Last week we were working through some drum capacity calculations and it was interesting to see the common full coffee bag sizes laid out by origin. Take a look.
|Bag size in kilograms||Bag size in pounds||Origin|
|45.45 kilograms||100 pounds||
|50-60 kilograms||110-132 pounds||India|
|60 kilograms||132 pounds||Brazil
|69 kilograms||151.8 pounds||Guatemala
|70 kilograms||154 pounds||Colombia|
There is, of course, outliers to these numbers above and half-bag sizes, too - like our 35 kilogram half bags available from Colombia producer, Forest Coffee. But its still interesting and if someone has time, they should take a closer look at that 69 kilogram size and let us know how that came to be.
Our roaster lineup at Mill City Roasters is based on a 60 kilogram bag size to catch that broad middle of the road bag size that is more common across origins. When you invert a 60 kilogram bag across our line-up, this is where the numbers fall.
|Roaster Drum Capacity||Fraction of 60 kilogram bag|
|500 gram, MCR500||1/120|
|1 kilogram, MCR-1||1/60|
|2 kilogram, MCR-2D||
|3 kilogram, MCR-3/3D||1/20|
|6 kilogram, MCR-6||1/10|
|10 kilogram, MCR-10||1/6|
|15 kilogram, MCR-15||1/4|
|20 kilogram, MCR-20||1/3|
|30 kilogram, MCR-30||1/2|
|60 kilogram, MC-60||1|