Gourmia GAF798 Air Fryer Review

September 27, 2026

271

TL;DR

The Gourmia GAF798 air fryer is a solid 7-quart basket-style option for families who want quick fries, wings, vegetables, reheating, and easy weeknight meals. It crisps food well, cooks fast, has a preheat and a Turn Food reminder, and can serve about four people. However, its temperature stability could be better, and RTINGS notes the nonstick coating is PTFE.

Review at a Glance

The Gourmia GAF798 is a good choice if you want a family-size air fryer but do not want to pay for a premium Ninja or COSORI. It has a 7-quart basket, digital controls, preheat, cooking prompts, and a Turn Food reminder. In my opinion, it can cook for about four people and makes good fried food quickly.

Category	Rating
Best for	Families, fries, wings, vegetables, reheating
Capacity	7 qt / 6.7 L
Main strength	Fast cooking and good crisping
Main weakness	Temperature stability and limited fan speed range
Coating note	the coating type as PTFE
Worth buying?	Yes, if price is good and you are comfortable with PTFE nonstick

BEST VALUE AIR FRYER

Gourmia GAF798 7-Qt Air Fryer

A family-size 7-quart air fryer with a digital touchscreen, 12 cooking presets, guided preheat and turn reminders, and adjustable 90°F–400°F temperature control.

Best for:
Families, everyday meals, wings, fries, vegetables, reheating, and meal prep.

Buy on Amazon

Specifications

The Gourmia GAF798 air fryer is officially listed in the manual as a 6.7 L / 7 QT digital air fryer. I measured the capacity at 7.1 qt / 6.7 L, with a 71.2 in² basket surface area.

Specification	Gourmia GAF798 details
Product type	Digital basket air fryer
Capacity	7 qt / 6.7 L
Basket surface area	71.2 in²
Dimensions tested by me	13.9 in H x 11.2 in W x 15.0 in D
Temperature range	90°F–400°F, depending on mode
Main cooking modes	Air Fry, Fries, Wings, Bacon, Reheat, Bake, Roast, Broil, Dehydrate, Keep Warm
Preheat	Yes
Turn Food reminder	Yes
Glass cooking chamber	No
Coating type tested by me	PTFE
Best use	Family meals, fried-style foods, reheating, frozen snacks

Dimensions

I measured the Gourmia GAF798 at 13.9 inches high, 11.2 inches wide, and 15.0 inches deep. It is a bit bulky, but this size is normal for its capacity.

Temperature Range

Most cooking modes work between 170°F and 400°F. Dehydrate uses a lower range, from 90°F to 170°F, and Keep Warm runs from 150°F to 200°F.

Cooking Functions

The GAF798 has modes for Air Fry, Fries, Wings, Bacon, Reheat, Bake, Roast, Broil, Dehydrate, and Keep Warm. I points out that most modes just change the default cook time. Dehydrate and Keep Warm have different limits and do not use preheat or the Turn Food reminder.

Cooking Performance

The Gourmia GAF798 cooks quickly and usually makes golden, crispy food. It works best with fries, wings, vegetables, and frozen snacks. It is less reliable for delicate foods that need steady heat.

1.Crisping

I found the Gourmia GAF798 made 74.2% crispy fries, with 3.2% overcooked and 22.6% undercooked in their test. So, the crisping is good but not perfect. In practice, refrain from overfilling the basket. For fries and wings, try to use a single layer and shake or turn the food halfway through cooking.

2.Evenness

The GAF798 cooks food evenly if the basket is not crowded. Since some fries were still undercooked in

I tests, it is better to toss the food during cooking instead of just using the preset time.

Best results come from:

Preheating when needed
Spreading food in one layer
Shaking fries and nuggets halfway
Turning wings or larger pieces
Using slightly smaller potato cuts for crispier fries

3.Cooking Speed

Cooking speed is a strong point. My opinion is the Gourmia GAF798 cooks food quickly, even though its preheating is slower than that of some other air fryers. In my test, it reached the target moisture loss in 17 minutes and 15 seconds. This is helpful for weeknight meals. Frozen fries, chicken wings, and vegetables cook faster than in a regular oven.

