Use different parts of the lechon
A pot made entirely from lean meat can become dry, while one made mostly from skin and fat may feel too rich.
Using a combination of meat, skin, bones, and a little fat produces better flavor and texture.
Adjust the added oil
Some lechon releases plenty of fat as it reheats. If your pieces are fatty, begin with less cooking oil or render one piece of fat before sautéing the garlic and onion.
If a large amount of oil rises to the surface during simmering, carefully skim off some of it before reducing the sauce.
Give the vinegar time
After adding the vinegar, bring the liquid to a boil and allow it to cook briefly before thoroughly stirring everything together.
This helps soften the sharp vinegar aroma. Keep the pot uncovered during this initial stage.
Taste the lechon sauce first
Some bottled lechon sauces are already very sweet and strongly seasoned. Taste yours before adding the entire amount of brown sugar and soy sauce.
It is easier to add more seasoning later than to correct a sauce that has become excessively sweet or salty.
Add water according to the pork
Dry, meaty pieces may need more water and a longer simmer. Fatty pieces with plenty of skin may release enough moisture and require less.
Add water gradually if the sauce becomes too thick before the pork is tender.
Control the final consistency
The sauce will continue thickening as it cools. Stop reducing it while it is slightly looser than your ideal serving consistency.
If it becomes too thick, stir in a small amount of hot water and simmer briefly.
Let the flavor develop
Lechon paksiw often tastes even better after resting because the pork has more time to absorb the sauce.
If preparing it ahead, keep the sauce slightly loose so it does not become too thick during cooling and reheating.