How Much Coffee Should You Buy at a Time?

You open a bag of coffee you bought a few weeks ago, take a sniff, and... it just smells like nothing much. Flat. Boring. You know it tasted incredible when you first opened it. So what happened?

Coffee goes stale faster than most people expect. And the answer to how much coffee should you buy at a time comes down to one simple thing: freshness.

Why Coffee Goes Stale (And Faster Than You Think)

Once coffee beans are roasted, the clock starts ticking. The oils and compounds that create all those beautiful flavours begin to break down through oxidation. Within a few weeks, the bright, complex notes you love start fading into something flat and generic.

This matters even more with specialty coffee. Those delicate tasting notes like citrus, stone fruit, or chocolate are the first to disappear. If you're buying quality beans, you want to actually taste what makes them special.

The general rule? Coffee is at its best within two to three weeks of roasting. After that, the decline is noticeable. After six weeks, even well-stored beans start tasting like they belong in a different category entirely.

How Much Coffee Do You Actually Go Through?

Before you can figure out how much coffee should you buy at a time, you need to know your habits. Here's a quick guide to help:

• A single cup of filter or plunger coffee uses roughly 15-18g of beans
• One cup a day means you'll go through about 105-126g per week
• Two cups a day brings you to around 210-250g per week
• A standard 250g bag lasts most one-cup-a-day drinkers about two weeks

If you're making coffee for two people, double those numbers. It adds up quickly, and that's actually a good thing. It means you're getting through your beans while they still taste fresh.

The Two-to-Three Week Sweet Spot

Here's the simplest advice: only buy as much coffee as you'll drink in two to three weeks. That keeps you inside the peak flavour window from roast date.

This is why when your coffee was roasted matters just as much as what coffee you buy. A bag that arrives to you only days after roasting gives you the full window to enjoy it at its best. Compare that to beans that have already been sitting on a shelf for weeks or months before you even pick them up.

For most people, that means buying one or two bags at a time, every couple of weeks. Simple, predictable, and your coffee always tastes the way it should.

What About Stocking Up to Save Money?

It's tempting to buy in bulk, especially if you find beans you love. But there's a real trade-off. If the second half of your stash tastes noticeably worse than the first, you're paying for flavour you'll never actually enjoy.

A better approach is to set up a regular ordering rhythm so fresh beans arrive when you need them. Some roasters, including The Folk Roaster, make it easy to reorder or set up a routine that works for your household.

If you do want to keep a spare bag on hand, store it sealed in a cool, dark cupboard. Avoid the fridge or freezer. Moisture and temperature swings do more harm than good. And once you open a bag, aim to finish it within that two-week window.

Finding Your Perfect Buying Rhythm

The best way to figure out your ideal amount is to simply pay attention for a couple of weeks. Track how many cups you make each day and note when you finish a bag.

Once you know your rhythm, it becomes second nature. Some people go through a 250g bag in a week. Others take a full fortnight. There's no wrong answer, as long as you're finishing your beans while they're still tasting great.

Here are a few scenarios to help you plan:

• Solo, one cup a day: One 250g bag every two weeks
• Solo, two cups a day: One 250g bag per week, or one 500g bag fortnightly
• Couple, one cup each: One 250g bag per week
• Household of coffee lovers: Two or more bags per week, depending on how many cups everyone drinks

Start with a single bag and adjust from there. If you're running out too fast, add another to your next order. If beans are lingering past two weeks, scale back a little.

Why Freshness Changes Everything

When you get the buying amount right, something shifts. Your morning coffee consistently tastes the way it's supposed to. No more disappointing cups from stale beans. No more wasted bags.

At The Folk Roaster, every bag arrives to you only days after roasting. Whether you're starting with something approachable like the Stamp Blend or exploring a single origin like our Colombia Single Origin, the key is buying what you'll actually drink in the next couple of weeks.

Keep it simple. Buy fresh, drink fresh, and every cup will be worth savouring.