Short Version: Our 12 oz (volume) canning jars hold 9 oz by product weight. Our 16 oz mason (volume) jars hold 13 oz of product weight. Our 8 oz (volume) tins hold 6 oz of product by weight. 

The Long Version 

Hey there! Our jars are all about capacity – y'know, how much they can hold. So, the 12 oz canning jar can actually hold up to 12 oz by volume. And similarly, the 16 oz jar can contain 16 oz by volume. Volume, in simple terms, means the space something or an object occupies or what's enclosed within a container.

Now, here's where it gets interesting. Different things can have different weights. If we stuffed our 12 oz jar with feathers, it would feel super light, but if it's filled with lead... brace yourself, 'cause it'd be crazy heavy. But here’s the kicker—the volume remains the same regardless.

Initially, we used to label based on volume, but we've recently transitioned to follow the candle industry standards, which are all about net weight. How much something actually weighs. The number you see on the label represents the minimum amount in the jar. But hey, good news! We've always been generous, so you typically get more than what’s on the label, never less.