BeerTools Discussion Forum

I brew all grain and extract. Why do I get butterscotch taste sometimes with all grain but never with extract? Example made a Blonde in full grain and another in extract, same recipe and fermented side by side. Again all grain butter scotch but with the extract. Confused.

The copper pipe inside the counter flow chiller taints the flavour of the chilled beer as it cools. Tastes like copper. I m assuming it is corroded. How do I clean or shall I start again with fresh tube and how do I check this when purchasing copper tube.