Stepping 3 weeks
1) Put in 1 ml base + RY4 Double (TFA) + Acetyl Pyrazine (TFA) and steeping 4 days
2) Put in 1 ml base + RY4 asian (TFA) +Vanillin (TPA) and steeping 4 days
3) Put in 1 ml base Vanilla Bourbon (TPA / TFA) and let the six days to steeping alone.
just mix all mixtures on different days mentioned, insert them all together in a bottle and add the rest of your base (how much liquid you have arranged to create)
Caution ... The days in each mixture are different ... steeping first mixture ones that have more days and then the remaining ..
The finale steeped liquid should be 10 days or more ... and start to measured after mixing of all the blends .... good sake every day if you remember ...
Store in a dark place .