Just like the Qi Blood Pill, currently within the association, only top-grade True Qi Pills can be refined.
However, unlike the Qi Blood Pill, even with a skill level reaching the Perfection Realm, the probability of refining a top-grade True Qi Pill is less than thirty percent. Usually, a cauldron of True Qi Pills yields only two pills, which is quite rare.
Similar to how the higher the quality of the Qi Blood Pill, the more qi and blood it can enhance; the quality of a True Qi Pill also determines the amount of True Qi replenished after consumption.
A low-grade True Qi Pill can roughly restore fifty strands of True Qi, possibly a bit more or less, but generally around that range.
Therefore, even a Meridian Refining Realm Martial Artist who has made a breakthrough for some time should not consume an entire True Qi Pill directly, as it could potentially burst their meridians and cause life-threatening danger.