Blending of oil increase rancidity more?

Blending of different oil can increase rancidity ?
Especially blending of mustard oil , pure coconut oil,pure olive oil can increase rancidity more fast?

Generally depends on oil quality.; if you blend low quality oils you will certainly get a material that is prone to spoilage( rancidity), than those of high or good quality oils
Further oils high in unsaturated fatty acids are prone to rsncidity…
Some saturated oils like coconut oils will become spoiled due to the formation of lauric acid.

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It depends on oil type and oil quality. if your oil quality is good, then blending does not impact in rancidity. however, need to take in account about saturated and unsaturated oils.

Ok thank you