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STL BIG BITE 5

STEELINE / NUTRI-LOCK
Big Bite 5

Bigger tiers.
Built for real hunger.

The Big Bite 5 is the largest-capacity lunch pack in the Nutri-Lock line — four stainless steel containers ranging from 300ml to 450ml, plus a genuinely sized 570ml salad dabba, all sealed and carried in one insulated pouch.

Containers4 steel + 1 dabba
Main sizes450ml × 3, 300ml × 1
Salad dabba570ml
Seal100% leak-proof
Molded stainless steel lidsMirror-finished interiorsNavy & sky blue dual tone180° detachable clip lockInsulated soft carry pouchBPA-free construction
Capacity, broken down

The largest portions in the Nutri-Lock range.

Four steel containers at graduated sizes, plus a salad dabba big enough to actually count as a fourth dish.

450mlContainer 1
450mlContainer 2
450mlContainer 3
300mlContainer 4
570mlSalad dabba
The build, closely read

What the construction says about how long this lasts.

Bigger containers put more demand on the seal and the steel — here's how it holds up.

Steel sized for real portions

At 450ml, the three larger containers are built for full servings rather than token portions — enough for rice, a curry, or a noodle dish without rationing. The fourth, 300ml container is sized for a side or a lighter dish, and the 570ml salad dabba is large enough to function as a genuine fourth course rather than a garnish tray.

Every container is food-grade stainless steel with a mirror-finished interior, which resists staining from oil and turmeric and makes daily cleaning fast even across five separate pieces.

A seal built for bigger volumes

Larger containers mean more surface area for a seal to fail on — which is where the molded stainless steel lid and 180-degree clip design matter most. The clip distributes closing pressure evenly, so the leak-proof, air-tight seal holds even when a container is filled with a heavier, gravy-based dish.

The soft carry pouch is built to match — structured enough to carry the added weight of four full-size containers without sagging, while still insulating everything inside.

Every detail, explained

What makes up the Big Bite 4.

01

Four graduated steel containers

Three 450ml containers and one 300ml container cover mains, sides, and everything in between, each sealed independently.

02

100% leak-proof, air-tight seal

Every container holds a genuinely air-tight seal, keeping gravies, rice, and liquids contained through the whole commute.

03

Molded stainless steel lids

Durable, warp-resistant lids that hold their seal and their shape well beyond a single season of daily use.

04

180° detachable clip lock

A single clip rotation opens or seals each container — fast, one-handed, and built to outlast simple snap lids.

05

570ml salad / side dabba

A genuinely large bonus container — big enough for a proper salad, extra roti, or a full side dish, not just a garnish.

06

Dual-tone navy & sky blue finish

A cohesive, elegant colourway across all five pieces, distinguishing containers at a glance while looking considered as a set.

07

Mirror-finished interiors

A polished steel interior on every container, simplifying cleaning and keeping the set hygienic across daily use.

08

Food-grade, rust-free steel

Built to outlast disposable containers entirely, with no rusting or degradation even under daily hot-food contact.

09

Insulated soft carry pouch

A structured pouch that holds its shape under the added weight of four full containers while keeping food warmer for longer.

10

BPA-free construction

Every plastic element, including the salad dabba, is BPA-free — food safety built in rather than bolted on.

Where it fits your day

Built for people who don't eat small portions.

The extra capacity across all five pieces opens up more than a standard tiffin can cover.

Full workday

A genuine three-course lunch

Three 450ml containers comfortably fit a curry, rice, and a second dish — enough for a proper mid-day meal, not a snack.

Physically active days

Higher-calorie routines

Larger portions across the board suit people with higher food needs — labourers, athletes, or anyone with a demanding schedule.

Shared meals

Two people, one pack

The combined capacity is generous enough to split between two people for a shared lunch, without either person going hungry.

Salad-forward eating

A real salad course

The 570ml dabba is large enough to carry an actual salad as a full component of the meal, not an afterthought side.

Meal prep

Portioned in advance

Four sealed containers make it easy to pre-portion a day's meals the night before, each dish kept separate and fresh.

Family outings

Picnics & travel

Enough total volume to cover a family picnic or a long day out, with the insulated pouch keeping everything at temperature.

Unboxing

What arrives in the pouch.

×1Soft zipper carry pouch, insulatedFABRIC
×3Stainless steel containers, 450ml, clip-lock steel lidsSTEEL
×1Stainless steel container, 300ml, clip-lock steel lidSTEEL
×1Big salad / side dabba, 570mlBPA-FREE
Where it stands


The difference shows up most in the salad dabba and the largest containers.

AspectBig Bite 4Standard-capacity tiffin
Container sizes3 × 450ml + 1 × 300ml — full servings across the boardUsually 200–250ml per tier — smaller portions
Salad / side dabba570ml — large enough for a real side dishOften under 150ml, garnish-sized only
Seal100% leak-proof, air-tight on every containerOften reliable on smaller tiers only
Best suited forFull-day appetites, shared meals, meal preppingLighter single-portion meals
Keeping it feast-ready

Care that protects the seal at this scale.

Bigger containers mean a bit more surface to look after — the basics still apply.

01

Hand wash the lids

The clip mechanism lasts longest away from repeated dishwasher heat — warm water and mild soap by hand is safest for all four.

02

Dry fully before sealing

Air-dry every container and lid before closing for storage — trapped moisture is the main cause of lingering odour in steel.

03

Skip the steel wool

A soft sponge keeps the mirror finish intact across all three 450ml containers; abrasive scrubbers dull the polish over time.

04

Spot-clean the pouch

Wipe the exterior fabric rather than soaking it — this preserves the insulation and the shape of the pouch under load.

05

Fill hot, not boiling

Warm food is what the seal and lid finish are designed around — very high heat repeatedly can stress the clip's grip over time.

06

Check all four clips

With four containers in daily rotation, run each 180° clip through its motion every few weeks to confirm the seal still holds.

The read

For appetites the standard tiffin was never sized for.

The Big Bite 5 doesn't just add a container — it scales every container up, then adds a salad dabba large enough to matter. It's the pack built for the day you actually need to eat a full meal, not squeeze one into a small box.

Steeline Nutri-Lock Big Bite 4Lunch pack, 4 containers + salad dabba
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