glycol amount

[augusto]

Hi I buy 100 grams of propylene glycol from the pharmacy it seems to me to be pure I think, because it is a galenic preparation you have to mix with water? in what percentage? you think? and the quantity to be applied to tobacco? 1% would be ok?
Thanks

 

[deluxestogie]

For what purpose are you adding propylene glycol to your tobacco?

Bob

 

[ChinaVoodoo]

1% is not ok.

You need to think about the total amount that you plan to have in the tobacco, and work from there. The reason for mixing it with water is because it makes it easy to spread evenly. If you could spread pure glycol evenly over you tobacco, it would be simplest to just use it straight.

But since you can't, let's look at some math:

To determine how much you need
Tobacco amount x desired blend percentage

To determine how much to use
How much you need ÷ spray percentage

Example 1: 10%glycol/water w/w
You have 100g tobacco.
Target = 2% (2g glycol + 100g tobacco)
Amount needed: 100g x 0.02 = 2g
Amount to use: 2g ÷ 0.1 = 20g
(this one looks to me like it would be fairly damp and need some time to dry)

Example 2: 20% glycol/water w/w
Tobacco amount 500g
Target 1% glycol, (1g glycol, 100g tobacco)
Amount needed: 500g x 0.01 = 5g
Amount to use: 5g ÷ 0.2 = 25g
(this one will be easy to spray evenly, isn't too wet, and is ready to use)

Example 3: 15% glycol/water w/w
Tobacco amount 28g
Target 2.5% glycol, (2.5g glycol, 100g tobacco)
Amount needed: 28g x 0.025 = 0.7g
Amount to use: 0.7g ÷ 0.15 = 4.6g
(this one will also need some time to dry out)

Conclusion
So feel free to change the amount desired, and the spray percentage. If your spray is too dilute, you will have to use so much that your tobacco will be excessively wet with water. If your spray is too concentrated, it will be difficult to spray and mix with the tobacco.

 

[ChinaVoodoo]

Another easier way to do this is to not care at all what the percentage of your spray is.

Let me explain.

Let's say it's for cigarettes and you want 1% glycol in your 200g of tobacco.

200g x 0.01 = 2g

You need a pretty good scale to measure this, but weigh out 2g glycol into your spray bottle, mix in any amount of water, then use all of the spray. Regardless of how concentrated your spray is, you know you have just mixed 2g of glycol into your 200g of tobacco.

 

[ChinaVoodoo]

You might have difficulty weighing such small amounts, but a gram of glycol is close enough to a mL in volume, so in the previous example, i would use a bit less than half a tsp.

 

[augusto]

Yes, I thought so too (which you said) so there is no need to measure water! !!! this is easier i read somewhere that 1% do glycolic and ok (in EU governance its oscillates between 2 and 3% max glycolic it would help the uniformity of the homogeneous combustion of the cigarette, i hope i saw tobacco in normal cigarette it is stable not particularly humid

 

[ChinaVoodoo]

Yes, I thought so too (which you said) so there is no need to measure water! !!! this is easier i read somewhere that 1% do glycolic and ok (in EU governance its oscillates between 2 and 3% max glycolic it would help the uniformity of the homogeneous combustion of the cigarette, i hope i saw tobacco in normal cigarette it is stable not particularly humid

In a previous discussion we concluded that burn rate in mass produced cigarettes is likely regulated by what's called expanded tobacco.

 

[augusto]

Yes I think expanded tobacco plays a role in this sense but I think it's this is due to various substances such as sorbitol glycol etccc pg is a flammable substance

 

[ChinaVoodoo]

Doesn't hurt to try.

 

[burge]

Why are you adding it? I am assuming its to help with combustion. I don't add anything to mine. One thing that helps with burning is to let is dry out a bit

 

[augusto]

Yes of course, but the piece falls during the smoke, it is not regular if the tobacco is dry or too dry to facilitate filling, the ash falls with the whole piece !!!! this is not tolerable and very annoying. if the tobacco is a little damp, it is difficult to vacuum, or in any case not satisfactory. surely the addition of various additives make the draft perfect. (in addition to expanded and reconstituted tobacco) can I add the GP directly to the casino? ?? instead of in water (casing; rum or vodka invert licorice sugar etcc)) ???????

 

[burge]

What were you smoking before you got into leaf? I see your new to smoking there are a couple of things you can do 1 is putting less tobacco in a tube what shredder are you using? A good long ash means its good tobacco. When tobacco is inserted into tube it should be dry. Now dry in the sense that when you touch the tobacco it should spring back to its regular shape when its in a ball. They type of shred facilitates burning. Ie a long strand shred and thicker cut tobacco will burn slower than smaller pieces. I have had real pipe tobacco in a tube it takes forever to burn. but it lasts.

 

[augusto]

Hello wishes Happy New Year
these tricks I made them !!! I think additives make the difference as soon as I try the gp I let you know

 

[burge]

let us know I am wanting additive free tobacco.

 

[augusto]

Yes of course I too would like that! !! But I would like to try technically better cigarette !! I did a test by adding half a gram of pg in a bit of vodka and sprinkled in 45 g of tobacco the tobacco remains wet even after 1 day, I made cigarettes and it seems to be still wet even if it is not so wet !!! It is difficult to aspire
I ask; could I add the PG directly without adding water or other liquids?

 

[deluxestogie]

PG is hygroscopic, and keeps tobacco forever soggy. It's difficult to bake away, and difficult to rinse away.

Bob

 

[augusto]

ok I waited 2 days for the tobacco to dry (45 g tobacco 0.5 pg in 50 ml vodka) I filled the cigarette and the smoke was regular and the lit piece did not fall on the humidity equal (more or less) to the marlboro cigarette (which I opened) therefore, there is no need for a humidity dictated by the.pg higher than 1% of the total weight of the tobacco

 

[burge]

I am in a fairly dry climate so that could have something to do with it for me. What shredder are you using?

 

[augusto]

i'm using pasta machine or coffee grinder