How to Store Coffee Beans and Keep Them Fresh

Why does the roast date matter?

A roast date tells you when the coffee was actually roasted. A best by date only tells you when the seller thinks it will be past its prime, often many months later.

According to the National Coffee Association, whole beans stay fresh for about 1 to 3 weeks at room temperature once the bag is open. That is why it pays to buy coffee with a clear roast date and to buy only what you will drink in a week or two.

Roasted coffee does not usually spoil in a safety sense. It simply loses aroma and starts to taste stale and flat.

What is degassing, and should coffee rest after roasting?

Roasting creates carbon dioxide inside the bean, and fresh coffee releases it for days and weeks afterward. This is called degassing. Researchers at the Zurich University of Applied Sciences describe this gas as an indicator of freshness that also affects extraction, crema and flavor.

Very fresh coffee can hold so much gas that it brews unevenly. The National Coffee Association suggests letting beans rest 2 to 3 days after roasting before grinding. Espresso is especially sensitive to that gas, so some people like to wait a little longer for espresso.

That gentle bloom of bubbles you see when you pour water on fresh grounds is degassing in action, and it is a good sign.

Whole bean or ground: which stays fresh longer?

Whole bean, by a wide margin. Grinding exposes far more surface to air, so ground coffee goes stale faster. The National Coffee Association lists about 1 to 2 weeks for ground coffee at room temperature, compared with 1 to 3 weeks for whole beans.

For the best cup, buy whole beans and grind right before you brew. Even an inexpensive burr grinder makes a bigger difference than most fancy coffee makers.

If you do not have a grinder yet, ask for your coffee ground for your brewer and buy smaller amounts more often.

What is the best way to store coffee beans?

Coffee has four enemies: air, moisture, heat and light. Keep it away from all four.

• Use an airtight, opaque container. Clear jars look nice but let in light that dulls flavor.
• Keep it at room temperature in a cool, dark cupboard, away from the oven, the dishwasher and sunny windows.
• Buy small amounts, enough for one to two weeks.
• Grind just before brewing.

Should you freeze or refrigerate coffee beans?

This is one of the most debated questions in coffee. The National Coffee Association notes that experts disagree. Coffee absorbs moisture, smells and tastes from around it, and ordinary containers let in enough air to cause condensation in the fridge or freezer burn in the freezer.

Here is a balanced take:

• The fridge is usually the worst choice. Whole beans last only about 2 weeks there, and they pick up odors.
• The freezer can work for longer storage, about 3 to 4 months, if the container is truly airtight. Take out only what you need, ideally a week's worth at a time, and put the rest back before condensation forms.
• Chilling helps most in humid climates, which is worth knowing here in Southwest Florida.

Most of the time, the simplest answer is best: buy fresh coffee in small amounts and drink it within a few weeks.

Why does roasted to order coffee taste better?

Coffee that sits on a shelf for weeks or months has already lost much of what made it special. Roasting to order flips that around. Our founder, Maria Montero, roasts every Aviadora order in small batches in Naples, Florida, after you place it, so your beans start their life with you, not in a warehouse.

The easiest way to always have fresh coffee is a subscription. Choose weekly, every 2 weeks or monthly delivery to match how much you drink, and save 10 percent. Start with Natural Reposado or Semi-Washed, or browse all our coffee.

Frequently asked questions