A gluten free sign in a pizzeria window is one of the least informative things in food service. It can mean a dedicated prep area and certified flour. It can also mean nothing at all.
If you are ordering for yourself and gluten is a preference, the difference may not matter much. If you have celiac disease, it matters enormously.
Here is how to work out which kind of kitchen you are dealing with.
Start With the Oven
A traditional Neapolitan kitchen runs on flour. Dough is stretched by hand on the same benches all day. Flour becomes airborne every time a ball is opened.
Every pizza goes into one shared wood-fired oven, and that oven is not wiped between pies, because the fire is what cooks them.
Some restaurants build a separate gluten free station with its own tools and surfaces. Many do not. Neither answer is dishonest. The dishonest version is the kitchen that will not tell you which one it is.
Say the Actual Diagnosis
There is a real difference between celiac disease, a wheat allergy, and choosing to avoid gluten, and the kitchen can only help you if it knows which one applies.
Restaurants that take this seriously will answer differently depending on which word you use. The phrase gluten free on its own gets you a vaguer answer than the word celiac does.
Call rather than typing it into an order note. Online notes get missed during a rush. A phone call puts you in front of a person who can walk to the kitchen and check.
What You Can Usually Eat Anyway
Italian menus have more naturally wheat free food than the pizza section suggests.
Salads are the obvious one, as long as you ask for any crostini or crostone to be left off the plate. Simple sides work too, like sauteed spinach, grilled zucchini, roasted peppers, and cremini mushrooms.
Charcuterie boards of cured meat and cheese are fine once the bread is ordered separately. Sparkling water, Limonata, and Aranciata are all safe by default.
Culto Italiano in Bergenfield publishes a page laying this out. The gluten free options at an Italian restaurant are listed with prices, which is more than most kitchens do.
The same page is blunt about the other half. Every pizza base, panuozzo, calzone, focaccia, and pasta on that menu is wheat. There is no version that is not.
The Fryer Is a Second Route
People focus on the oven and forget the fryer.
Calamari, arancini, and mozzarella in carrozza are breaded or floured. They also share oil with other breaded items, which is a second path to cross-contact on top of the flour in the air.
If a kitchen has one fryer, everything out of it is off the table for a celiac diner regardless of what the individual item contains.
Why This Is a Medical Question, Not a Menu Question
It helps to know what is actually happening in the body, because it explains why small amounts matter.
The National Institutes of Health explains that celiac disease is both a long-term digestive condition and an immune one, and that the damage it does lands on the small intestine. Eating gluten is the trigger.
The same page draws the lines between three things people blur together. Gluten sensitivity causes similar symptoms but does not damage the small intestine. A wheat allergy is a different immune reaction again.
That is why a shared oven is a genuine risk for one group and a manageable annoyance for another. Same kitchen, different answer.
Catered Events Are a Different Situation
This is the part most people do not think to ask about.
When a kitchen caters, the menu is built weeks ahead. That lead time lets a chef plan around a guest who cannot eat gluten, rather than improvising during a dinner rush. Weddings, graduation parties, and corporate lunches all come with dietary requests, and they are straightforward with notice.
Say it at the menu stage, not the week of the event.
The Questions Worth Asking
Ask whether there is a separate prep area. Ask whether the fryer is shared. Ask what the kitchen can honestly do today, not what the menu said last month.
Kitchens change. What was possible in the spring may not be possible now, and the reverse is also true. The current answer is always on the phone.
For Culto Italiano, the restaurant line is (201) 648-0111 and the catering line is (917) 325-5619. Ask for the kitchen before you order, and take a straight no as a good sign rather than a bad one.