"Here are the standard biscuits ranked from worst to best, with their breaking time, and recommended dunking time:
Hob Nob, 15 seconds, 5 seconds
Malted Milk, 20 seconds, 6 seconds
Ginger Nut, 32 second, 3 seconds
Fig Roll, 38 seconds, 4 seconds
Chocolate Digestive, 41 seconds, 4 seconds
Digestive, 48 seconds, 5 seconds
Chocolate Hob No, 51 second, 9 seconds
Rich Tea, 58 seconds, 4 seconds
Custard Cream, 1 minute 6 seconds, 8 seconds
Jammie Dodger, 1 minute 8 seconds, 8 seconds
Shortbread, 1 minute 20 seconds, 11 seconds
Bourbon, 2 minutes 39 seconds, 7 seconds"
Taken from a"Scientific" investigation carried out a few years ago, Bobbi ;o)