[bumby]

"It's entirely possible" isn't the way to think about estimating risk because it assumes the risk goal is zero (ie any risk > 0 means the outcome is "possible"). A dose greater than LD50 means "more probable than not" of dying, absent additional information, which is a more appropriate framing.

Similarly with caffeine content "can be". All kinds of variables like roasting time affect the dose But the semi-standardized dose for a cup of coffee is about 100mg. Related to your link, they are a much larger cup of coffee for comparison. If you normalize it to the standard coffee size, it comes to 100mg caffeine, so right in line with what would be expected.