Oven Kraft by Convertech

Fiber-based baking & food packaging

Bake, freeze and ship in one engineered tray.

G-Flute is our proprietary ultra-thin corrugated board, built for continuous industrial production lines. It holds its shape through baking, freezing and transport, and lowers the cost of every unit that leaves the line.

Croissants baked in an octagonal Oven Kraft G-Flute corrugated tray

0.8 mm

Board thickness

−28 → +220 °C

Operating range, freezer to oven

Oven · Microwave

Bake and reheat in the same tray

Food contact

Certified materials and production

Produced under Convertech’s certified quality and food safety management systems.

oven kraft iso_9001
oven kraft iso_22000
CER_FDA

Solutions

One material platform, three industrial applications.

Each line starts from the same G-Flute board and is engineered for a specific process, a specific product and a specific production environment.

Loaf cake baked in a rectangular Oven Kraft G-Flute baking tray

Bakery

Baking trays for continuous production

Loaf, rectangular, individual and specialty formats that run on filling lines, go through the oven and reach the shelf in the same tray.

Strawberries, grapes and cherry tomatoes in Oven Kraft corrugated produce trays

Fresh produce

Shelf-life packaging for fresh produce

Treated corrugated board that manages the gases fruit releases in storage and transport, to reduce waste between grower and shelf.

Oven Kraft G-Flute tray with a metallized barrier liner for food processing

Meat & seafood

Slim Packing bases for automated lines

Fiber-based bases for meat, fish, poultry and deli. They run on existing automated lines and finish with shrink or vacuum packing, replacing the plastic tray.

Bakery

Formats built around how bakeries actually produce.

We qualify each format against the tray it replaces, on the customer’s own line, with the same filling, oven profile and packing step.

English loaf cake baked in an Oven Kraft rectangular corrugated tray

Uniform trays for high-volume continuous lines, wet and dry batters.

Deep individual Oven Kraft G-Flute baking tray

Small formats matched to depositors and automatic filling lines.

Cake baked and presented in an Oven Kraft winged G-Flute tray

One tray from oven to shelf, serving as baking form and retail display.

Pastries baked in an Oven Kraft G-Flute tray with handles

Traditional cakes and desserts baked in dedicated paper forms.

Total cost of production

Measured on the cost of the line, beyond the price of the tray.

Every pilot runs against your current tray and reports the full picture per baked unit. You see the numbers before you commit to volume.

What a line trial measures

Unit

A

Tray price

Landed cost against the incumbent tray

per unit

B

Labour time

Handling, de-panning and packing steps removed

sec / unit

C

Reject rate

Deformation, leakage and release failures

% of output

D

Process stability

Behaviour across filling, oven profile and cooling

run report

Σ

Saving per baked unit

The figure the decision is made on

per unit

Close-up of the cut edge of an Oven Kraft tray wall showing the fine G-Flute corrugation
Close-up of the metallized barrier liner inside an Oven Kraft G-Flute tray

G-Flute technology

A thinner corrugated structure that performs like a rigid form.

G-Flute combines an ultra-thin multi-layer construction with functional barrier technologies. The result is a fiber-based board that is light, rigid, and engineered for heat, moisture and grease.

Structure

Ultra-thin multi-layer board

Barrier

Functional layers for liquids & grease

Temperature

−28 °C to +220 °C

Material

Fiber-based, from certified papers

Partner with us

Three ways to work with Oven Kraft.

Whether you bake at industrial scale, distribute packaging, or manufacture it yourself, there is a commercial model built for your business.

For industrial producers

Direct supply

Recurring supply for bakeries and food manufacturers, qualified on your line.

For packaging distributors

Authorized distribution

Add G-Flute trays to your range and serve your existing customers and territories.

For packaging manufacturers

Manufacturing & licensing

Use G-Flute in your own production through material supply, co-manufacturing or licensing.

Product catalog

Standard formats, ready to trial.

A selection from the catalogue. Every format is available for line trials.

Backed by Convertech

Oven Kraft is the packaging innovation brand of Convertech.

Convertech imports, slits, rewinds and converts industrial paper for corrugated board producers, food and beverage manufacturers and printing houses. That supply chain and paper expertise stand behind every Oven Kraft product.

Industrial paper supply

Slitting & rewinding

Converting

Certified papers

ISO 9001

ISO 22000

Oven Kraft G-Flute trays in kraft, white and metallized barrier finishes

One board · three finishes: kraft, white, metallized barrier

Request samples

Test G-Flute on your own line.

Tell us what you produce and where. A packaging engineer will reply within two business days.

01

We match formats to your product and equipment.

02

Samples ship to your plant for a line trial.

03

You receive a cost-per-unit comparison report.