One revolution I have realized in baking is the recent trend to start talking about weight and not volume in recipes for certain dry ingredients like flour. Three cups of fluffy sifted flour is a lot less flour than three cups of densely packed flour. Same with brown sugar, or wondering if you need a "flat teaspoon" vs. a "heaping teaspoon" of something.
There is a Polish website https://kalkulatorkuchenny.pl/, where you type, say, 1 teaspoon of sugar (łyżeczka cukru) and it will convert it to mass, volume, spoon and number of glasses. I'm pretty sure, there is an English language alternative, but didn't find any
For using volume measurements (weighs are still superior tho) flour shouldn't be packed in but spooned into the measuring device and leveled with the back of a knife but brown sugar should be packed into the measuring device.
In recipes, they'll call for a heaped teaspoon or tablespoon, everything else is implied to be leveled, especially leavening agents like baking powder/soda. There's also an understanding that certain things don't need as much precision, like adding in flavoring extracts.
I also do really like the nice even 25° increments that recipes align to for farenheight.
I assume flour can have a lot of moisture weight to it, which may change depending on the location or season. Weight is still the better measure, but still not perfect.
you would be a bit peeved as well if one guy in a lecture hall with 150 people constantly asked you to convert every measurement in your talk to something only that guy understands.
Okay but that has literally never happened. That's an absurd scenario you just proposed, you understand that, right? That's just a situation you made up to make yourself mad, like a toddler.
Not op, but for small quantities, volumetric is usually more accurate. I know a teaspoon of yeast weighs about 3 grams, but most cheap kitchen scales can't really be trusted until you're measuring 10 grams or or more. A teaspoon of dried oregano is so light it probably doesn't even register on most cheap kitchen scales.