...another beginner's question for you all.
I think I'm right in thinking that newly-roasted beans are best not stored in an airtight container, e.g. a sealed jar, because they release gasses (CO2?) which taint the flavour.
So, assuming that's right, a couple of questions...
1. How "bad" would it make the beans taste? E.g. would it turn otherwise excellent beans into an awful cup of coffee?
2. If a jar was modified to have one of those one-way valves in it, would that solve the problem? Or would there still be gasses rolling around inside? Would it be better to have some sort of valved bag which can be squeezed?
I'm asking partly because there's a local shop which roasts and sells coffee (at a high price!)..... the coffee tastes pretty awful (it seems to me anyway) and I know they store their beans in sealed jars.
Tom