The argument is that when cooking peas from a can the liquid should be thrown away for the same reasons* beans' first couple of waters are discarded. Is that true?
The can says(translated):
Net weight: 400g
Drained weight: 280g
Contains: peas, water, salt.
Sterilized. Ready for direct consumption.
* - some people(including me) believe that not discarding soaking or first boiling water of beans causes farting and stomach ache. Whether this is true is irrelevant here: I am asking about peas.