I make a sink full of Milton with two tablets then put 28 bottles on the work top in the kitchen and pour approx 20 to 30 mm of Milton into each bottle, i then put the screw caps on and give each a good shake after 7 minutes i shake them all again and at 15 minutes they are done, i have never had a problem with spoiled wine.I had some no rinse in the cider kit i got but switched to Milton as the tablets are readily and cheaply available, so far no issues although the mrs was not impressed when i filed the bath with 70 bottles and kit with Milton haha