Pump System to mix Juices? Please help.

[Ponchik]

Hi. Does anybody use, or work in a chemical lab and you know, a good but not very expensive pump system to mix your DIY juices? I came to the point when I have to make juices for relatives, friends, coworkers, and their relatives and friends. About 5-15 bottles every day of different juices with different ratios. Because I try to help people I charge only the cost of the material but spending 2-4 hours every day just to mix juices feels kinda ridiculous.

I appreciate any ideas.

 

[Ponchik]

For admins. Please don't move the threat from this section I'm very new on the forum.

 

[twgbonehead]

Not sure what you're using at the moment..... Here's a few suggestions:

1. Make a big "cheat-sheet" of your recipes with the actual amounts specified explicitly (rather than percentages) and everything listed in the order you will mix them (see #4 below).
2. Get a scale, and mix by weight, not volume. This one is very nice:
https://www.fasttech.com/p/1075703
This one is also good (only goes down to 0.1g, but that's actually plenty of resolution for mixing):
https://www.fasttech.com/p/1095102

3. Have lots of syringes, either without needles or with very wide-bore needles so you aren't constantly washing them out.
4. Do the mixing in "batch" mode. Do a pass with all the VG, then with all the PG, then with the nic base, then do the flavors individually.

If you're organized and have the right equipment, it shouldn't take you 4 hours to do 15 bottles!!!

 

[twgbonehead]

For admins. Please don't move the threat from this section I'm very new on the forum.

Ponchic,

Don't worry. You can ask anything on "New Members" (as long as it's acceptable on ECF). And get answers, too.

Oh, by the way, Welcome to ECF!

 

[Ponchik]

Not sure what you're using at the moment..... Here's a few suggestions:

1. Make a big "cheat-sheet" of your recipes with the actual amounts specified explicitly (rather than percentages) and everything listed in the order you will mix them (see #4 below).
2. Get a scale, and mix by weight, not volume. This one is very nice:
[
This one is also good (only goes down to 0.1g, but that's actually plenty of resolution for mixing):
[

3. Have lots of syringes, either without needles or with very wide-bore needles so you aren't constantly washing them out.
4. Do the mixing in "batch" mode. Do a pass with all the VG, then with all the PG, then with the nic base, then do the flavors individually.

If you're organized and have the right equipment, it shouldn't take you 4 hours to do 15 bottles!!!

You gave me a great idea adding mixtures by weight, and I already have a digital scale.
So, is there a program which can calculate percentages by weight or I have to make a chart of volume into weight of a particular substance?

 

[twgbonehead]

By the way, perhaps a better idea than a "cheat sheet" would be to write each recipe down on a large index card.

When you start, take out the index cards with the recipes you're making. Then put the appropriate bottle or bottles on each card. This way you can "walk down the row" with each ingredient, and not get confused (of course you would transfer them back and forth onto the scale if you're using the weight method).

By the way, these digital scales all have a "tare" function (I would have called it a "zero"). So, if you're going to add, say, 10 grams of PG, you put the bottle on the scale (even if it already has other ingredients in it), hit the Tare button to zero it out, and then just add the PG until it shows 10g. You don't have to remember the weight of the bottle or of the other ingredients you've already added. When converting recipes I just assume that 1ml is 1g except for glycerine-based liquids. For glycerine you should multiply by 1.25 (i.e. 10ml is 12.5g). The others are all pretty close to 1g/ml.

 

[Ponchik]

By the way, perhaps a better idea than a "cheat sheet" would be to write each recipe down on a large index card.

When you start, take out the index cards with the recipes you're making. Then put the appropriate bottle or bottles on each card. This way you can "walk down the row" with each ingredient, and not get confused (of course you would transfer them back and forth onto the scale if you're using the weight method).

