spoilt ingredient

Put the heat on, and let the water bubble,
Add in spices for the flavour,
Throw the meat in, make that double,
Complete the dish and hope you can savour;
Savour the chemistry that is all that it is,
Remember the innocence of the birds and the bees;
But hark, in comes confusion,
And all is for naught,
For in the wake of this intrusion,
All words become caught.