Question Methamphetamine quality increase after prolonged standing?

[Acab1312]

Hello, can someone help me.
What can it be that methamphetamine, 24 hours after vacuum filtration has no or bad effect. After several days the quality increases very strongly. Is it residual solvent that distorts the effect?

 

[loadingST]

How you meashure the quality increase and what did you did exactly, what solvents, what pressure etc

 

[Acab1312]

The quality was measured by 3 human testers. On the first day, it was reported that the quality was not very good. A few days later, the same material is said to be very good.
d-Freebase distilled, pH 5 set, acetone crash, vacuum-filtered after 24 hours in Buchner, recrystallization H2O-acetone. Vacuum filtration with Buchner purged with 99.9% acetone crystals. Air drying with fan 48hrs

 

[loadingST]

Your testers are bulshiting you, it can only form imine with the acetone while its still freebasse but it aint the case, smell like some hard bulshit