Some blends just take time, regardless of the process or tools utilized. Ultrasonic cleaners and magnetic stirrers are useful, but they aren't the holy grail of DIY. You just need to be patient

Make a bunch of fluid and use what taste good first. When you run out of that the other stuff should be ready. Just take the top off squeeze the air out then shake daily. You just have to start a cycle so you always have nicely blended juice.

I made this little attachment for my sawzall..... you can also make something similar for a jig saw...... my sawzall has 3100 strokes per minute....that's a LOT of hand shaking....turns the juice to white froth in a matter of 10 seconds.

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I shake each bottle for about 30 seconds....put them into my food dehydrator set on 140 degrees and heat them for 2 hours, shake them again and put them back for another 2 hours.

I take them out...and they're good to go. Some juices will still take a few days to a week for the full flavor to come out but this really helps speed things along for most of my juices.

I've heard milk frothers work great

I personally use this Crockpot Little Dipper. This thing is only $9.97 and takes up very little room. Plus you can use it for kitchen cooking too!

If you have a drill, this is what I do. Take a straw, cut vertical slits about an inch up starting from the bottom. About 10 little "flaps" is what I usually get. Put the other end in your drill, the cut end in your bottle, and speed stir that shit to your heart's desire. I usually stir for about 3-5 minutes after mixing, put it in my crockpot for about an hour on low, stir another 2 or 3 minutes, and just repeat that for like 6 hours. After the last stir, I usually see a noticeable color change and I let it breathe for about an hour and it's good.

I use this little sucker for mixing. Needs a different container to mix in. Grab a set of pyrex or borosilicate beakers and you're in business.

Small crockpot, or even a cup of hot water from the microwave will do the same for less.

One thing that is helpful is one of the battery powered frothing devices for coffee. Less than ten bucks and a AA battery will mix the hell out of your juice. (it aerates and adds oxygen/bubbles to your juice while stirring)

Both heat and mixing will help, but everything needs time. It just depends on how much time you want to spend.

I just let my custards sit for at least a week before I vape them. When they are fresh I let them sit without caps for a few hours or overnight.

I have no problem shaking a bottle for about 5 minutes straight.

I can think of no reason why I can maintain this action for that length of time. -.-

Try making one! Just grab a shitty old food container, buy a small $5 electric motor from radioshack and power supply, glue a magnet the the motor and secure it inside the food container. Probably $15 to make if all you need is a stirrer.

People overthink this. I pop the bottle in the microwave for 10-15 seconds, give it a good shake, and vape away. It's good to know what tastes great right away, and what tastes better with time.

Or with some planning, you can save the money from buying a stirrer and simply wait. I always have 2-3 30ml bottles steeping while I make my way through the current bottle.