Sesame oil is sesame oil, which is sesame oil. Sesame is made of sesame, so it is called sesame oil.

Red oil is mainly made of Sichuan morning glory pepper plus vegetable oil other spices (such as pepper, star anise, Sannai, green onion, garlic, ginger, sugar) with a slow fire and refined.

Red oil is Sichuan chili oil.

Pepper oil is hot oil with peppercorns, water and soy sauce, cooked and served with sesame noodles.

There are also more complicated ones. This is a home made.

Nowadays, pepper oil is also available in bottles after extraction.

Pepper powder is pepper flour.