It is important to store coffee properly so that it stays fresh and delicious for as long as possible. Coffee, in both whole bean and ground forms, deteriorates quickly when exposed to oxygen, light, moisture, and unfavorable temperatures. Coffee can also soak up odors from neighboring pantry items and then these odors will get transferred to your brewed cup of coffee. You can avoid these problems by storing coffee beans or ground coffee in an opaque, airtight container in an area that is not too moist and has a constant temperature.
Storing Coffee at Room Temperature
1Store your coffee in an airtight container.
One of the biggest enemies of fresh-tasting coffee is oxygen. Exposure to the air causes coffee beans, and especially ground coffee, to go stale very quickly. Invest in an hermetically-sealed container made for storing coffee, or at least use a container with a heavy airtight lid.
Airtight containers are also ideal for preventing coffee from absorbing neighboring odors and discouraging insect and mold growth.
Some common airtight containers you can use include canning jars, Tupperware, and Ziplock bags
2 Choose an opaque container. Light causes coffee beans and grounds to go stale quickly. This problem is easily remedied by storing it in an opaque container rather than a clear glass or plastic vessel.
There are a wide variety of airtight containers made of metal, ceramic, and opaque glass that are great for storing coffee.
If you insist on storing your coffee in a transparent container, it is best to store the container away from light, for example in a pantry or cabinet
3 Keep your coffee in a dry environment.
You may not have a great degree of control over the moisture level in your kitchen pantry or cabinets, but remember that coffee will keep best in a dry environment. Try to avoid storing coffee beans in a damp basement or other area that is very moist.
If you do need to store coffee in a moist area, keep it really well sealed. Also, move it out of the area before opening the packaging, so the moisture doesn't get to the beans
4 Keep humidity and temperature conditions constant.
It's important to keep coffee's temperature and humidity levels constant, so don't move it around to different areas of your home that have vastly different conditions. For instance, don't store it in a really warm cupboard and then move it to a cold basement. Coffee will rapidly deteriorate if storage conditions vary constantly