It is important to know the flash point of essential oils if you are going to use them in making soaps. Soap saponifies at high temperatures up to 190 degrees Farenheit. It is therefore important to use essential oils with higher flash points or to blend low temperature flash point eo's with eo's that have a higher flashpoint to make them more stable in soap. Here is a listing of common essential oils used in making soaps and there flash points:

Essential Oils Flashpoint F / Flashpoint C

Aniseed - 194F / 90C

Basil - 176F / 80C

Bay Leaf Oil - 140F / 60C

Black Pepper - 129 F / 54 C

Bergamot - 136F / 58C

Cajeput - 126F / 52C

Cedarwood(atlas) - >212F / >100C

Camomile (Roman - 135F / 57C

Camomile(German) - 140 F / 60 C

Cinnamon Leaf - 194F / 90 C

Citronella - 135F / 57C

Clove Bud - >212 / >100C

Clary Sage - 174F / 79 C

Eucalyptus - 117F / 47C

Geranium - 176F / 80 C

Geranium Rose - Flash F

Ginger - 135F / 57C

Grapefruit - 109F / 43C

Lavender (augustofolio) 162F / 72C

Lavender 40/42 160F / 71C

Lemongrass 169F / 76C

Palmorosa 199F / 93C

Patchoul >212F / >100C

Peppermint 151F / 51C

Petitgrain 151F / 66C

Rosemary 105F / 40C

Spearmint 151F / 66C

Tangerine 124F / 51C

Tea Tree 135-142F/ 57-61C

Vetiver >212F / >100

Ylang Ylang 189F / 88C