inside tandoor oven

Your Tandoor has a hand crafted inner clay liner.  The clay used to make the liner is of premium quality sourced from a select location in Northern India. The clay is hand crafted into the liner by master craftsmen using century old techniques. The clay is reinforced with natural fibres to form a durable composite structure.  Kept with a little care, your Tandoor will last for many years.

However, as with all clay products the inner clay liner can break if it is mishandled.  When moving the Tandoor on the castors make sure it is on an even surface.  Large jolts when moving the Tandoor may cause the clay liner to break.  Never drop the Tandoor from any height or roll it on its side as this may cause the clay liner to break.

The Tandoor also has a fire cement base.

As the inner clay liner and fire cement base are subjected to high temperatures when the Tandoor is being used they can develop heat induced cracks over time. These cracks are normal, particularly in the fire cement base, and will not effect the operation of the Tandoor (see picture below of the inside a well used Tandoor).

                                                                    

              Clay liner heat cracks    
                              

                                                                                                                                       

                                                                                                                                      

                                                                       


              Cement base heat cracks    



The heat induced cracks can develop even if the Tandoor has not been dropped or mishandled, they are simply due to expansion and contraction effects resulting from the clay/cement being heated and cooled.

There is no need to fill any cracks that develop in the fire cement base.  Should you nevertheless wish to fill these cracks, simply sweep out all the ash and then vacuum out any residual ash in the cracks.  You can make up a standard cement/sand/water mixture (as used to make mortar for laying bricks) and use a spatular to fill the cracks.

Should a large crack (e.g. more than about 3-4mm wide) develop in the clay liner, you may wish to fill the crack with common terracotta clay that you can purchase from your local craft shop or pottery supply shop (the oven will still work fine without filling the crack).  If the crack is filled, allow the fresh clay to air cure for a day or so, then use the Tandoor as normal.

A refractory air set jointing cement can also be used to repair the clay liner or fire cement base (Walker ceramics refractory air set jointing cement PA25).  The refractory jointing cement is particularly effective as it does not shrink when it cures and adheres very well the clay liner and the fire cement base.

The inner clay liner or fire cement base of the Tandoor should never be exposed directly to liquids (e.g. water) when hot.  Never try to extinguish the fire or cool the Tandoor by dowsing it with water.  Such action will lead to catastrophic cracking of the inner clay liner and/or fire cement base. 

The Tandoor should also never be left out uncovered in the rain at any time.  Our Deluxe and Ultima Tandoors come with a weatherproof cover for protection against the elements. The Tandoor lid (when in place) will also to some extent protect the inner clay liner oven from rain.  However, we recommend storing the Tandoor undercover to prevent it from getting wet.  When the Tandoor is not being used, always place the lid on the Tandoor and close the side ventilation door.

 

Heat cracks can develop in the liner

and/or base - these are normal and

will not effect operation of the Tandoor

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Care and maintenance of your tandoor clay oven