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Pfizer vaccine was initially recommended to be stored at -60C to -80C for transportation. Is the vaccine still at a liquid state at this temperature or is it frozen solid?
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If I steep two tea bags in hot water, rather than one, will there be double the "tea" (and hence caffeine), or is there some sort of saturation point?
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AskScience AMA Series: I'm Dan Riskin: author, bat biologist, host of Animal Planet's Monsters Inside Me and co-host of Daily Planet. I wrote my PhD on bats and since it's Bat Week, I thought I'd take a swing at some of your questions. (See what I did there?)
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