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Buying guide · 2 min readCoffee beans vs ground coffee: price, freshness and what to buy
Whole beans are usually cheaper per kilo and always fresher. Whether that is worth it depends on one purchase.
The grinder is the whole argument. Buy beans and you get a lower price per kilo and a fresher cup, but you also have to own something that turns them into coffee, and that one purchase is where the honest disagreement lives. Whether it pays off for you depends on how much coffee you get through and how you brew it.
Which is cheaper?
Beans, usually. Like for like (same brand, same blend, same pack size) whole beans come in a little cheaper per kilo than the pre-ground version, because grinding is a step the roaster otherwise pays for. The bigger effect is pack size: beans are far more commonly sold in 1kg bags, and pack size dominates price per kilo. Ground coffee tends to top out at 500g in supermarkets, so it rarely reaches the cheapest tier.
Cheapest whole beans per cup
Prices are the last we fetched and can move. As an Amazon Associate we earn from qualifying purchases. It never changes the order, which is always cheapest per cup first.
Cheapest ground coffee per cup
Prices are the last we fetched and can move. As an Amazon Associate we earn from qualifying purchases. It never changes the order, which is always cheapest per cup first.
The grinder changes the arithmetic
A decent burr grinder is the entry fee for buying beans at all. Hand grinders start around £30 and are genuinely good at that price; electric burr grinders worth owning start higher. Blade grinders are cheap and produce dust and boulders at the same time, which no recipe fixes.
Say beans save you 5p a cup over the equivalent ground coffee. A £40 grinder then pays for itself in 800 cups, which is a bit over a year at two a day. That is a real payback, but it is not a fast one, and it only holds if you were going to buy the more expensive small bags of ground anyway.
What you actually gain from grinding fresh
- Aromatics. Ground coffee loses most of its volatile aroma within days of grinding; whole beans hold it for weeks.
- Control. Grind size is the main lever you have over extraction, and pre-ground coffee has already pulled it for you, usually to a medium setting that suits nothing perfectly.
- Espresso specifically. Pre-ground espresso is a compromise; the machine cannot correct for a grind that is wrong for its basket.
If you brew with a cafetière or a filter machine, pre-ground coffee is much less of a compromise than it is for espresso. Buy beans for espresso first; the rest is a smaller upgrade.
So which should you buy?
| If you… | Buy | Because |
|---|---|---|
| Pull espresso at home | Whole beans | Grind control is the difference between a good and a bad shot |
| Use a cafetière or filter | Either | Pre-ground is a modest compromise; buy on price per kilo |
| Drink under two cups a day | Ground, in small packs | A big bag of beans will go stale before you finish it |
| Want the lowest price per kilo | Whole beans, 1kg | Large bags are where the price per kilo actually falls |