the microwave with the glass lid on or off, as well as the dishwasher (top rack), oven and freezer.