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Since I get asked this question a lot, here is a video that answers all your questions about glycerin. Also, I've attached a solubility list (PDF) below that will help you select whether glycerin is good, or not, for your essential oil or flavour compound.

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Is Glycerin a Good Substitute for Alcohol When Making an Extract?

Glycerin is often touted as a good substitute for alcohol when making an extract, whether herbal or with essential oils. But is this the truth or just something the Internet has propagated? Let's find out with a little chemistry education. Patreon: https://www.patreon.com/artofdrink 0:00 Introduction to Glycerin 1:32 Glycerin's Capabilities 10:35 Compound Solubility in Glycerin 13:59 Health & Safety of Glycerin & Propylene Glycol 15:41 Cost Savings 16:28 Conclusion Essential Oil and Flavour Suppliers https://artofdr.ink/suppliers Calculation Form for Soda Formulations https://artofdr.ink/calc-form **Getting Started Making Soda** If you are new to making soda, welcome, and you should check out the following videos because they will show you the basics of making soda and will help answer most of your questions. Using Essential Oils Safely https://youtu.be/9SZLCedj1JI How to Make a Soda Flavour https://youtu.be/DYm9BidnF4w How to Make a Flavour Extract https://youtu.be/EvkbCkg9bPs Simple Syrup for Soda https://youtu.be/v-ObB8T5ZrA How to Formulate a Flavour https://youtu.be/FSL6pVrV8Pw Art of Drink https://www.artofdrink.com Twitter: https://twitter.com/dsoneil Camera Gear Panasonic GH6 w/ 12-32mm F2.8 (primary) Olympus E-M1 MkII w/ 12-40mm F2.8 Olympus E-M5 MkIII w/ Leica 25mm F1.4 #glycerin #science #drinks

Comments

Fernando Plata

Darcy, great explanation. Thank you. What manual does the solubility list come from?

Darcy S. ONeil

Now that I've checked, the rotation didn't save. Boo

MOHD ABRAR

Dear i made cumin extract i used glycerin for extraction ..extract dilute with water how can i calculate ppm of this flavor

Darcy S. ONeil

Hello, sorry for the delay, this question is more complicated then it seems. The problem is that there is limited data on glycerin extracts of cumin. With alcohol, you can estimate a complete extraction of the oils, but even then, knowing the quantity of oil extracted is difficult, but with an essence, we know exactly. But, an extract can be assumed to be somewhere around 50% of an essential oil essence. Now, with glycerin the solubility of oils is going to be much less, so maybe 10%? Though I'm not sure. But it won't be stronger than an alcohol extract so you could probably use 4 to 5 times as much as other essences or extracts. But the best thing to do is get the flavour to a point where it tastes good to you and that will work without the math.

MOHD ABRAR

sir can i use isopropyl alcohol for extraction or what is different between ethyl alcohol which is safe for health

Darcy S. ONeil

I have a video planned about using isopropyl alcohol and it is safe and is a better solvent than ethanol, and I've used it before. Many years ago soda manufacturers request to use it because it does work better. The only issue is that some countries limit the amount of iso-propyl alcohol in beverages, but if you follow the standard instructions on how to make an Essence, the IPA concent is less around 600 to 800 ppm, so very low.

josh wells

Do you ever need to use heat to make an extract? The only reason I'm asking is I'm trying to make an Elderflower extract from fresh elderflower and all of the syrup recipes use boiling water. The extract I've made so far is quite green and non floral. Thanks in advance 😊

Darcy S. ONeil

For elderflower it may be that the floral aromas are extracted with a high proportion of water. Vanilla is like this, only using 35% or less abv. Try doing a small extraction with just water and sugar and see how it tastes.

James Norquay

Hi darcy can you double check the link please? I can't get it to open currently

Ujwal Trivedi

Hello, not seeing any PDF attached, where can I download it from?

Darcy S. ONeil

The solubility list, at one time, was publicly available, the owner has removed it, so I can no longer share it.