4.Temperature Stability

Temperature stability is the main weakness. I measured a 6-minute, 19-second recovery time after adding food and a 38°F temperature swing at 400°F . I calls the temperature stability mediocre. This does not ruin regular fries or wings, but it can affect delicate foods like fish, thin vegetables, or baked items where timing is more important.

Preheating

The Gourmia GAF798 has a preheat mode. The manual says that when preheat is on, the air fryer preheats and lets you know when to add food. I measured the time to reach 400°F at 2:59 and noted that the model has an optional preheat mode that tells you when it is ready.

Use preheat for:

Frozen fries
Chicken wings
Breaded foods
Foods that need a crispy outside
Short cook times

Skip preheat for:

Reheating leftovers
Dehydrating
Keep Warm
Longer roasting, where a few extra minutes will not matter.

Real-World Capacity

The 7-quart size seems big andis enough for many family meals. However, the actual capacity depends on the food’s shape.

The basket works well for:

Fries for about four people
A batch of wings
Roasted vegetables
Frozen snacks
Reheating leftovers
One-layer chicken pieces

It does not work as well for:

Very wide foods
Full family meals with main and side dishes together
Large steak cuts
Big batches that need single-layer crisping

My verdict is the 7-quart capacity is enough for about 4 people, but the flat cooking surface is similar to that of some smaller fryers. If you already have a good 6-quart model and want a big upgrade, consider an 8-quart model instead.

Cooking Modes

Air Fry

Air Fry is the main mode to use for fries, wings, nuggets, vegetables, and breaded frozen foods. It runs from 170°F to 400°F for 1–60 minutes. Use this mode if you want crisp edges and faster cooking than a regular oven.

Bake / Roast / Broil

Bake and Roast run from 170°F to 400°F and can be set for up to 2 hours. Broil runs at 400°F for 1–60 minutes. Use Bake for small baked foods, Roast for vegetables or chicken pieces, and Broil for stronger top heat. Since temperature stability is not perfect, check delicate foods early.

Reheat

Reheating is useful for pizza, fries, chicken pieces, and leftovers. It helps bring back some crispness better than a microwave. The Reheat mode runs from 170°F to 400°F for 1–60 minutes. For leftovers, begin with a lower heat so the food warms up without drying out.

Dehydrate

Dehydrate runs from 90°F–170°F for 30 minutes to 24 hours, using the lowest fan speed. I noted that preheat and Turn Food reminder are not available in Dehydrate mode. This mode works for fruit slices or small dehydration tests, but the GAF798 is not the most versatile dehydrator. I found that its fan speed range is limited.

Ease of Use

The Gourmia GAF798 is easy to use. It has a digital control panel, preset buttons, preheat, time and temperature controls, and guided cooking prompts. The manual shows controls for presets, temperature, time, Start/Stop/Cancel, Preheat, and Turn Reminder.

Turn Food Reminder

The Turn Food reminder is a great feature. It tells you to shake or turn food halfway through cooking. The manual says to remove the basket carefully, turn or toss food with non-metal tongs, and put the basket back to keep cooking.

This helps with:

Fries
Wings
Nuggets
Vegetables
Potato wedges
Breaded snacks

Cleaning

The Gourmia GAF798 is easy to clean if you wash it soon after cooking. The basket and crisper tray need the most attention because grease and crumbs collect there. Gourmia 7-Qt model has the basket and crisper tray which are dishwasher-safe, while the GAF798 manual says not to use cooking spray because it may damage the nonstick coating.

