Given the background description of some cooking related query, summarize the question into a title

Q: I have an enameled cast iron dutch oven. I thought the pamphlet that came with it said not to heat the cast iron dry -- I could be imagining things, though.Part OneSo, am I supposed to put the oil in the dutch oven and then put it on the (cold) stove and then turn on the stove to low heat and then to medium? If I do this, will the oil evaporate -- I thought I experienced that once?Or am I supposed to preheat the dutch oven (starting on low and then going to medium) and then throw in the oil and heat it?I'm asking this question because I don't want to ruin my le creuset french oven.Part TwoAnd how do you know when the oil is hot enough? This recipe says until it is almost smoking, but how do you know when it is about to smoke? And don't all oils have different smoke points. This recipe calls for vegetable oil, which I assume can be canola.

A: When to heat oil in dutch oven?
****
Q: I've heard that using a wooden chopping board for cutting meat is not very hygienic as it is a porous material. If that is the case, then what would a chopping board ideally be made out of when chopping meat?

A: Best chopping board material for meat
****
Q: I received several different pepper (spice) for christmas. One of them is a white pepper. Whenever I use (very) little of this white pepper in my dishes, the odor/flavor is very dominant cutting out all other flavors. How can I use this pepper without losing the other flavors?

A:
How can I use white pepper without having the odor dominate the food flavour?
****