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Dog Shampoo with Lemon Juice

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artisianswindow

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I have done some research on making dog shampoo using CP method, it indicates to add lemon juice, I have read that the Lemon Juice can neutralize the Lye. The first batch I did I added the LJ at the end of saponification, but it appears to have come out of the soap box very wet, can I reduce the water to Lye ratio by the amount of Lemon Juice I am adding, to help it to be a more dry bar of soap after 24 hours?
 

DeeAnna

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I take it you're adding lemon juice in addition to the normal amount of water you normally use?

If so, yes, you need to reduce the water based liquid so the TOTAL amount of water-based liquid is the correct amount. This is the way to handle adding any water-based liquid, not just lemon juice.

For example, if I use beer to make soap, the total amount of plain water + beer should equal the total amount of water called for by the recipe.​

The citric acid in the lemon juice will react with NaOH, so you need to also add extra NaOH to compensate for this neutralization reaction. If you don't, you will be increasing the superfat of the soap. More: Citric acid, Citrus juice | Soapy Stuff

There is no benefit to adding lemon juice or other acid at trace or at the end of the hot process cook versus at the beginning of soap making. The citric acid in the juice will consume some of the NaOH regardless of when the acid is added to the soap. Adding it sooner or adding it later -- it makes no difference. More: Acids in soap | Soapy Stuff

The usual reasoning behind adding acid to soap that's intended to wash hair is supposedly adding acid up front will eliminate the need to do an acid rinse after washing the hair. It doesn't work that way. The acid is neutralized in the soap, so it doesn't function as an acid anymore.
 

artisianswindow

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thank you Very Much for your reply, I am making soap for dog shampoo and was researching that lemon juice will reduce PH, I did a test batch but it was wet, I felt I definitely needed to reduce water, but interesting I was not aware that I needed to increase NaOH to compensate for the Lemon Juice. I will read your links to figure out my requirements Thank You again
 
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