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Quick Answer
Only oven-safe borosilicate glass — the kind explicitly rated for conventional oven temperatures — is safe to use in an air fryer. Standard glassware, mason jars, drinking glasses, and any glass not marked 'oven-safe' can crack or shatter from the rapid, concentrated heat inside an air fryer basket. When in doubt, use metal bakeware: it heats more efficiently, responds faster, and carries no risk of shattering.
Minimum internal endpoints and required rest periods. Does not validate air-fryer settings or minutes. Whole eggs and shellfish also have specific appearance guidance in the chart.
Source section: Temperature chart: poultry, meat, seafood, eggs and leftovers. Reference checked: .
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Borosilicate glass (sold under brands like Pyrex in the US, or labeled 'borosilicate' on European products) is formulated to handle thermal shock — sudden temperature swings — and is safe in air fryers at the temperatures they produce (up to about 400°F / 205°C). Tempered soda-lime glass bakeware labeled 'oven-safe' is also generally fine, though it has a lower thermal-shock tolerance than borosilicate. Glass that is NOT safe: regular drinking glasses, Mason jars, decorative bowls, glass food-storage containers (most Tupperware-style lids), and any glass not explicitly labeled oven-safe. Even 'microwave-safe' glass is not the same as oven-safe — microwave-safe only means the glass does not absorb microwave energy, not that it can handle dry convection heat.
An air fryer's heating element raises the air temperature very rapidly — from room temperature to 400°F in 3–5 minutes. Ordinary glass cannot expand and contract fast enough to follow this thermal change without developing stress fractures. In a conventional oven the temperature rises more slowly, giving glass more time to adjust. The concentrated hot air in an air fryer is more like a broiler environment than a normal bake, which is why glass that has worked fine in oven recipes can still fail in an air fryer. A shattered glass dish inside the cooking cavity is a serious safety hazard and can damage the basket coating.
For most air fryer applications, a small metal baking pan, a silicone mold, or aluminum foil formed into a tray is the better choice. Metal conducts heat faster than glass, so food cooks more evenly and browns better. Silicone bakeware rated for oven use (usually to 450°F / 230°C) is completely safe in air fryers and is flexible enough to release food without sticking. If you specifically need to see the food from the side — for example, a layered dessert — an oven-safe glass ramekin is acceptable, but verify the manufacturer's oven rating first.
If you have confirmed oven-safe borosilicate or tempered glass ramekins, they work well for small baked dishes, molten lava cakes, egg custards, or individual gratins in the air fryer. Place the ramekin in a preheated fryer (not a cold one) to reduce thermal shock, and never move a hot glass dish directly onto a cold countertop — let it cool on a wooden board or trivet. Check for any micro-cracks or chips before each use; damaged glass is significantly more likely to shatter under heat stress.
Last updated September 5, 2026 · Reviewed by Maks