Question to Gerard Tessier

In your video about your flesching machine do you talk about a Tanning formula that uses Formic acid, aluminium Sulfate, formol and Salt.
Can you chare with us this formula?
Ferreira.

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Here it is.

Hi,

In ten gallons of water I add 6 pounds of salt or more, two onces of formic acid, Half a pound of aluminium sulfate (alum) diluted in a few cups of boilling water. If you wish to preserve it for a few months or more add two onces of formadehyde.

Gerry

Formaldehyde

I thought formaldehyde was a carcinogen?

Thank you very much

Thank`s
For the kwiik and pronpt response.
Dont you neutralise The skins in the end ?
Ferreira