4 week Primary: Ridiculous!

[BierMuncher]

• 80+ distinct beer styles (according to the BJCP).
• OG’s range from 1028 to 1130
• IBU’s range from 8 to 120
• Within each beer style, OG’s can vary greatly, some as much as 30 points and FG’s as much as 38 points.
• IBU’s can commonly have a 10-15 point range and still be within style. IIPA’s can swing as much as 60 points.

No standard answer exists for any phase of the brewing process. Trust your hydrometer. Trust your eyes, nose and palette. Learn from your experiences.

Keeping a 1030 Mild in a primary for 4 weeks is as unnecessary as keeping an IIPA in for 1 week is likely disastrous.