Best cleaning routine:

Unplug the air fryer and let it cool.
Remove the basket and crisper tray.
Wash with warm water, dish soap, and a soft sponge.
Avoid metal scrubbers.
Dry fully before putting parts back.
Wipe the inside area if grease splatters.

To make the coating last longer, hand-wash instead of using the dishwasher often, even if the parts are listed as dishwasher-safe.

Materials & PTFE Coating

This is an important section for buyers. I identify the Gourmia GAF798 nonstick coating type as PTFE and says the cooking chamber is not glass. This does not mean the air fryer is unsafe if you use it correctly. PTFE coatings are common in nonstick cookware. Still, you should protect the coating from scratches and overheating.

Use these rules:

Do not use metal utensils.
Do not scrape the basket.
Avoid abrasive pads.
Avoid cooking spray if the manual warns against it.
Replace the basket if the coating peels badly.
Do not heat an empty damaged basket for long periods.

The manual recommends regular cooking oil instead of cooking spray because cooking spray may damage the nonstick coating.

Safety

The Gourmia GAF798 is safe for normal home use if you follow the manual. The main safety hazards are heat, steam, electricity, and basket handling. The manual warns that hot steam may escape when removing the basket during or after cooking. It also tells users to place the air fryer on a stable, level, heat-resistant surface and use caution when removing hot food.

Safety checklist:

Place it on a flat, heat-safe counter.
Leave space around vents.
Do not touch hot metal parts.
Use the handle.
Use non-metal tongs.
Keep water away from the control panel and cord.
Do not overfill the basket.
Let it cool prior to cleaning.
Do not use damaged accessories.

Common Problems

Not Heating

If the Gourmia GAF798 is not heating, check the outlet, plug, basket position, and timer first. The manual says the air fryer may not work if it is not plugged in or if the timer is not set.

Try this:

Confirm the plug is fully inserted.
Test another outlet.
Insert the basket fully.
Set a cook time.
Press Start.
Let the unit cool if it overheats.

Won’t Turn On

If the display does not respond, check the power source and outlet. If the display flashes or turns off quickly, it may be a control or electrical issue, not a cooking mistake. Do not open the appliance yourself. Contact Gourmia support if basic power checks do not resolve the issue.

Irregular Cooking

Uneven frying usually happens if the basket is crowded or the food is not shaken. That is why the Turn Food reminder is helpful.

Fix it by:

Cooking in smaller batches
Shaking halfway
Cutting pieces evenly
Leaving room for airflow
Using the crisper tray correctly

Food Not Crispy

If food is not crispy, it is usually due to excessive moisture or overcrowding. The manual suggests cutting the potato sticks into smaller pieces and adding a bit more oil for crispier results.

Try this:

Pat food dry.
Use a light oil mist.
Avoid cooking spray on the coating.
Preheat for frozen foods.
Increase time slightly.
Cook in one layer.

White Smoke

White smoke usually comes from grease, fatty food, or leftover residue in the basket. If you see a lot of smoke, stop cooking. Let the unit cool, remove extra grease, clean the basket and crisper tray, then start again.

To reduce white smoke:

Clean the grease after each use.
Do not let crumbs build up.
Avoid too much oil.
Use leaner cuts when possible.
Add a small amount of water under the crisper tray only if the manual allows it.

Reliability & Durability

The Gourmia GAF798 is a good value, but how long it lasts depends a lot on how you care for the basket and coating.

The parts most likely to wear are:

Nonstick basket
Crisper tray
Control panel
Handle area
Heating/fan area if grease builds up

For better durability:

Hand-wash coated parts when possible.
Avoid metal tools.
Do not use cooking spray.
Let the unit cool before washing.
Keep vents clear.
Do not overload the basket.
Clean grease before it hardens.

I saw the GAF798 a mid-range model with good frying performance, preheating, and a helpful Turn Reminder, but limited fan-speed options.

