Air Fryer Apple Turnovers
Air fry puff pastry turnovers filled with cinnamon apples until crisp and golden.

A pastry brush is a small tool, but it has an outsized effect on finish. It is used to apply egg wash for shine, melted butter for flavour and browning, syrup for gloss, or oil to stop sticking. Because you are spreading a thin layer, the brush needs to hold enough liquid to work quickly, but not so much that it floods seams or pools on a tray. The other practical consideration is hygiene: brushes touch raw egg, dairy and sticky sugars, so cleaning and drying matter as much as technique.
In baking, a pastry brush is most often used for egg wash on breads and pastries, brushing melted butter between layers, or applying syrup to cakes and buns. In savoury cooking, it is handy for oiling a grill pan, brushing marinades onto skewers, or greasing tins and ramekins with butter. The brush gives you control around edges and corners where pouring or spooning would be messy. It is also useful when a recipe needs repeated light coats, such as glazing during baking, because you can work quickly without disturbing delicate dough or tearing a surface.
Air fry puff pastry turnovers filled with cinnamon apples until crisp and golden.
Greek baklava baked until golden, then soaked in warm honey syrup to set

Crispy chicken tenders finished with a honey barbecue glaze.
Crisp striftopita filled with feta, eggs and fresh dill
Crisp, golden cheese borek made with filo layers and a feta filling

Greek filo triangles filled with feta, ricotta and dill
Over-brushing is a frequent problem with egg wash and glazes. Pressing hard can deflate risen dough, drag flour into streaks, or pull seeds off the surface. Use a light touch and let the liquid do the work. Another issue is flooding seams, especially on filled pastries: excess egg wash can glue layers together and prevent a clean rise. Finally, watch for loose bristles on natural-bristle brushes. If you see shedding, switch to silicone or replace the brush, particularly for sticky glazes where a stray bristle is hard to spot.
Crisp, golden cheese borek made with filo layers and a feta filling
Golden baked filo and walnut baklava soaked with lemon syrup and orange blossom water
Greek baklava baked until golden, then soaked in warm honey syrup to set
Crisp Greek filo cheese pie filled with feta, ricotta, eggs and dill
Layered filo pastry with pistachios and walnuts, soaked in warm honey and lemon syrup
Air fryer egg rolls are filled with pork, cabbage and carrot.
If you use a brush with raw egg, wash it promptly in hot, soapy water and dry it thoroughly, paying attention to the base where residue collects. Sticky sugar syrups can set like glue, so soaking soon after use prevents build-up that turns bristles stiff. Silicone brushes are often easier to clean and less likely to shed, but they can hold less liquid than natural bristles, so you may need more passes. Whatever the style, avoid leaving a damp brush in a drawer, where odours and mould can develop.
A pastry brush is closely linked to Cooking method, because glazing, basting and greasing steps show up in baking, grilling and roasting in different ways. Difficulty can also help you choose recipes where the brush is a simple finishing touch versus those where careful glazing and handling are central to the result.

Roasted beetroot salad with goat's cheese and rocket

Crispy chicken tenders finished with a honey barbecue glaze.

Oven-baked spare ribs glazed with smoky BBQ sauce

Creamy fish soup with prawns, lemon and dill

Braised chicken with saffron rice and toasted almonds

Egg yolk sweets shaped into balls and rolled in sugar

Sliced raw salmon served with lime and ají amarillo sauce

Stuffed agnolotti tossed in butter, sage and Parmesan
It depends on the job. Silicone is easy to clean and does not shed, but bristles often hold more liquid and spread it more evenly in one pass.
Use a light coat and avoid brushing right up to open seams. If the wash is very thick, a small splash of water or milk can make it easier to apply thinly.
Yes, but sauces with sugar can burn quickly on high heat. Brush in thin layers and apply later in cooking if the recipe suggests it.
Usually from dried sugar syrup, butter or egg at the base of the bristles. Soak and wash promptly after use, and dry thoroughly.
For greasing, a piece of kitchen paper or a bit of butter in the wrapper works. For glazing, a spoon or your fingertips can apply a thin coat, though it is less precise around edges.
A pastry brush is most useful when a thin, even coating matters, whether that is egg wash, butter or glaze. Choose a brush that suits the liquid you are applying, use a light touch, and clean it promptly so yesterday’s syrup does not become tomorrow’s off-flavour.

