How to tell whether the butter in the lamp lit before the Buddha is vegetable oil or animal oil?

1. Look at the color, vegetable oil is bluish yellow, and animal oil is white and bright.

2. smell the smell, the vegetable oil is fragrant, and the animals are greasy.

Taste: The vegetable oil is fragrant with grass, and the animal oil is fragrant with meat.

4. Environmental test: the vegetable oil drops on the dining table do not solidify at low temperature, but the animal oil solidifies.