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If you are using small-bubble wrap, you should wrap each bottle at least 4 times all the way around. If you are using large-bubble wrap, 2 times should be enough. You want about 3 inches (7.6 cm) of bubble wrap surrounding each bottle.  You can tape the bubble wrap in place with Scotch tape, or use rubber bands to hold it in place.  You can also purchase a partitioned packaging container, which will keep the bottles separate so they don’t knock against each other, but it’s still a good idea to wrap them in at least 1 layer of bubble wrap if you do so.  Partitioned packaging containers are usually available at shipping supply stores, and may come in the form of  a box or an insert you can place inside a box. This will keep them from leaking if any of them break during shipment. You can also seal the bottle cap with electrical tape if you are concerned about leaks. This is especially important with carbonated liquids such as beer and kombucha, which are more likely to blow their caps during shipment. Place the smaller box roughly in the middle of the larger one on top of the padding layer, and stuff more packing material around the sides of the smaller box. It should be packed tightly enough that it does not move when you shake the larger box. If the bottles contain liquid, place them upright. If not, you can place them however they fit best. Make sure you leave at least 3 inches (7.6 cm) of space between the bottles and the sides of the box. Once you have positioned the bottles in the box, surround them with packing materials on all sides. You should also stuff some packing materials between the bottles to keep them from moving around. Be careful not to pack the box too tight. Add packing materials just until the bottles don’t move when you shake the box.
Wrap the bottles individually in bubble wrap. Seal each bottle in a plastic bag if they contain liquid. Pack the smaller box inside the larger one. Place the bottles inside the box. Stuff any empty spaces in the box with packing material.