Ask 'em to set the mill gap to .040 or so, or have them mill it twice and you'll get mid-80's, their default will give you about 74% max if you batch sparge.
Ask 'em to set the mill gap to .040 or so, or have them mill it twice and you'll get mid-80's, their default will give you about 74% max if you batch sparge.
Setting the mill at .040 is not the answer. That number is a moving target. What is more important is the crush not the setting. Currently a good crush is around .032 but that will change after tomorrow.
We use a barley crusher and it need some rutine matenence tomorrow.
The last batch I got from them was horrible. I ended up with 58% efficiency (should have crushed it more with a rolling pin prior to mashing). I just ordered two more batches and put on the special instructions to give it a better crush. I got the shipment in yesterday and the crush looks spot on for 75% efficiency or so. I'm brewing this weekend so we'll find out - but it looks good.
As Forrest said, mills do require constant adjustment especially when used as much as a shop requires. The crush is going to vary with any shop you buy from but it should get you around 70% efficiency consistently.
I got about 71% on my first All Grain attempt with their crush. I just got my second kit in today and the crust looks ALOT better. I will post updates as soon as I brew.