got a coinjoin / mixing question:

if i mix in a 0.01 pool, i’ll get a bunch of 0.01 utxo’s out the other end of the mix(es)

then, any change from the mixing process is toxic, i understand that much

but, if (with my mixed coinage) i go to purchase something that’s 0.005 BTC, then i’d get 0.005 BTC change that would theoretically now be “toxic” (i.e. the vendor would know it’s my change after purchase has been made)

so, my question is, do you always have to re-mix any change from purchases made with already mixed utxo’s?