How many coffee beans will fill a gallon jar?

It's impossible to give an exact number of coffee beans that will fill a gallon jar without more information. Here's why:

* Bean Size: Coffee beans come in various sizes depending on the variety and roasting level. Larger beans will take up more space than smaller ones.

* Bean Shape: The shape of the beans also affects how they pack together. Some beans are more elongated, while others are rounder.

* Jar Shape: A gallon jar's shape can vary. A tall, thin jar will hold a different number of beans than a short, wide one, even if they have the same volume.

* Packing Method: How tightly the beans are packed will significantly impact the total number that fit.

To get a rough estimate:

1. Measure your jar: Determine the volume of your gallon jar.

2. Estimate bean volume: Research the average volume of a coffee bean (this will vary).

3. Calculate: Divide the jar volume by the estimated bean volume.

However, this will still be a very rough estimate. The best way to find out is to experiment!