Ingredient behaviour
Artichokes and other jarred vegetables: the water problem
Why do jarred artichokes and similar vegetables make a pizza wet?
Short answer
Jarred and marinated vegetables are stored in liquid and have absorbed it. On a pizza that liquid comes back out during the bake, and it goes downward. Draining is not enough on its own — they need patting dry, and ideally a brief roast.
What is actually happening
Preserved vegetables sit in brine, oil or a marinade for weeks and equilibrate with it. Draining removes the free liquid from the jar but not the liquid inside the vegetable, which is released as heat breaks down cell structure during the bake. Artichoke hearts are particularly bad because their layered structure traps liquid between leaves. Roasting them briefly beforehand drives off that internal moisture and adds browning that a short pizza bake will not produce.
What it changes
Each claim below is deliberately hedged. PizzaHQ's sensory vocabulary has no “always” — the strongest statement available is “usually”.
Flavour and aroma
Patting dry and briefly roasting before topping often increase savouriness (umami)
Removing water concentrates flavour, and the browning that becomes possible adds savoury depth.
Dimension: Savouriness (umami)
Marinade carried onto the pizza can increase acidity
Most jarred vegetable marinades are acidic, and that acidity transfers to whatever it pools on.
Exception: A well-drained, dried vegetable carries very little of its marinade with it.
Dimension: Acidity
Texture and mouthfeel
Using jarred vegetables straight from the jar usually increase perceived moisture
Absorbed brine or oil is released during the bake and travels into the base beneath.
Dimension: Perceived moisture
What it does not change
Draining does not change the vegetable's compatibility with anything else, and does not affect the crust except through water. Nor does it recover the texture of a fresh artichoke — a jarred one is a different ingredient and remains one.
Where this becomes a matter of taste
The acidity that jarred artichokes bring is wanted by some people as a counterpoint to rich cheese. This is about controlling how much of it arrives, not about removing it entirely.
In practice
- Drain, then quarter, then pat dry between kitchen paper — all three steps.
- A brief hot roast before topping improves both the pizza and the artichokes.
- The same applies to jarred peppers, sun-dried tomatoes in oil, and marinated aubergine.
- If the base is wet only under specific toppings, this is almost always the reason.
Related
Evidence
Generally accepted- The Pizza Lab (column) — Serious Eats
- Modernist Pizza — The Cooking Lab