Also, can anyone explain the "Typ" that is listed on each package of flour? I see Typ 500, 550, etc., but have no idea what this means.
This is a weigh of ashes (550 grams) that remains after burning the flour sample. I think you need flour with higher value (850).
URL: typy mąki
pl.wikipedia.org/wiki/Mąka#Typy_m.C4.85ki