They are ready and willing to absorb water since they are low on moisture after roasting.
Storing ground coffee in refrigerator.
The problem isn t that there s moisture in your fridge or freezer it s the change in temperature the coffee experiences going into and out of the fridge which results in a build up condensation.
If you do buy ground coffee for the convenience store it at room temperature in an airtight container after it s been opened.
The humidity can cause moisture to infiltrate the packaging.
This is the moisture that the coffee hates so much and that can diminish the flavour.
Do not store coffee in the refrigerator or freezer.
Coffee beans and grounds are seeds and not plants or leaves of the coffee tree.
Store up to a one week supply of whole coffee beans in an airtight canister at room temperature.
Ground coffee can be stored for a week in the refrigerator or two to three weeks in the freezer.
Avoid warm spots such as above next to the oven or in cabinets that get hot from exposure to sunlight or cooking equipment.
When green coffee beans are roasted they lose moisture and start to create sugar through caramelization.
A ceramic canister with a vacuum seal is a good choice but avoid clear glass.
For coffee however storing in the refrigerator is a bad idea.
In most cases storing coffee in the freezer is a waste of time especially if you re a daily drinker.