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By Paul Corsetti
You’ve seen them on TV and at your local hardware store! The promise of wood-fire pizza, breads, vegetable and meats are so tempting but then… there’s the price. Having just made an inquiry into one model, I lost interest when quoted $3,500 component price for the smallest model. Looking at the unit I figure about two days to assemble, render and then a few more days before I can use it. Ouch! So how about a real wood-fired pizza oven you can build in a few hours for as little a couple of hundred dollars?
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The secret with great pizza is heat! That’s why it is so hard to create a true Italian style pizza in your home oven. Most ovens top out at about 225C (430F) while a good pizza oven starts at about 275C (525F)! If you want the t the texture and taste your local pizzeria creates, you need to be able to cook your pizza quickly. in fact, in less than five minutes.
The concept of a wood-fire oven is a simple and has been used for millennia. Traditionally, clay and concrete-like binders are used to form an oven chamber. That chamber is designed to retain the heat from a wood fire. The flat oven base of the chamber is both the floor for the fire and the cooking surface.
Materials and process:
Depending on the height you want, you will need 20 – 25 good quality concrete blocks. These are going to support a lot of weight so avoid any blocks that have cracks or chips.
Compressed cement sheeting is immensely strong but also very heavy, dense and difficult to cut. Try to get two sheets of the right size rather than a standard 2400×1200 (8×4) sheet. Here in Australia, sheets are 15mm (5/8″) thick. By using two thicknesses, you end up with an extremely strong floor.
The angle iron will be used to support the brick roof of your pizza oven. As an alternative, consider stacking your roof on compressed cement sheeting. You may still need to use angle iron across the front to prevent your roof from sagging.
Clay bricks will give a much better result than concrete based bricks. Concrete bricks can absorb water and may crack under the high temperatures the oven can produce. While clay bricks can also degrade with constant heating and cooling, they are still much more durable. The best bricks to use are ‘fire bricks’. These bricks are manufactured for us in fireplaces and while a bit more expensive, should last many years.