On here, RyanAir says:
Passengers who choose not to purchase ”Priority & 2 Cabin Bags” and arrive at the gate with 2 bags, your second larger bag (10kg weight Dimensions: 55cm x 40cm x 20cm) will be taken off you, tagged and placed in the aircraft hold free of charge. Please ensure all valuables are removed. You will collect this bag at the baggage belt at your destination airport.
Since this means I will not take my larger hand luggage on board, can I transport fluids in it, like in regular checked luggage?