Pizza troubleshooter
Choose what you saw — up to three things — and, if you know them, what you baked on, the style and the bake. PizzaHQ ranks the likely causes from its 57 documented symptoms, 137 recorded causes and 36 equipment-specific branches, and for each one says why it fits, how to tell it apart from its neighbours, what you can still rescue, and what to change next time.
Ranked causes
Most likely
Cold or frozen topping placed centrally without allowing time to come up to temperature during the bake
Generally acceptedToppings · from Topping in the centre remains cold while the rest is done
A short, hot bake is calibrated to cook toppings that start at room temperature; a topping starting cold needs measurably more time or heat to reach the same internal temperature.
- Why it fits
- Recorded cause of "Topping in the centre remains cold while the rest is done", ranked 1 of 3 by PizzaHQ's editors.
- How to tell it apart
- The topping went on straight from the fridge or freezer, and it is cold even where thinly spread.
- Rescue it now
- Return the pizza briefly to a hot oven, or finish the centre specifically under a broiler if the rest is already done
- Next time
- Bring cold toppings to room temperature before use, avoid piling any topping unusually thick at the centre, and use adequately preheated equipment with real thermal mass
Topping in the centre remains cold while the rest is doneHow to balance toppings betterPizza in an air fryerCooking frozen pizza
Topping piled more thickly at the centre than the bake time accounts for
Generally acceptedToppings · from Topping in the centre remains cold while the rest is done
The centre of a pizza is usually where topping naturally accumulates most heavily; a thicker mass takes longer to heat through than a thin scatter.
- Why it fits
- Recorded cause of "Topping in the centre remains cold while the rest is done", ranked 2 of 3 by PizzaHQ's editors.
- How to tell it apart
- The topping started at room temperature, but the centre pile is noticeably deeper than elsewhere and only that thick part is cold.
- Rescue it now
- Return the pizza briefly to a hot oven, or finish the centre specifically under a broiler if the rest is already done
- Next time
- Bring cold toppings to room temperature before use, avoid piling any topping unusually thick at the centre, and use adequately preheated equipment with real thermal mass
Topping in the centre remains cold while the rest is doneHow to balance toppings betterPizza in an air fryerCooking frozen pizza
Also possible
General centre-of-pizza underbaking, the same effect that causes a soggy centre on thin baking equipment
Supported, with regional variationEquipment · from Topping in the centre remains cold while the rest is done
On a thin peel, screen, or pan, the centre is the last part of the pizza to receive full heat, affecting toppings there as much as the base itself.
- Why it fits
- Recorded cause of "Topping in the centre remains cold while the rest is done", ranked 3 of 3 by PizzaHQ's editors.
- How to tell it apart
- The base beneath the cold centre is also pale or underdone, on a thin peel, screen or pan.
- Rescue it now
- Return the pizza briefly to a hot oven, or finish the centre specifically under a broiler if the rest is already done
- Next time
- Bring cold toppings to room temperature before use, avoid piling any topping unusually thick at the centre, and use adequately preheated equipment with real thermal mass
Topping in the centre remains cold while the rest is doneHow to balance toppings betterPizza in an air fryerCooking frozen pizza
How this works
Every cause shown is one PizzaHQ has already documented, either on a symptom page or as an equipment-specific branch. The troubleshooter does not invent causes; it ranks the documented ones against what you told it.
A cause starts from its recorded evidence confidence and its editorial rank within its symptom. An equipment-specific cause for the equipment you used rises sharply, and causes for equipment you are not using are set aside. A kind of cause (bake environment, fermentation, toppings…) that also explains another thing you saw rises again — one explanation for two observations is more likely than two separate faults.
If you name a style, its recorded equipment fit, bake temperature and bake time are compared with yours; a bake far outside the style's range, or equipment PizzaHQ records as a compromise for that style, raises the heat and equipment causes and says why.
Assumptions
- Causes are bucketed — most likely, also possible, less likely — rather than given a percentage; the underlying ranking is additive and every addition is listed under 'Why it fits'.
- 'How to tell it apart' is the observation PizzaHQ records as distinguishing that cause from the symptom's others.
- Bake temperature and time only count when a style is chosen, because they are judged against that style's recorded range.
Limitations
- Only documented symptoms can be diagnosed. If what you see is not listed, the closest symptom page is the better starting point.
- Equipment-specific branches exist where equipment genuinely changes the answer; most dough-stage problems have none, by design.
- A ranking is a starting point for checking, not a verdict — the distinguishing observations are there so you can confirm or rule out each cause yourself.