Jeff,
Correct, sumberged means all veggies under brine. Heres some good pics
http://thehotpepper.com/topic/49650-1st-time-fermenting-think-i-might-have-screwed-up/
Sumberged vs caped and swirl/shake--You can do either, or both. Both will offer the highest level of protection for you on your ferments. But not required. Think of it this way....whats the best way to keep oxygen from reaching my veggies. In its simplest form your two goals are to get lacto present and keep oxygen out...thats it. Submerged=everything under brine=no oxygen. Capped=no oxygen once ferment starts and CO2 is produced, the only thing to remember here is pressure will need to be released either through airlock or by "burping" the jar.
The shaking/swirl you mention, (shaking if capped, swirl if using airlock) some do but it is not required. They only reason some prefer to do this is to keep anything forming on the top layer like a kham cake. Scroll down and you see one here
http://thehotpepper.com/topic/34677-first-fermented-sauce/
perfectly normal, and signs all is good, alls you got to do is scape it off before you process. Some dont want to deal with it and shake or swirl the jars throughout the process to keep it from forming.
For brine recipes...metric is not nessasary. Chilimonsta nailed it here in the fermenting 101.... Ive never done my ferments by the weight method (no scale). Cover all your stuff with this formula and you good to go!
A strong brine(5.4%) is generally recommended for fermenting cucumbers/pickles as they are prone to mold growth.
A 3.6% brine should be used for all other vegetable lacto-fermentation recipes, such as:
peppers, carrots, garlic, mixed vegetables, sauerkraut, beets, green beans, broccoli
Brine Formulas (by volume measurements):
5.4% brine formula = 6 tablespoons salt to 8 cups water.
3.6% brine formula = 4 tablespoons salt to 8 cups water.
2.5% brine formula = 1 teaspoon salt to 1 cup water
(use 2.5% for supplementing sauerkraut & beets which are considered self -brining)
Hope that clears the water for you.
GG91,
Boiling does kill most but there are some bacteria that I believe can survive the boil. Unlikly but true. One of those safe but not absolutly safe things...kinda like your towel I mentioned in the other thread. Risk is very small but still there nontheless. Also their are some that choose to omit boiling to preserve the benificial bacteria in their sauces.
Good to see more fermenters joining the party! Cheers!