Bulk is cheaper per kilo and only worth it if the coffee stays fresh long enough to drink.
The arithmetic
A kilo bag saves perhaps 20 to 30% over four 250 g bags.
A household drinking two cups a day at 15 g each uses around 900 g a month. That works.
One drinking two cups at the weekend uses 250 g in two months. The last half of that kilo will be flat, and the saving is gone.
The rule of thumb
Buy what you will finish in four weeks, or a little more if you will freeze it.
Freezing makes bulk work
Freezing genuinely halts staling, if done properly:
- Divide into weekly portions before freezing
- Airtight — a vacuum bag or a good zip bag with the air pressed out
- Freeze once. Repeated thawing and refreezing causes condensation, and condensation ruins coffee
- Grind straight from frozen. Do not thaw first — cold beans grind more uniformly
The other bulk problem
Variety. A kilo of one coffee is a month of the same coffee. Part of the pleasure is trying things.
The practical position
Bulk for a house blend you drink daily; small bags for the interesting things. That is what most people converge on.
Last reviewed 8 August 2026