How many drops equal a ml?

[bmarley5780]

I received my DIY stuff but did not get a dropper. I do have syringes though.

Can the mixes be done with a syringe using the starting standard starting ratio.?

 

[bmarley5780]

Sorry, Just read this :

Cherrycakes - I would say try like ten drops = 1ml
For a 10 ml batch you wanna shoot for 10% ish or a little more of flavoring or 1ml
Try ten drops for now. Tomorrow go to your local needle exchange and get a 3ml syringe for free - just tell 'em you NEEEED it.

Does this pretty much sum it up?

 

[glassmanoak]

The dropper I use has 38 drops of PG/Flavoring per ml so 10 drops per ml would be WAAAAY off for me. Actually draw 1 ml of fluid into your syringe and count the drops as you drop that fluid out.

You really need several sized syringer and several sided needles and you need to know how many drops/ml for each sized needle.
I suggest 14 guage needles (for VG), 10 guage needles as well as 1ml, 3ml, 5ml, 10ml and 20ml syringes. They are easy to clean and reuse.

 

[Hoosier]

A reoccurring question and one that does not have an answer that most questioners find acceptable.

I have droppers that I have measured to be 18 drops per ml.
I have droppers that I have measured to be 56 drops per ml.
I have droppers that measure nearly everything inbetween.
I have certain bottles of certain flavors that I know measure between 36 to 38 drops per ml, but I know that if I use a different liquid in those same bottles with the same drop tops that they will no longer have the same number of drops/ml. I've measured this by taking a graduated cylinder and counting the drops to reach 3ml then dividing the count by 3. This gives me a fairly good rough average.

Since making all those measurements I now use 1ml syringes for flavorings that have markings every 0.02ml (equivalent to 50 drops per ml in precision without the sometimes tedious task of counting each drop.) I will still use drops for things that only take a few drops per 30ml bottle though.

Now if you're dripping Humco VG, 10 drops per ml might be accurate....but, then again, it may be way off.

See, I told you the answer could be unsatisfying...

 

[unloaded]

Hey Hoosier, I ran across a site with glass pipettes that were marked in 0.01ml increments. I was thinking these might be useful. Have you ever used any of these before?

 

[Hoosier]

I can only use good pipettes standing up and I hate to mix standing up. I think they would be great, but not for me.

 

[tenshi]

As a rule of thumb, in the lab with low viscosity liquids, 20 drops = 1 mL... But as you can see by everyone's response, a lot of variables. Best to just measure how much your technique and the dropper you'll be using with the liquid you'll be using and measure how many drops per mL.

 

[cricque]

If you are considering DIY, you might wan to invest in all glass bottles, get all the same dripper inlays or so. That way you should always have around the same. THe only difference can be in the thickness of the flavor still. There is a difference in the thickness of PG and alcohol. (thats is if you want to be 100% accurate with your flavors). If you do not mind the perhaps small differerence you can just use the glass bottles with the same droppers, that way you have a consistent thing

 

[bmarley5780]

If you are considering DIY, you might wan to invest in all glass bottles, get all the same dripper inlays or so. That way you should always have around the same. THe only difference can be in the thickness of the flavor still. There is a difference in the thickness of PG and alcohol. (thats is if you want to be 100% accurate with your flavors). If you do not mind the perhaps small differerence you can just use the glass bottles with the same droppers, that way you have a consistent thing

Any ideas on where a kit can be found?

 

[cricque]

a kit ? Since you are from the US, i have no clue really. I just searched with google on glass bottles, dripper inlays etc

You can also look at "home made" candle/fragrances/salt/soap suppliers/wholesal. They usually sell bottles also, needles you can pick up just about everywhere. But I think (do not shoot me if I am wrong) that wizardlabs and ecigexpress sell glass bottles, they should all have the same dripper or so

 

[dsy5]

You say you've got syringes, simply drip into the syringe and count the drops required to get to 1ml...

