Why you MUST use weight and NOT volume or drops in perfumery

[@ellusilva]

Thank you Sam! Many people don't understand the exact reasons why is so important to use weight in Perfumery. I loved your explanation using density and number of molecules.

[@sammacer]

Thanks :)

[@dhruvmini01]

Hey man, I just found your channel! I have limited time to spend to learn about starting to compose. Glad you have a list of super helpful videos to help me start out!

[@sammacer]

Glad you could put it to good use :)

[@IAmSpectreOne]

I am looking into perfumery and found this video very interesting. The volume graph for the water/ethanol mixture was a slap in the face to my college days. The sizes of the molecules themselves and the distances that they hold eachother apart allows for the smaller molecules to fit between them. (H20 is 28nm and Ethanol is 44nm in diameter) Although I am more familiar with crystal lattices and molecular distributions in solids, there should be a great deal of similarities in liquids. Best way to visualize it is different size balls in a ball pit ranging from large to small. Over time they would find themselves in the tightest distribution based on the forces involved (namely gravity in the example case). For liquids, I imagine that it is vastly more dependent on temperature (25C in the diagram) in regards to where they fall into equilibrium. I know one of the biggest concerns for perfumers is evaporation speed and "longevity" of their fragrance. Do you know where I could find a decent graph that compares the evaporation speeds of different percentages of water to ethanol? I understand there is a range of where most fragrances dilute the overall alcohol content and was wondering if that was based more on overall viscosity, toxicity, evaporation speed, or something else...

[@rickscars7395]

🤯 awesome thanks Sam.

[@Tmanaz480]

I learned this the hard way years ago when I ventured into flavoring. I naively bought several expensive pipettes and tried to work with volume. It was a huge headache.

[@devavilluri]

Superb explanation - keep it up Sam

[@bonjourbrasserie4387]

Awesome! The video i was looking for

[@Joxa514]

thanks for sharing! so how do i go about using this then? if im making a 10ml EDT with 10%oil/80%alch/10%water, would i just have to get all units adding up to 10g on the scale instead of measuring in ml? 1g oil/ 8g alch / 1g water and completely ignore the ml im adding measured by pipette?

[@sammacer]

Yes

[@fevziceylan7160]

Thanks Sam.

[@kurush61]

Hi Sam, just discovered your channel - it’s great! I have a question - how do I work with thicker / nearly solid materials? For example Galaxolide. I know I need to heat it up in order to thin it out and use it, but how exactly do I safely do this? Thanks!!

[@sammacer]

Hi! What I usually do is leave them on top of the boiler until they become warm enough to pipette, and then make a 10% dilution. If that doesn't work I try using the oven on a very low setting (though be careful as this can be dangerous - do not do this with perfumer's alcohol).

[@aramourartisanperfumery6437]

Great explanation!

[@sammacer]

Thank you

[@jasperdrak]

I can be a bit daft, but I'm glad I got my head around the fact that weight is the best measurement for perfume creation. I'm still gathering my materials etc., but I'm already a bit confused about how to figure out how much alcohol to add to the concentrate after I have already diluted certain materials in alcohol in order to make 20% EDP, for example. Can you help?

[@sammacer]

Could you give an example of the formula with the dilutions you used?

[@jasperdrak]

@@sammacer Thank you for replying! I found a spreadsheet 'Formula Calculator' on the Pell Wall site that I think helps with this. I'm sure I'll fiddle about with it, get everything wrong, and then hopefully, finally get there.

[@sammacer]

@@jasperdrak Yes that sounds like a good idea, I'm sure you'll be able to work it out

[@srgttamtam]

Hey bud, this may be an utterly stupid question, but how do you get to the exact measurements, if a droplet is the smallest amount I can add at a time? Is there a way to "split" them? 😂

[@sammacer]

No - if you can't measure it then your formula is using too small quantities. You need to scale it up

[@srgttamtam]

@@sammacer thx bud. I'm learning so much from your videos, keep up the amazing work 🙏🏻

[@kelechi.E]

Sam Macer

[@RosalieSoriba]

❤

[@sevenseen]

and he can write code.......... i wanna pick this brain