Gravity Of Maltodextrin

[Kai]

How much gravity would 400g of maltodextrin contribute to ten litres of water?

I have a lemonade fermenting with 400g maltodextrin, 800g dextrose and 1.2 litres of lemonade in a total volume of ten litres. Since it is a very slow fermenter, I need to be sure it has finished before I take it further, and if I know how much gravity the unfermented maltodextrin is contributing then it would help a bit in knowing fermentation has ceased. Does anyone know?

 

[sosman]

According to palmer it is 40 PPG

http://howtobrew.com/section2/chapter12-4-1.html

 

[Kai]

Thanks, sosman. I hope no-one pulls the google graphic out on me.

Working from that, I get a contribution of 33.4 points /100g /1L, or 13.36 points in my lemonade. If that's right, then it should nearly be finished fermenting. Woo!