Most air fryers on the market use plastic or non-transparent materials for their cooking baskets and housings. A smaller number use glass. The choice of material affects more than you might expect: how well you can see what is cooking, how easy the appliance is to clean, and what the cooking environment is actually made of.
This article breaks down how glass and plastic compare across the things that matter in daily use.
How Most Air Fryers Are Made
The basket or drawer inside a standard air fryer is typically made from metal with a non-stick coating, set inside a plastic or powder-coated exterior. You put food in, close the drawer, and cook without being able to see inside until you pull the basket out to check.
That design is functional. But it has limitations that become apparent once you start using the appliance regularly.
The Visibility Difference
The most immediate difference between a glass and plastic air fryer is whether you can see what is happening while food cooks.
With a glass cooking vessel, you can watch the food throughout the process. You can see when it is browning, when the colour is right, when it looks done. You do not have to open the appliance, release heat, and interrupt the cook to check.
With an opaque basket, you are estimating. You open it partway through, check, close it again. For experienced cooks this is manageable. For anyone still building confidence in the kitchen, that guesswork adds real friction to the process.
Cleaning: Glass vs Plastic
Glass is non-porous. It does not absorb grease, odour, or colour from food. After cooking, a wipe or a rinse is usually sufficient. Borosilicate glass, the type used in professional and laboratory cookware, is also dishwasher-safe and resistant to thermal shock.
Plastic and coated metal components absorb more over time. Grease can build up in the texture of a plastic housing. Non-stick coatings on baskets can scratch and degrade with repeated use and cleaning. Over months, they become harder to clean thoroughly and start to look and perform differently.
Glass stays consistent. It looks and performs the same way across hundreds of uses. Coated components typically do not.
Heat Resistance
A common concern about glass in cooking is whether it handles heat safely. Borosilicate glass is specifically engineered for thermal stability. It is the same material used in Pyrex and in scientific glassware. It handles the temperatures involved in air frying without issue.
Standard glass would be a different matter. Borosilicate is not standard glass. Its thermal expansion properties are low enough that it resists cracking from rapid temperature changes, which is what makes it suitable for cooking.
What About Safety?
This is where material choice becomes more than a matter of convenience. Some non-stick coatings used in cookware contain PTFE or PFAS compounds, sometimes called forever chemicals. These are considered stable at normal cooking temperatures, but concerns exist around higher heats, scratched coatings, and long-term exposure.
Glass has no synthetic coating and therefore no associated chemical concerns. It is an inert material. What goes in cooks without a coating as a variable. Understanding what PTFE and PFAS are and why they matter in cookware is worth doing before you choose an air fryer.
Durability
Glass can break. That is the trade-off that comes up most often in this comparison, and it is worth taking seriously.
Borosilicate glass is more durable than regular glass, but it is not indestructible. Dropping it on a hard floor can break it. In this, it is similar to a ceramic plate or a glass baking dish, things most kitchens already use and manage without incident.
Plastic components scratch and degrade over time in ways that are less visible but arguably more consequential. A scratched non-stick coating changes the cooking surface in ways you cannot fully see. These are slow changes that happen across months, not sudden ones.
The Bottom Line
Glass and plastic air fryers are not just different materials. They are different experiences. Glass gives you visibility during cooking, easier cleaning, and no coating concerns. Plastic is lighter, more familiar, and typically cheaper upfront.
For daily cooking in a kitchen where you care about what goes into your food and how easy the appliance is to maintain, glass is the stronger long-term choice.
If you are also thinking about storage in a small kitchen, The Best Air Fryer for a Small Singapore Kitchen is worth reading alongside this.
CrispGo by Durra uses borosilicate glass as its primary cooking vessel. If you want to see how it compares in practice, take a look at thedurra.com.
