Regular savings account offers interest 5-6 percent below even paper inflation. How is this advice on-topic, when OP is asking how to AVOID EXACTLY THIS??
The thing is that you can't protect your emergency funds against inflation. The point of emergency funds is that you have them readily available -- not to invest them.
If inflation eats your emergency fund then you increase the size of your emergency fund to compensate for it.
It's kinda like paying for IT security; with luck it'll just be a cost that you never see any benefit from. If not, you'll be glad you have them.