Any experiment is going to leave questions, but unfortunately, not many people or places have the luxury of getting 17 people together many, many times.
That said:
> Things start going downhill after around a couple of weeks off roast
"a couple of weeks off roast" is exactly the test we did. It's reasonable to propose other ages and you could well be right that results would be different.
That said:
> Things start going downhill after around a couple of weeks off roast
"a couple of weeks off roast" is exactly the test we did. It's reasonable to propose other ages and you could well be right that results would be different.