I have stored in both glass and HDPE. I prefer glass, but that's my preference. I also like my glass to be darkened - for example, there are some wine bottles that you could store in that are dark. If it has a screw lid, be sure to put some plastic between the lid and the bottle. Most people store in clear glass bottles - I also like to keep a small container of CDS out of the big jar (but in the fridge) and work from that - that way I'm not opening the big jar often. (I call it my "working bottle or jar")
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