Unfortunately, Kojel and other truly veggie jels do not behave the same way as Emes, which indeed, was NOT vegetarian (they have gone out of business, due to the scandal, I believe). So, use the directions on the box for the brand you have, not the directions in your recipe that calls for EMES. Read about Emes here: http://www.vegparadise.com and
http://www.vegparadise.com

Here's some info about using kosher jels:
http://www.bryannaclarkgrogan.com