Campfire is an very delicate wy of cooking and requires some practice. Coal is highly required for campfire which trekkers can take them along while trekking. Below are basic things that you will need for campfire
1) Campfire utensil. This can be easily available in any market
2) Coal
4) Matchstick
To start campfire, put coal inside campfire utensil and light it. Then continuously blow air to ignite all the coal. This may take at least 15 minutes if you do not have any other material to burn coal quickly. If you don't blow continuous air, then coal will settle down and hence it will not lighten up.