I don’t have a lot of castor to grind this year. I’m thinking of trying glycol, I have on hand, for just the little I have. I can definitely smell a sweet smell to it. Is it a mistake to try it or better to go with what I know works in the past. Was thinking of trying a different method just to know. I have plenty of the old lure on hand if it’s a problem batch. In Dirk Miller’s book he does use glycol and he was a fine beaver trapper. Just don’t know if my grade of glycol with the sweet smell is an issue.

Glycol will deteriorate over time. It will develop a glue like odor. I tend to stick with glyerine.

Mr.Kytrapper, Years ago I had a bad experience using glycol and beaver castor. I had some dried castor that I wanted to soak some to make grinding easier. I put the castor in a one-gallon ice cream bucket and covered it with glycol and let it soak for a couple of months. When I was ready to grind it, I popped the lid and noticed a quite different odor than what I was expecting. I ground that castor with the queer odor and put it up in a couple of quart jars for later use. When I went to use it, I noticed that the odor had dramatically changed. I could barely notice a faintness of castor, but it had a leathery and heavy odor of that of like shoe polish.....I never used glycol after that.

These when days I grind and put up beaver castor I use a blend I make of "fixed" beaver urine, glycerin and everclear. It smells like a beaver!

As long as the P Glycol is good it should be odorless. I had bought some in an old 5 gal tin can container partially used years ago. When I went to use it and to smell it I could tell it was bad. I use more Glycol then Glycerine in our work. Both have their uses just need to know you are using good material and for what purpose.

Three answers from the best, thank you men.