I've read somewhere that it's actually better to dilute.

You can also make your own gel:

1/3 cup honey (or 1/4 if you think it's too sweet)
1 tbsp jam (apricot is suggested) or maple syrup or maltodextrin
1/4 tsp salt

Mix well and pour in a flask. Add water and shake well (will make bubbles).

I have yet to try it myself but it should happen shortly. I'm sick of using individual portion packets, too much garbage...