Don't bother going to the link . It's just another blantant for profit scheme to separate you from your money trying to cash in on a simple procedure that you can do cheaply with commonly available items.
I've not bought anything from that site except the book for a friend a while ago. I get my maple syrup from Whole Foods and lemons from my aunt in California and use a mason jar for my lemonade. I don't have the mney to throw away! LOL