Of course it should not be too close. I use the very same carton box since 2019, it survived 40+ brew sessiosn, and it only took a bit of color when I was not careful enough ;) Maybe I should change it for the new one, but this one has good dimensions :D
Answer 1: I do open propane as much to make it burning efficiently to boil as fast as possible. I haven't met any burning issues yet.
Answer 2: uncovered
Answer 3: Boil over happens sometimes, I try to watch it and turn off part of burner just in time. I can burn only one side of burner, which...
keep it simple
https://www.bjcp.org/style/2015/5/5B/kolsch/
I made Kolsch some time ago and it went quite well
Volume : 27.0 L
Qty
name
malthouse
add
Color
4 kg
Malt Pilsner
Weyermann
Mash
3 EBC
85.1 %
500 g
Malt Vienna
Weyermann
Mash
6 EBC
10.6 %
100 g
Malt Wheat
Weyermann
Mash
4...
This year 7 batches only (~27 litres ~ 7 US gallon ~ 6 imperial gallons each)
+ 2 uncounted experimental mini batches of 10 litres, when I've gott too much wort
#42 - India Rice Lager | ABV 4.7%
#41 - Winter dark ale 2024 | ABV 6.2%
#40 - Saison Amber Light Y24 | ABV 5.5%
#39 - SMASH...
You may try using https://beermaverick.com/hops/hop-comparison-tool/ to compare hops profiles
There will be slight difference. More spice and tropical fruits taste and aromas, less citrus and floral. It is not necessarily wrong.
But as you'll put less, there will be generally less taste and...