I just finished my first BIAB and was trying to figure out efficiency. I was looking to make a Hoegaarden type beer. My grain bill included

3 lbs of Best Malz Pilsen Malt

3 lbs of Rahr White Wheat Malt

1 lb of Rice Hulls

1/2 lb of Rolled Oats

I heated 10 quarts of water to 130 degrees, held between 120 and 130 for 30 minutes. Added 10 quarts of 170 degree water and held between 150 and 160 for 60 minutes. Sparged with a few quarts and let lauter for 5 minutes or so. (Not exact on the water quantities)

At boil, I added 3/4 of a lb of Amber DME.

I then added 1 ounce of Halertau for 60 minutes

1/2 ounce of corriander and 3/8 ounce of orange peel at 45 minutes

1/2 ounce of corriander and 3/8 ounce of orange peel at 1 minute

My final brix after cooling to 68 degrees was 14.2, OG of 1.059.

I was kind of winging the recipe based on multiple recipes I found online, was hoping for a yield of 4 gallons, but I wound up with a yield of 4.5 gallons

After the fact, I input this recipe on TastyBrew.com recipe calculator and it predicted a starting OG of 1.057

How do I determine my efficiency? I was pleasantly surprised how easy it was. The wort smelled and tasted fantastic, can’t wait to get this into a keg.

Should I expect a better efficiency with a mash tun or is it mostly used for larger batches. I don’t think I could fit much more in a brewpot. I was using a 24 quart pot.

Thanks for any help.