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
Insufficient bottom heat relative to top heat
Generally acceptedBake environment · from Base is pale while the top looks done
A cold or thin baking surface transfers far less heat to the base than a well-preheated stone or steel.
- Why it fits
- Recorded cause of "Base is pale while the top looks done".
- Rescue it now
- Move the pizza to a lower oven rack or directly onto a preheated stone/steel for the remaining bake time
- Next time
- Preheat a stone or steel for at least 45 minutes, and place the pizza on the oven's lowest suitable rack
Base is pale while the top looks doneHow to get a crispier baseHow to get better browningPizza in a domestic ovenCooking on a pizza stoneHow heat gets into a pizza
Also possible
The stone was under-preheated. Its surface reaches temperature long before its core does, and the core is what supplies heat once cold dough lands on it — a surface-hot, core-cold stone gives up the little heat near its surface quickly and has little behind it.
Strongly supportedEquipment · Cooking on a pizza stone · from Base is pale while the top looks done
- Why it fits
- Applies only if you are using "Cooking on a pizza stone".
- How to tell it apart
- The stone went into an oven that had already reached temperature, or had less than about 45 minutes at full heat.
- Rescue it now
- Leave the pizza in longer and accept a drier result, or move it onto a hotter part of the oven if one exists.
- Next time
- Put the stone into the cold oven, heat them together, and allow a full 45–60 minutes at maximum after the oven signals it is ready.
Base is pale while the top looks doneHow to get a crispier baseHow to get better browningCooking on a pizza stoneHow heat gets into a pizza
The base relies on hot air moving under the basket and up through its perforations. A liner, a crowded basket or overlapping slices stop that air reaching the underside, so the base steams instead of browning.
Generally acceptedWorkflow and timing · Pizza in an air fryer · from Base is pale while the top looks done
- Why it fits
- Applies only if you are using "Pizza in an air fryer".
- How to tell it apart
- The top is coloured but the underside is pale and soft, with a liner, paper or foil under the pizza, or slices overlapping in the basket.
- Rescue it now
- Take out any liner the appliance maker does not call for, spread the slices out so none overlap, and give it a few more minutes; or finish the base in a dry, hot frying pan.
- Next time
- Cook one pizza or a single layer of slices with space around them, preheat the basket if the appliance maker suggests it, and only use a liner the maker allows — never one that covers all the perforations.
Base is pale while the top looks doneHow to get a crispier baseHow to get better browningPizza in an air fryerHow heat gets into a pizza
A thin tray stores little heat. It starts cold, the dough cools it further, and it warms only as fast as the oven air can heat it, so for the first minutes of the bake the base receives little heat from below.
Generally acceptedEquipment · Pizza on a baking tray · from Base is pale while the top looks done
- Why it fits
- Applies only if you are using "Pizza on a baking tray".
- How to tell it apart
- The pizza was built on a cold, thin, shiny baking tray and put straight into the oven.
- Rescue it now
- Slide the tray onto a preheated surface if you have one, or move it to the lowest shelf for the remaining time.
- Next time
- Oil the tray generously so the oil conducts heat into the base, preheat the tray or a second tray beneath it, and choose a tray style rather than a thin round — a bare tray cannot crisp a thin base.
Base is pale while the top looks doneHow to get a crispier baseHow to get better browningPizza on a baking trayHow heat gets into a pizza
The lid thermometer reads dome air temperature, not the stone. On a gas BBQ the air comes up to temperature within minutes while the stone takes at least 30, so the gauge routinely says ready when the surface is not.
Generally acceptedEquipment · Pizza on a gas BBQ · from Base is pale while the top looks done
- Why it fits
- Applies only if you are using "Pizza on a gas BBQ".
- How to tell it apart
- The lid thermometer read the target temperature, but the pizza came off pale underneath after the full expected time.
- Rescue it now
- Close the lid and give it more time; the stone will continue charging as it cooks.
- Next time
- Give the stone a full 30 minutes with the lid closed before the first launch, and measure the stone surface with an infrared thermometer rather than reading the lid gauge.
Base is pale while the top looks doneHow to get a crispier baseHow to get better browningPizza on a gas BBQHow heat gets into a 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.