wait so one of you who says that extract twang doesn't exist says there are tons of good extract beers out there, while the other says they are rare.
Rare compared to less-than-stellarly brewed extract beers. Rare compared to dime a dozen Mr. Beer brews which are always INCREDIBLY old, cheaply made, and always include a high percentage of simple sugar and old yeast. Most brewers who get good at what they're doing eventually move to all-grain. Few stay with extract. Of the brewers I know (usually city brewers) who still brew extract after getting really good, never a shred of "twang" in any of their beers. They taste just like an all-grain brewer's beer. Because they follow proper brewing procedure, and make sure their ingredients are fresh and properly handled.
one says that there are many causes, mainly the processes of the new beginner, yet the other says the number 1 cause is old extract.
You forgot the "of an otherwise well crafted extract beer". Most extract beers are brewed by beginners who have not perfected their process.
both of you agree that old extract will cause a weird flavor, which is completely destroying your own point that extract alone won't cause off flavors. you're both admitting that SOME extract will.
Yes. Old extract provides off flavors. Just like old grain. And old hops. And old yeast. Just like in cooking, if you use stale old ingredients you're going to lose quality of the final product. That's handling. That's not extract in and of itself.
so then what is your definition of old? how old does it have to be before these off-flavors start presenting themselves?
why are they rare because of the reasons mentioned?
because it's hard to get super fresh extract? so then if that's the case, then many, MANY, people could be experiencing this extract twang because it's hard for them to come across fresh extract?
hmmm....lots of people using less than fresh extract, could by why, oh, I don't know, this stupid "extract twang" myth keeps persisting. Or because extract brewers are regularly underpitching, underaerating, fermenting too warm, fermenting in less stable temperatures, allowing their temperature to drop and impacting the reabsortion of intermediary compounds by the yeast, and generally not brewing things according to proper practice. I'm sure it's more the latter than the former.
i don't believe that anybody's arguing that there is definitely something wrong with the off-flavor. but please read over your arguments again. you're both admitting, even though you don't actually want to admit, that the cause CAN come from the extract alone.
Yes, you're saying that there's an off flavor from extract, in all extract beers. Major or not, you're making a case that doesn't hold up. And neither of us have contradicted each other once.
I'll wager money that the supposed off-flavor from extract is one of a few things:
-Boiling LME for an extended period of time (using LME at the start instead of a late addition). This is equivalent to doing an extremely long boil, which is not appropriate for most beer styles. It can create a rich melanoidin character that works in certain beers, but certainly not all.
ie process related, not the extract itself.
-Old extract, stale and oxidized. Even the extract manufacturers admit that particularly LME when left to sit will darken, an oxidation reaction.
-Acetaledehyde from poor fermentation temp control and/or poor pitching rate- Pitch too warm, let it cool down to room temp, and then explode back up with an uncontrolled (or air controlled even in a poorly designed ferm chamber) fermentation, to then fall back down as fermentation slows. That's just ASKING for acetaldehyde. Sound familiar? That's exactly how almost every beginning brewers (and even some AG brewers and folks who should otherwise know better) ferment their beers. Green apple and kind of tart. "Twang".
-Chorophenols. From using tap water untreated, or from using bleach as a sanitizer.
-Using anything other than the lightest extract possible, and then piling on the specialty grains. Plenty of beers with a pound of crystal malt on top of Amber extract. That's overkill on the steeping grains, since the Amber extract would already be full of crystal malts already.
-And then your general fermentation off-flavors from poor yeast handling, poor pitching rate, and poor aeration. Excessive esters, diacetyl, etc.
Extract twang exists as anecdote only. I've never experience an "extract twang" that couldn't be explained by something else.