If you are wanting to collect the labels, you need to get them new from the brewery. There is no way to get them off the bottle in good condition. There are labels up on eBay.
I soak mine, as well. Anything left, I scrub off with an SOS pad. I've taken many, many labels off jars this way and it's never been a problem. I paint on them. So, I clean them with alcohol first.
I don't know why they would be any different from any other bottle label. I fill bottles and jars with water. lay them on their sides with the label down in a sink full of water, and soak for as long as needed. Sometimes the glue is stubborn so I use a bit of Goo Gone on the last of it.
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