How to find the right wick

[Hummingbird1]

I’m going to make a candle in a 3 by 3 by 3.5 smooth sided mason jar . Would I look under the medium or large size jar wick guide to find recommendation for a wick ? 

[TallTayl]

It all depends on your wax and fragrance.

 

you will have the best consistent luck buying wicks from candle suppliers that tell you what manufacturer and sizes.  Large, medium and small could be one of thousands of different wicks, all designed for different candle types and sizes.

 

likewise, candle fragrance can vary from source to source. Wick requirements vary along with them.

 

when measuring a candle container, always measure the inside, not the outside of the jar.  And measure the narrowest point as that is where things really matter.  Some jars taper toward the bottom which changes the wicking.

[NightLight]

For every combination in a candle you will have to test wick sizes. You can go by recommendations on candle supply sites as a starting place to find a wick.

To find a wick for your container you have determine what type of wax. Soy wax, paraffin, or parasoy.

There are many types of wicks. After you pick a wax then you can try a wick type. 
Then each fragrance has to be tested. Some fragrances require hotter wicks up, or some lower wicks down.