Hi Nafe,
to fry, BBQ or do anything else with a Weisswurst but poach is considered as "sausage malestation" by the Bavarians and punished severly
A good Bratwurst
Pork lean 70% - Pork fat 25% - Soi 5%
add 5% of the total in ice while cuttering
1.8% of total salt - 0.2% phosphate for bite - 0.1% MSG (optional)
white pepper - nutmeg - dried ginger - coreander - to taste
You will not get the perfect result without the phosphate - it is not harmful and only a small amount but gives the sausage the right "bite" -
By the way, there is more phosphate in your salad than in your Bratwurst and you'll be eating more MSG when using a few dashes of Worchester Sauce or using a stock cube (they call it "yeast extract")
hope the above helps
John