Judy said:
I did a batch yesterday. 82°C for 8 hours, using pork collar cuts in the brine. Then I pan grill for about 2-3 minutes on all sides.
Results:
Texture - too soft, fats taste weird and soft
Taste - predictably, the taste is obviously more intense due to the brining cum cooking
Appearance - you can't tell the difference (compared to wok or oven roasting) after the final charring/grilling phase
If I were to do it again, I may need to knock down the temp.
I am yet to be convinced though that SV way can make a better Char Siew then the wok. There must be some science to it, but the brine cum oil (half-boiling, half-frying) wok method, along with the final charring (roasting) phase produces such good results. And it is convenient - the meat stays in one place till cooked, along with the resultant sauce. A kilo is done in 45 mins.
That said, I am sure the Sv method is useful for those who do not have a wok, proper stove or do not prefer the cooking management needed to keep it moist when roasted in the home oven.