Teach Soap

Hi Everyone!
First, I just love this site! I have learned so much from everyone. I have really enjoyed being part of this Soaping Community! Thank you all!

My questions:

I want to swap FOs for EOs. Can I do this? I just want to do this for the hard to fine and expensive EOs?

I have two recipes. One calls for 10 ml = 2 tsp Peppermint EO, how much FO does this equal?
Can I substitute?

The other recipe calls for 1.25 ml = 1/4 tsp Vanilla EO. How much vanilla FO would I use?

Thyme EO = 1/2 tsp (2.5 ml) Can I use ground thyme?

Thank you All for your help,
einnoc

Is there a formula I can use to figure this out?

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"Soap is to the body what laughter is to the soul!"

You can swap EO for FO at about the same rate. It's harder the other way around, because some EO's are stronger than FO's. Peppermint can be swapped for an FO at the same rate. For Vanilla absolute you would most likely need more FO. Ground Thyme does not have the same properties as the EO. I would try it at the same rate, but you won't get the scent like you do with EO. I don't know of any formula because different essential oils are used at different % due to safety.

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Irena
Closed minds are like faulty parachutes; they refuse to open.