I have been looking at a couple of kosher grass-fed websites and one made the point of mentioning that the beef tallow is not rendered (Non-rendered Kosher Beef Tallow
What is the difference between this and regular rendered beef tallow?
Not rendered means it is fresh off the cow in its natural state. Rendered means it has been cooked down and recooled into a butterlike state as lard is. Most butchers will have a bin of unrendered fat chunks.
It sounds like they are just talking about a bag of fat. I get mine for $1.99/lb at the farmers market and render it myself (easy enough to do). It's organic, grass fed but not kosher certified. 15 pounds sounds like a lot of fat to have to buy at one time.
Judging by the picture and by the fact that the "tallow" comes in a bag I bet they're selling beef fat that you render yourself to make tallow and not the finished end-product. I think tallow would come in a can or pail, not a bag. Think coconut oil - if you bought 15 pounds of it would you expect it to come in a bag? Also, $3 a pound is too cheap for kosher grass-fed tallow, which is more of a niche product that non-kosher grass-fed tallow. I get non-kosher grass-fed beef fat for $2 a pound and I get a yield of less than a pound of tallow from a pound of fat. So, if it really were tallow they'd be charging a bunch more.
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