I use BS3. I plugged it in and that’s definitely not a lawnmower beer range. It will be very pale because you have no darker malts in it. If you want to color it you can use a bit of carafa SPECIAL II which is very dark but dehusked so it won’t leave roast flavors in your beer. Use very little.
My efficiency is very high so I calculate all my recipes at 80% efficiency. Adjust yours as necessary. Your amount of wheat is so negligible I wouldn’t even bother. For a kolsch I’m kinda old school and would likely use 2-3 lbs but maybe you want less. With wheat there’s zero need for carapils in that beer but if you really want to use it I wouldn’t use more than 2 ounces.
Your bittering charge is a bit much for a kolsh IMHO but again…your beer. Depending upon your efficiency this should get you something close to 4-4.5%ABV. If you want it lower, reduce the amount of pilsner and/or wheat.
Use or adjust as you see fit but here’s what I’d do:
Estimated OG: 1.044 SG
Estimated Color: 2.4 SRM
Estimated IBU: 20.0
7 lbs Pilsner Malt (Avangard) (1.7 SRM) Grain 1 86.2 % 0.55 gal
1 lbs Wheat Malt, Ger (2.0 SRM) Grain 2 12.3 % 0.08 gal
2.0 oz Carapils (Briess) (1.5 SRM) Grain 3 1.5 % 0.01 gal
0.35 oz Hallertau Magnum [14.00 %] - Boil 60.0 min Hop 4 15.0 IBUs -
1.00 oz Tettnang [4.50 %] - Boil 10.0 min Hop 5 5.0 IBUs -
1.0 pkg SafAle German Ale (DCL/Fermentis #K-97) [23.66 m Yeast 6 - -
Here’s a light lager I brewed and mentioned above. My buddy loved it as did a few of his friends. This was for 10 gals so you’d want to essentially cut everything in half or scale it down to 5 gals in BS.
Bottling Volume: 10.75 gal
Estimated OG: 1.035 SG
Estimated Color: 2.9 SRM
Estimated IBU: 12.7 IBUs
Brewhouse Efficiency: 80.00 %
Est Mash Efficiency: 81.5 %
Boil Time: 60 Minutes11 lbs Avangard Best Malz Pilsner Malt (1.9 SRM) Grain 1 77.5 % 0.86 gal
1 lbs Acid Malt (2.0 SRM) Grain 2 7.0 % 0.08 gal
1 lbs BEST Vienna (BESTMALZ) (4.6 SRM) Grain 3 7.0 % 0.08 gal
1 lbs Corn, Flaked (1.3 SRM) Grain 4 7.0 % 0.08 gal
3.0 oz Carapils (Briess) (1.5 SRM) Grain 5 1.3 % 0.01 gal
0.75 oz Premiant [7.50 %] - Boil 60.0 min Hop 6 11.2 IBUs -
1.00 Items Whirlfloc Tablet (Boil 15.0 mins) Fining 7 - -
0.50 oz Premiant [7.50 %] - Boil 5.0 min Hop 8 1.5 IBUs -
2.0 pkg German Lager (White Labs #WLP830) [35.49 ml] Yeast 9 - -