Why do most egg tart molds appear to be blackened?

Why do most egg tart molds appear to be blackened? - Person Holding White Saucer Plate With Teacup

In all the videos of Portuguese egg tart molds I see on Youtube, they all appear to be fully black. Carbon steel doesn't seem to be as dark as that (although it could simply be lighting), and I'm not too sure what sort of reaction would cause metal molds to darken like that.

I first thought that it was aluminum oxide forming on the molds, but from what I can find online that would seem to taint any tart with black residue, so that doesn't appear to be it.






Pictures about "Why do most egg tart molds appear to be blackened?"

Why do most egg tart molds appear to be blackened? - Round Pastry With Fruit Toppings
Why do most egg tart molds appear to be blackened? - Cute calm little girl with bunny ears on head sitting on floor at home and playing with ethnic friend during Easter holidays
Why do most egg tart molds appear to be blackened? - Positive multiracial girls with hear shaped stickers on faces touching cheeks and looking at camera while sitting near wall with egg decorations during Easter holiday



How do you store Portuguese egg tarts overnight?

Refrigerate egg tarts if consuming the next day. Egg tarts can be heated in a toaster oven over medium heat for 8-12 minutes. Cover the top with an aluminium foil to prevent burning. Egg tarts can be kept for 2 to 3 days.

Why do my Portuguese tarts sink?

Separated sugar's a good thing except not all of it finds its way up if there's a lot. Some of it may sink to the bottom of the tart and turn the pastry soggy. How to tackle the problem? By controlling the amount of sugar that separates from the custard mixture.

What is the difference between Portuguese egg tart and egg tart?

I'm using the terms Portuguese Custard Tarts and Macau Egg Tarts interchangeably, but there are some subtle differences. Portuguese Custard Tarts (pasteis de nata or pastel de nata) are sweeter, less eggy, and sometimes dusted with cinnamon.



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