Thanks
WeHeavy for all the good info in regards to mash efficiency.
I have only been brewing for about 2 years off and on. BIAB 3 Gallon batches and bought the 10.5 Foundry about 6 months ago. I just started tacking OG readings for the first time with a refractometer. My first brew reading was only at 60% eff. After concerns I added steps to the mash making it a 90 minute mash, stirring more, and using more recirculated sparge wort. Second brew batch reading was 67% eff (Cream Ale, 12 lbs grain). Another low reading promoted me to search the internet for answers and thus lead me here. Semi-relieved to see similar problems, and also confronted with my lack of knowledge, experience, professionalism in the brew world. I really just wanted to say thanks and add a few personal points that may help others.
I set the unit to 168 and hold for 5 minutes to mash out (recirculated also). Then after pulling the mash pipe out you will notice the water temp on the digital screen drop from 168 to about 140. A number of reasons for the change, but one big reason points to the fact that temps are not the same through the grain.
I also want to say, apart from the efficiency issues, I really really like the all in one system. Anvil seems like a really good company that makes decent products for the price. They offer scratch and dent versions of the Foundry on their site, with no tax and shipping cost. I got the 10.5 for like $290. it came in near perfect condition. It was missing the racking arm and they sent one to me at no cost. Very legit.
I did not buy the recirculation pump. I dont believe its worth the extra equipment and clean up.
I did buy their 7.5 gallon fermenter. Its $130. A little high but super nice (no plastic. spout is a must). I just bought a second one. I would highly recommend it.
I do not have a lot of money to blow on hobbies and have cut many corners in the brew world, but by purchasing the foundry and fermenter you almost need nothing else. A spoon, scale, and a few cleaning supplies. It has made brew life glories as WeHeavy mentioned. I brew ever 3 to 4 weeks, and make complex and creative beers.
(I am an electrician so the 240v options on the unit and adding a 240v receptacle in the corner of the garage was an easy task, but a big bonus.)