By the way, these digital scales all have a "tare" function (I would have called it a "zero"). So, if you're going to add, say, 10 grams of PG, you put the bottle on the scale (even if it already has other ingredients in it), hit the Tare button to zero it out, and then just add the PG until it shows 10g. You don't have to remember the weight of the bottle or of the other ingredients you've already added. When converting recipes I just assume that 1ml is 1g except for glycerine-based liquids. For glycerine you should multiply by 1.25 (i.e. 10ml is 12.5g). The others are all pretty close to 1g/ml.

I can use "eJuice Me Up" no problem with out using cheat sheets. I always open multiple windows of the program for each juice I'm going to make.
If the volume to weight ratios is what you say I'm good to go right about now.

Thanks a lot for your help.

 

[twgbonehead]

I can use "eJuice Me Up" no problem with out using cheat sheets. I always open multiple windows of the program for each juice I'm going to make.
If the volume to weight ratios is what you say I'm good to go right about now.

Thanks a lot for your help.

And now you have your 5 posts! In about 45 minutes you'll be able to post most other places in the forum (server updates at about 20 mins past the hour).

If you're in doubt about the conversion between volume and weight, just use your scale to measure out a specific amount of the liquid in question.
VG is actually closer to 1.26, PG should be about 1.03 ethanol is about 0.79 (which is important if you're using alcohol-based flavorings, which I don't)

 

[Ponchik]

And now you have your 5 posts! In about 45 minutes you'll be able to post most other places in the forum (server updates at about 20 mins past the hour).

If you're in doubt about the conversion between volume and weight, just use your scale to measure out a specific amount of the liquid in question.
VG is actually closer to 1.26, PG should be about 1.03 ethanol is about 0.79 (which is important if you're using alcohol-based flavorings, which I don't)

I will definitely verify volume to weight ratios. Pretty simple procedure by zeroing a syringe then weighting it with a substance.
Thanks a lot again.
Now I have 6 posts!

 

[p7willm]

First, have only a few flavors and tell the people you mix for that no, you will not mix up flavor a for them with 9% of chocolate in place of the 10% in all the others. If they want a personal chef then they have to pay for it.

Now that you have only a few flavors mix up just the flavors, no added PG/VG/nic, in larger quantities. When someone wants some juice they get to say what flavor, nic level, and PG/VG ratio they want and all you have to measure is 4 things. To make it even easier mix the PG/VG together before hand and the only thing you will have to adjust is the nic.

You can also lie to them about the PG/VG ratio being unique for them to make them feel better cause most people can not tell a difference of 10-20 %.

 

[Ponchik]

First, have only a few flavors and tell the people you mix for that no, you will not mix up flavor a for them with 9% of chocolate in place of the 10% in all the others. If they want a personal chef then they have to pay for it.

Now that you have only a few flavors mix up just the flavors, no added PG/VG/nic, in larger quantities. When someone wants some juice they get to say what flavor, nic level, and PG/VG ratio they want and all you have to measure is 4 things. To make it even easier mix the PG/VG together before hand and the only thing you will have to adjust is the nic.

You can also lie to them about the PG/VG ratio being unique for them to make them feel better cause most people can not tell a difference of 10-20 %.

I appreciate your advice. Still there is no reason to lie because its not a business. I can say any or all of them to go find help somewhere else. For most of them I also order hardware and parts, show them how to build coils, explain what changes they would get with different ratios of PG/VG/Nicotine. I placed myself in a situation I'm in now but if I would have had a machine in which I punch the numbers and it pumps right amounts of each substance into a bottle eventually more people could get my juice.
Of course, I don't play the game of fractional percentages. Once I asked for more flavor next time I add 5% more.

 

[brickfollett]

Yeah I use ejuice me up too. I never go beyond 9% flavoring myself, too much pg dries my mouth out

 

[dice57]

personally I mix batches of 300-400 ml at a time, and if was supplying friends and family would just offer what I had in stock, though if needed to, could just do the basic recipes then tweak the nic if needed.

I use glass flasks, stir with glass rods and mix Bain Marie

Mixing to order, would at least charge double the cost of supplies. Even at that price one is saving dramatically at what can be obtained elsewhere. And then you'd at least be vaping juice free

Vape long and Prosper.!!!