2, hand balance: aluminum fritters are very empty and light in weight, while non-aluminum fritters are heavier and more affordable.
3. Look at the color of the fritters: the fritters made of aluminum are very red and bright, like transparent oil, while the fritters made of aluminum are golden yellow in appearance, which looks very strong and does not absorb oil.
4. After standing for two hours, observation: the aluminum fritters are very soft and collapse, and a lot of oil emerges from the bottom of the fritters. Without the aluminum fritters, the appearance, shape and taste are the same golden, and there will be no oil under the fritters.