First AG batch done but a couple ?s

[mcfarlandp]

Saturday I brewed my first AG batch using the BIAB method; It was a NB cream Ale batch. I started out with 8 gallons of water and mashed in at 150 and held that temp for about 50 out of the 60 minutes. I dropped the thermometer and after that the temp read about 140 so I added heat, but the needle did not move for the longest time, after about 10minutes , assuming I was in the ballpark I proceeded to attempt to achieve some form of mash out.

With out a thermometer, I heated for another 15 minutes on about medium heat then pulled the bag and drained until dripping mostly stopped, then proceeded to boil as normal. Here are the results as I know thus far:
Pre-boil efficiency: 82.91 based on a calculator on Brewers Friend
Post boil volume; approx. 5.5 gal OG 1.040 exactly what the recipe called for.

I was surprised that there was so much grain particles floating around, I expected a very clean wort using a fine voile bag; Is this normal for BIAB ?

Knowing that my efficiency was good and I hit the gravity should I be OK or is there still a possibility of off flavors due to my lack of temp control half way through?

By the way Fermentation is the most aggressive I have seen; using safeale US 05 it started fast and furious within four hours and it is still rocking.

 

[jtakacs]

you'll probably see the results of high fermentables in your wort with an aggressive fermentation because of the low mash temp. i'd imagine your brew will just be a little drier and you'll get higher attenuation than what you were originally shooting for.

never did BIAB, but particles in the wort are perfectly normal.. actual pieces, protein, break out, hops, etc... it all gets crazy soupy in the most awesome of ways.