Edit! Sorry, didn't read home canned. I would think it's fine so long as you can properly.. which I'm sure you know how to do since you're asking
yes, pressure canned would be needed like olive oil said. if interested and for others, my post was about concentrate... which I suppose you could do yourself. Concentrate works great for me. Good luck with it all!
I use canned concentrate. Refrigerate half my water amount as concentrate, dissolve lye in the half water amount of water. I pour lye water into melted oils, I stick blend about three short pulses, and dump the GM concentrate. I keep an ice bath on hand. I sb, and it turns a little yellow. If I smell the ammonia stink, I put the soap bowl into an ice bath to calm it down.
I freeze GM soaps a day, refrigerate another 8-12 hours. They are creamy off white light beige, very light. I use a little td and they're nice and white.
Best thing. Don't have to worry about dissolving lye in frozen GM and accidentally leaving behind lye that didn't dissolve, and no straining needed. Being canned concentrate, you technically mix half GM with half water when drinking to make it regular strength GM...so half GM concentrate plus half water in soap equals full GM soap! It works great for me.