Pros & Cons

Pros	Cons
7-quart / 6.7 L family-size basket	Not a glass cooking chamber
Good crisping for fries and wings	coating type as PTFE
Fast cooking performance	Temperature stability is only mediocre
Preheat mode included	Preheats slower than some models
Turn Food reminder helps even cooking	Fan speed range is limited
Good basket surface area	Bulky for small kitchens
Reheat, Bake, Roast, Broil, Dehydrate, Keep Warm	Not the best choice for delicate foods

Who Should Buy It?

Buy the Gourmia GAF798 if you want:

A 7-quart family air fryer
Fast fries, wings, nuggets, and vegetables
Digital controls
Preheat and guided prompts.
Turn on the food reminder.
Good capacity without a premium price
A simple basket-style model

It is a good choice for small families, meal prep, frozen foods, and weeknight dinners.

Who Should Skip It?

Skip it if you want:

A glass air fryer
A PFAS-free ceramic-coated model
A dual-basket air fryer
More stable temperature control
Strong dehydration performance
A compact air fryer for one person
A stainless steel interior cooking chamber

If you are mainly concerned about the coating material, consider a glass or PFAS-free ceramic model instead.

Is It Still Worth Buying?

Yes, the Gourmia GAF798 is still worth buying if you find it at a good price and want a simple 7-quart air fryer for family meals. It cooks fast, crisps well, and has helpful preheat and Turn Food reminders. I rate it as a good air fryer overall, with strong scores in speed and capacity. However, it is not perfect. The main drawbacks are the PTFE coating, temperature fluctuations, and limited fan-speed range. If these matter to you, look for a newer ceramic, glass, or premium model.

FAQ

Is the Gourmia GAF798 a good air fryer?

Yes. The Gourmia GAF798 is a good air fryer for fries, wings, vegetables, reheating, and family meals. I say it makes good-quality fried food quickly and has enough capacity for about four people.

What size is the Gourmia GAF798?

The Gourmia GAF798 is a 7-quart (6.7 L) digital air fryer. I measured it at 7.1 qt (6.7 L).

Does the Gourmia GAF798 have PTFE?

I identify the nonstick coating type on the Gourmia GAF798 as PTFE.

Does the Gourmia GAF798 preheat?

Yes. The GAF798 has a preheat feature. The manual says the air fryer can preheat and prompt you when to add food.

What is the Turn Food reminder?

The Turn Food reminder tells you to shake or turn food halfway through cooking. This helps fries, wings, nuggets, and vegetables cook more evenly.

Is the Gourmia GAF798 dishwasher-safe?

The Amazon listing for the linked Gourmia 7-Qt model says the basket and crisper tray are dishwasher-safe. For longer coating life, hand washing with a soft sponge is still safer.

Why is my Gourmia GAF798 not heating?

It may not be fully plugged in, the outlet may not work, the basket may not be inserted properly, or the cook time may not be set. If basic checks do not fix it, contact Gourmia support.

Why is food not crispy in the Gourmia GAF798?

Food may be too wet, crowded, or not shaken halfway. Pat food dry, use a light oil mist, preheat for frozen foods, and cook in smaller batches.

Does the Gourmia GAF798 dehydrate?

Yes. The Dehydrate mode runs from 90°F–170°F for 30 minutes to 24 hours, but RTINGS notes the fan speed range is limited compared with more versatile models.

Should I buy the Gourmia GAF798 or a newer model?

Buy the Gourmia GAF798 if you find it at a good price and want a basic 7-quart basket model. Select a newer model if you want a viewing window, a ceramic coating, a glass cooking chamber, a dual-basket design, or better temperature stability.

Final Verdict

The Gourmia GAF798 air fryer is a strong budget-to-midrange 7-quart model for fast, crispy family meals. It works best for fries, wings, vegetables, reheating, and everyday air frying. Its biggest strengths are speed, capacity, preheat, and the Turn Food reminder. The main weaknesses are the PTFE coating, average temperature stability, and limited fan speed range.