Yup, don't have any figures to hand but I'd be comfortable betting that cold brew has more caffeine than a regular filter, which has a fair bit more than an espresso (assuming regular size cup of filter).
@mmccarthy started
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Yup, don't have any figures to hand but I'd be comfortable betting that cold brew has more caffeine than a regular filter, which has a fair bit more than an espresso (assuming regular size cup of filter).