 

[Kemosabe]

a kit ? Since you are from the US, i have no clue really. I just searched with google on glass bottles, dripper inlays etc

You can also look at "home made" candle/fragrances/salt/soap suppliers/wholesal. They usually sell bottles also, needles you can pick up just about everywhere. But I think (do not shoot me if I am wrong) that wizardlabs and ecigexpress sell glass bottles, they should all have the same dripper or so

USPlastics has good prices on bottles, both plastic and glass.

on another note, i have noticed that 1ml typically = 1 gram. so if youve got a scale (they can be had for cheap), you can measure that way too. put a carto condom on the scale, zero it out, then slowly drip. a scale that measures to the hundreth of a gram (0.00) is the one you want.
the scale will also greatly help with filling cartos if you are a carto user. first, measure the carto when its blank without the mouth piece or drip tip. i write the weight on a tiny piece of paper then tape it to the carto. then fill it with 1 gram of eliquid (this is for standard sized cartos). you can quckliy and easily always tell how much fluid is left just by weighing it. it makes refilling cartos much much easier and much less messy. FYI boge cartos typically weigh in at 4.5g, smok cartos are usually 4g and kangers are about 4.25g. so if youve got cartos already filled when you get your scale, you can use those measurements as a ballpark.

 

[Kurt]

You say you've got syringes, simply drip into the syringe and count the drops required to get to 1ml...

This depends on the viscosity of the liquid, as well as the hole size the drop is coming out of. Same liquid in a different bottle can give a different number of drops. Same bottle, different liquid, can also give a different number of drops. Drops are fine for tweaking the amount of flavor a little, but not good at all for DIY nicotine, especially high-nic liquid, like 100 mg/mL. Syringes are really the only way to go.

 

[Iffy]

Not to be a curmudgeon or an ogre, but why not just do a 1ml drip test? Once ya know the drops per ml using that particular bottle/tip, annotate the bottle with that number.

Why is it that some go out of their way to over complicate a very simple process?

Personally, I only use drops with the super concentrate flavs (in my recipes, usually 1.1 drops per ml). Otherwise, I use an appropriate sized syringe for volume recipes.

This oft posted question reminds me of a priceless, relative and sardonic theorem:

Measure thrice with a micrometer
Mark once with a crayon
Cut once with an axe


Good luck! <Please note that Hoosier and hero begin with an 'H'!)

 

[tomjw3]

I have struggled with the accuracy over convince problem for years. (I hate to stand up as well)
What works for me is a cumbersome, but repeatable process.
When I get a new flavor I pick out one of my many 15 Ml. empty, clean glass bottles with a dropper cap. I fill a graduated cylinder to the 3 Ml. mark using the dropper cap from the bottle, divide by 3 (like Hooser suggested). make sure the dropper is filled with the flavor when you store it. Make a label for the bottle with this number and store the bottle in a cool dark place. I add this number to Dan's calculator. I have written a formula so that when I make a recipe the calculator uses this number to compute the number of drops for that flavor.
see how easy that is?
The drawbacks to this system are evaporation and formula changes form the supplier.
The end result is that all my juice tastes the same from batch to batch. That is all I want.

 

[Koman]

You say you've got syringes, simply drip into the syringe and count the drops required to get to 1ml...

Yeah, that sounds like a plan!

 

[jazon1]

best way i found if you want to be sure how many drops in a ml with your current DIY flavor bottles is to just to pop the back off a syringe off and drip down the tube and count drops til it reads 1ml in the syringe,if you have a small graduated cylinder its a bit easier but a syringe works fine in a pinch just be sure to block the tip of it so it does not leak out. most my bottles are 20-25 drops per ml.

 

[rdix33]

best way i found if you want to be sure how many drops in a ml with your current DIY flavor bottles is to just to pop the back off a syringe off and drip down the tube and count drops til it reads 1ml in the syringe,if you have a small graduated cylinder its a bit easier but a syringe works fine in a pinch just be sure to block the tip of it so it does not leak out. most my bottles are 20-25 drops per ml.

OK I struggle with this a bit as well. One question about your method, what about that small amount that is left in the syringe after releasing the contents? Hope I'm making sense. I've tried to measure that amount, and best i can get is that in a 1ml syringe, it measures about .05ml if I remember right.

 

[Kurt]

OK I struggle with this a bit as well. One question about your method, what about that small amount that is left in the syringe after releasing the contents? Hope I'm making sense. I've tried to measure that amount, and best i can get is that in a 1ml syringe, it measures about .05ml if I remember right.

That amount in the needle is always there. Syringes are actually a difference measurement. If there is no air bubble in the liquid you are drawing up, and you pull up to the 1.00 mL line, you will deliver 1.00 mL, and the amount in the needle will still be there. Of course it might pay to flush the syringe with some water or vodka between juices if you don't want a tiny bit of some juice #1 to get into juice #2, especially if the last thing you syringed was the flavoring. I do the flavors first, then follow with VG, then VG-nic, then the water I am adding. By then, the last thing in the needle is pretty much all water.