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Latest Tip's & How To's

Latest Tips
How To's

How to repair interior cracks on your clay pizza oven

Heating a wood-fired oven will create small natural cracks and dilatations to appear on the interior of your clay oven. This is a completely normal and natural process due to the thermal dilatation of structures and does not affect the normal functioning of the oven. These natural cracks and dilatations can be seen in many structures such as buildings, bridges or chimneys.

Ensuring that you cure your oven when its new or if the oven has not been used for a while or if it’s damp, is the correct way to progressively heat the interior of the oven, so the claydome adapts better to the changes in temperature and for any humidity to disappear before use.  After the curing process has been completed, one of the most typical types of cracks that may appear, are fine hair line cracks on the base and walls of your Fuego wood-fired oven.

How To Repair Interior Cracks On Your Clay Pizza Oven

We must stress that these cracks are only cosmetic and will not impact on the performance of your oven. If you cannot live with the look of them, here’s our step-by-step guide on how to repair all internal cracks of your Fuego wood-fired oven:

1. If it’s a hair line crack, start by opening the crack with the help of a screwdriver, until you have a crack wide enough to be able to fill it. For larger cracks, ensure you remove any loose debris of clay and keep any larger pieces so you can stick them back up. The recommended joint thickness is 3-5mm.

How To Repair Interior Cracks On Your Clay Pizza Oven

2. Brush or blow any excess of dust from the crack.

How To Repair Interior Cracks On Your Clay Pizza Oven

3. Wet the opened crack with a sponge to ensure the mortar mix sticks correctly.

How To Repair Interior Cracks On Your Clay Pizza Oven

4. Ensure you use a quality ready mixed refractory mortar of over 1200°C.

How To Repair Interior Cracks On Your Clay Pizza Oven

5. Using a spatula, fill the crack with the refractory mortar, ensuring you spread it evenly. If you have any large loose pieces of clay, spread the mortar on the open crack (recommended joint thickness is 3-5mm) and sit the piece on top, ensuring the edges are well sealed with mortar.

How To Repair Interior Cracks On Your Clay Pizza Oven

6. Drying and hardening will be helped by the application of gentle heat as soon as the work is completed. The setting time is 24 hours at 20°C (increasing temperature will reduce the setting time). Once dry, rub the area with a damp sponge in circular movements until it blends with the rest of the dome finish.

How To Repair Interior Cracks On Your Clay Pizza Oven

8. Repeat the process with any other cracks that may appear.

How To Repair Interior Cracks On Your Clay Pizza Oven

WARNING
We recommend that you cure your oven if it gets wet or you haven’t used it for a while in order to progressively heat the interior and exterior of the oven so the joints and structures adapt better to the changes in temperature and for any humidity to disappear before use.

Joe Botham, Owner of Baratxuri Restaurant (Ramsbottom)

My Fuego wood fired pizza oven...

“Our Fuego wood oven has transformed our restaurant! As a piece of kit, it is extremely versatile and controllable, allowing us to roast all of our meats and vegetables in the wood burning oven as well as using it as a charcoal grill during service. The flavour of everything coming out of the Fuego clay pizza oven is incredible due to the amazing smoky, charred tones added to the smell and taste of everything that’s cooked in it. It is not expensive to run as all the kiln-dried wood we use heats the wood fired pizza oven pretty quickly and it retains its temperature really well, only needing to add logs to the fire a few times over the course of service.”

Joe Botham, Owner of Baratxuri Restaurant (Ramsbottom)
Claire & James, Owners of Thrush Nest Luxury Holiday Cottages (York)

My Fuego wood fired pizza oven...

“We wanted a traditional wood oven that ticked lots of boxes, for us it had to be made of brick for the authentic feel, have amazing functionality and great quality. Our Fuego clay pizza oven ticks them all. Our pizza nights are such a fantastic feature for the guests that stay in our holiday cottages and it’s a great way of bringing friends and family together for making those special memories. Highly recommended”

Claire & James, Owners of Thrush Nest Luxury Holiday Cottages (York)
Dominic Reeve, Owner Lord Stones Country Park (North York Moors)

My Fuego wood fired pizza oven...

“The traditional methods used within its construction and the unrivalled ability to retain heat have thoroughly impressed us. It has been a welcome addition to our BBQ and live music events. We cannot recommend the Fuego brand enough and it has been extremely popular with our chefs and customers alike.”

Dominic Reeve, Owner Lord Stones Country Park (North York Moors)