diff --git a/Usage.md b/Usage.md
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--- a/Usage.md
+++ b/Usage.md
@@ -94,4 +94,16 @@ After drinking it takes a while until the alcohol is completely gone. During tha
 
 * When logging off extremely drunk, it may happen that, if the player logs back in after a while, he may find himself at an completely unknown Place in the middle of nowhere having no idea how he got there.
 * But if he loggs back in after some hours or next morning, he will find himself at /home, again without any memories.
-* Also if the Alcohol was not of best quality, the player may face some bad type of hangover (slowness and hunger).
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+* Also if the Alcohol was not of best quality, the player may face some bad type of hangover (slowness and hunger).
+
+### Brew Sealing - for shop plugins
+
+You can just give your created Brews to other Players and they might even put them back into a Barrel to keep ageing them.
+But most Shop-Plugins require sold items to be exactly equal and this is where sealing comes in. Imagine it like putting a seal on the bottle.
+
+* To sell Brews using Shop-Plugins, you will need to seal them using the Brew Sealing Table.
+* It is crafted with 2 Bottles over 4 Planks
+* Putting a Brew into the Sealing table will equalise it, making it equal to other Brews that have been brewed similarly.
+* Sealed Brews cannot be aged or modified any further and they don't show their details anymore 
+
+![Brew Sealing Table recipe](https://zebradrive.de/index.php/s/aJXpWPjZAWnAvVE/download)
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